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Aberdeen Angus

The Aberdeen Angus, often simply called Angus, is a Scottish breed of beef cattle developed in the early 19th century from naturally polled (hornless) and predominantly black native stock in the counties of Aberdeen and Angus in northeastern Scotland.^[1] This breed is distinguished by its solid black (or occasionally red) coat, compact muscular frame, and early maturity, making it highly valued for producing tender, well-marbled beef with high carcass yield.^[2]^[3] Angus cattle are naturally hornless, hardy against harsh weather, undemanding in feeding, and known for their docile temperament, which facilitates handling and contributes to their widespread use in both purebred and crossbreeding programs.^[4]^[5] The breed's development is credited to pioneering Scottish breeders such as Hugh Watson of Keillor and William McCombie of Tillyfour, who selectively bred local "black-hornless" cattle starting in the late 18th century to emphasize traits like fertility, longevity, and meat quality.^[6] The first herd book was published in 1862, and the Aberdeen Angus Cattle Society was founded in 1879, formalizing the breed's standards and promoting its improvement through linebreeding of foundational cow families dating back to the mid-18th century.^[1] By the mid-19th century, the breed gained recognition for its efficiency on pasture, resistance to diseases, and ability to thrive in rugged conditions, solidifying its reputation as one of Europe's oldest beef breeds with roots traceable to the 15th century.^[7] Introduced to North America in 1873 by George Grant, who imported four bulls to Kansas and crossed them with Texas Longhorns to demonstrate their hardiness and productivity, the Aberdeen Angus quickly spread across the United States and Canada.^[1] The American Angus Association, founded in 1883, became the world's largest beef breed registry, reflecting the breed's global popularity; as of 2023, Angus influences over 80% of U.S. beef cattle and is raised in more than 20 countries for its maternal strengths, growth rates, and premium beef attributes.^[8] Notable for calving ease and longevity—cows often productive into their teens—the breed excels in grass-fed systems while adapting well to feedlots, though it requires attention to manage frame size in modern selections.^[3]

History

Origins and Development in Scotland

The Aberdeen Angus breed originated from native black, polled (hornless) cattle found in the counties of Aberdeenshire and Angus in northeast Scotland, with evidence of such cattle depicted in prehistoric carvings dating back before recorded history.^[9] These indigenous animals, locally known as "Angus doddies" in the south and "Buchan humlies" in the north, were hardy stock adapted to the region's rugged terrain and harsh weather, forming the foundational gene pool for the breed.^[10] By the early 19th century, selective breeding efforts began to refine these populations into a more uniform type suited for beef production. Hugh Watson, a tenant farmer at Keillor in Angus, is recognized as the primary founder of the breed, starting his systematic improvement program around 1808 by gathering and selectively breeding black, polled cattle for superior beef conformation, fertility, and maternal traits.^[9] Watson's Keillor herd, established by 1824, emphasized compact frames, early maturity, and high-quality meat yield, with notable animals like the bull Old Jock exemplifying his success in producing prize-winning stock at agricultural shows.^[1] Building on this foundation, William McCombie of Tillyfour in Aberdeenshire took over the farm in 1835 and further advanced the breed through close breeding of Keillor lines, focusing on enhanced fertility, longevity, and overall hardiness while maintaining economic feeding practices.^[9] McCombie's efforts in the mid-19th century preserved and elevated the breed's reputation, as his cattle consistently outperformed others in market weights and show competitions.^[11] The breed's formal standardization occurred with the establishment of the Aberdeen-Angus Cattle Society in 1862, which published the first herd book to record pedigrees and unify naming from regional variants like "Buchan Dunnies."^[1] This milestone marked the transition from localized improvement to a recognized breed, with the society (formally incorporated in 1879) enforcing standards for polled, black-coated animals of good beef form.^[12] Through these 19th-century breeding practices, the Aberdeen Angus evolved from diverse native stock into a distinct breed by the 1850s, prized for its adaptability to Scotland's severe climates, moderate size, and efficient beef production under extensive grazing systems.^[9] This Scottish development laid the groundwork for the breed's later dissemination beyond its homeland starting in the 1860s.^[1]

Expansion within the British Isles

The expansion of the Aberdeen Angus breed beyond its Scottish origins commenced in the mid-19th century, with the first notable shipment of cattle from Scotland to England occurring in 1863. This movement facilitated the establishment of early herds in southern England, notably through the efforts of breeders such as Sir George Macpherson-Grant, who played a key role in promoting the breed's qualities for beef production in new regions.^[13] These initial transfers marked the beginning of the breed's commercialization within the British Isles, building on its Scottish breeding foundation to meet growing demand for high-quality beef.^[10] The breed's visibility and popularity surged through participation in agricultural shows, debuting at the Smithfield Show in 1865, where its superior beef conformation and finishing ability impressed judges and buyers alike. By the 1870s, Aberdeen Angus cattle had come to dominate fat stock competitions across the UK, consistently securing top honors and solidifying their reputation as a premier beef breed.^[14] This success in the show ring not only boosted demand but also encouraged further dissemination among English farmers seeking efficient, hardy stock. Adaptation to English farming conditions involved targeted selection for enhanced grazing efficiency on the milder, more fertile pastures of southern regions, differing from the rugged Scottish terrain. The Aberdeen-Angus Herd Book, initially focused on Scottish registrations, expanded by the 1880s to incorporate English-bred animals, reflecting the breed's growing integration into diverse UK agricultural systems. Economically, the Aberdeen Angus contributed significantly to Britain's late-19th-century beef export trade, prized for producing marbled, tender meat that met international standards. By 1900, the breed's proliferation was evident with over 500 registered herds throughout the British Isles, underscoring its commercial impact and widespread adoption.^[13]

Introduction to North America

The introduction of Aberdeen Angus cattle to North America marked a pivotal expansion from their Scottish origins, where the breed had gained prominence through selective breeding in the counties of Aberdeen and Angus during the 19th century. The first importation to the United States occurred in 1873 when George Grant, a Scottish settler, brought four purebred bulls from Scotland to his ranch in Victoria, Kansas, aiming to cross them with local Texas longhorn cattle to improve hardiness on the open prairies. Although Grant's initial experiment faced challenges due to the breed's initial struggles with the harsh, arid conditions and predation, it laid the groundwork for future imports. These early animals demonstrated the breed's potential for beef production, prompting further shipments sourced from established Scottish herds.^[1] Subsequent imports accelerated the breed's establishment, particularly in the Midwest. In 1878, James Lackey and George Findlay imported one bull and five cows to Lake Forest, Illinois, forming the first registered Aberdeen Angus herd in the United States and initiating systematic breeding efforts. Between 1878 and 1883, over 1,200 animals were imported, primarily to Illinois, Iowa, and other Midwestern states, significantly bolstering herd sizes and genetic diversity. These imports, drawn from premier Scottish bloodlines, enabled breeders to overcome initial adaptation issues, such as the cattle's sensitivity to extreme heat and the need for supplemental feeding on native grasses. By the early 1880s, the breed's polled nature, early maturity, and superior carcass quality—yielding high marbling and tenderness—proved advantageous for American ranching. The American Angus Association was founded in 1883 to standardize registration, with the first herd book published in 1884, formalizing the breed's presence.^[9]^[15] In Canada, the breed's arrival followed closely, with the first successful importation in 1876 by William Brown to the Ontario Agricultural College in Guelph, Ontario, where a registered herd was established. This shipment included cows and bulls that produced the first purebred Aberdeen Angus calf born in North America in 1877, sparking interest among eastern breeders. The cattle quickly adapted to Ontario's mixed farming systems, but their real proliferation occurred in the western prairies after the 1880s, where ranchers valued their thriftiness on rough forage and resistance to cold winters during the expansion of cattle operations in Alberta and Saskatchewan. The Canadian Angus Association was formed in 1906 to oversee registrations and promote the breed, reflecting its growing integration into Canadian agriculture. Early successes included superior performance in feedlot trials, highlighting the breed's efficiency in converting grass to high-quality beef.^[16]^[17] The 20th century saw explosive growth, driven by the breed's demonstrated advantages in competitive shows. By the 1920s, the United States had over 10,000 registered Aberdeen Angus animals, surpassing registrations in Scotland and underscoring the breed's dominance in North American beef production. A landmark event was the 1902 Chicago International Livestock Exposition, where the Aberdeen Angus steer "Shamrock," exhibited by Iowa State College, won grand champion honors over all breeds, showcasing the breed's exceptional carcass quality with its well-marbled, fine-textured meat that commanded premium prices. This victory, along with consistent wins in subsequent shows, solidified the breed's reputation for adapting to North American conditions while maintaining superior beef traits, paving the way for widespread adoption in both countries.^[1]^[18]

Adoption in Other Regions

The Aberdeen Angus breed was introduced to Australia in the 19th century by Scottish settlers, with initial imports to Tasmania in the 1820s and further arrivals to the mainland in 1840. The cattle's hardiness and ability to thrive in arid conditions facilitated their adaptation to diverse Australian environments, making them a staple for beef production. The Australian Angus Society was established in 1919 to register pedigrees and promote the breed, leading to its dominance in the national beef industry by the mid-20th century.^[19]^[9] In Argentina, the breed arrived via British exporters in the early 1880s, with the first documented import in 1879 by landowner Don Carlos Guerrero, who brought one bull and two cows to his estancia in Buenos Aires province. The Aberdeen Angus excelled on the expansive pampas grasslands, valued for their superior beef quality and efficiency in grass-fed systems. By the 1920s, the breed had become central to Argentina's booming export beef trade, accounting for a major share of high-quality shipments to Europe. The Argentine Aberdeen Angus Breeders Association was founded in 1925 to organize breeders and maintain herd books, solidifying its economic importance.^[20]^[21]^[22] In the 1950s, in West Germany, Aberdeen Angus cattle were imported and selectively crossed with local dual-purpose breeds, such as Fleckvieh, to enhance beef yields while retaining some milk production traits. A dedicated breed book for the resulting German Angus strain was initiated in 1950, marking formal recognition and supporting ongoing improvement programs.^[23] The breed's dissemination extended to other regions during the era of colonial expansion, where it supported agricultural development and beef-oriented farming. In New Zealand, Aberdeen Angus arrived in 1863, quickly integrating into pastoral systems and contributing to the country's export-focused livestock industry. South Africa saw introductions in the 1890s, with the cattle aiding in the establishment of commercial beef herds in temperate and semi-arid zones. In Brazil, initial imports reached the southern state of Rio Grande do Sul in 1906, followed by broader adoption in the 1920s, where the breed enhanced crossbreeding efforts for improved carcass quality in subtropical conditions.^[7]^[23]^[24]

Characteristics

Physical Appearance

The Aberdeen Angus breed is naturally polled, meaning individuals are born without horns, a trait resulting from a genetically dominant polled gene that distinguishes it from many other beef breeds. This hornless characteristic was a key selection criterion during the breed's early development in Scotland. The breed's coat is predominantly solid black, controlled by a homozygous dominant gene for pigmentation, though a recessive red variant exists, producing Red Angus cattle with otherwise similar morphology. The coat consists of a sleek, short summer hair for heat dissipation and a thicker, curly winter coat that provides insulation against harsh weather, enhancing the breed's hardiness.^[9]^[25]^[26]^[27]^[28] Aberdeen Angus cattle exhibit a compact, rectangular body conformation with a moderate frame size, featuring a deep, wide body cavity, straight topline, and well-balanced proportions that promote efficient feed conversion and meat yield. Mature bulls typically weigh 1,800 to 2,200 pounds (816 to 998 kg), while cows range from 1,000 to 1,400 pounds (454 to 635 kg), with averages around 1,800 pounds for bulls and 1,200 pounds for cows, reflecting selective breeding for balanced growth without excessive size. The overall build emphasizes symmetry, muscularity, and a low-set stature, contributing to the breed's reputation for quality beef production.^[29]^[9]^[30]^[31] The head is small and refined, with short, upturned ears that add to the breed's alert yet docile appearance, and the muzzle is black to match the coat. Extremities are clean and well-muscled, with straight legs set squarely under the body for soundness and mobility, terminating in hard black hooves that provide durability on varied terrain. These features collectively define the standardized purebred morphology, prioritizing functionality for beef-oriented environments.^[32]^[33]

Temperament and Behavior

The Aberdeen Angus breed is renowned for its docile temperament, characterized by a calm and non-aggressive disposition that facilitates handling in various production environments. This trait reduces the flight zone—the distance at which cattle feel comfortable around humans—making the breed particularly suitable for smaller-scale operations where labor resources may be limited. Breeders and handlers report that Aberdeen Angus cattle exhibit low levels of aggression, allowing for easier movement through yards and chutes with minimal stress responses.^[34]^[35]^[36] In terms of foraging efficiency, Aberdeen Angus cattle demonstrate strong grazing abilities, thriving on grass-based diets in extensive pasture systems without the need for supplemental feed in moderate climates. Their adaptability to diverse forage conditions stems from an innate preference for natural grazing, enabling efficient utilization of pasture resources while maintaining body condition. This behavioral trait supports sustainable management practices, as the breed's foraging patterns contribute to even pasture wear and reduced overgrazing risks.^[37]^[38]^[39] Within herd dynamics, Aberdeen Angus females display protective yet non-vicious maternal instincts toward their calves, fostering strong cow-calf bonds without excessive aggression toward handlers. Bulls of the breed are generally even-tempered, though they necessitate standard bull management protocols to ensure safety. These behaviors promote stable herd cohesion, with cows exhibiting calm interactions during group movements and separations.^[36]^[40] Comparatively, Aberdeen Angus cattle are less excitable than Bos indicus-influenced breeds, such as Brahman crosses, which often display higher reactivity and stress responses during handling. This relative calmness in Aberdeen Angus contributes to fewer stress-related behavioral issues, enhancing overall manageability across different production systems.^[41]^[42]

Reproductive and Health Traits

The Aberdeen Angus breed exhibits favorable reproductive traits, including high calving ease attributed to moderate calf birth weights averaging 75-85 pounds (34-39 kg) and a gestation period of approximately 282-283 days. These characteristics contribute to low dystocia rates, typically under 5% in mature cows without assistance, reducing the need for intervention and minimizing stress on dams.^[43]^[44]^[45] Fertility in Aberdeen Angus cows is robust, with heifers commonly reaching puberty between 10 and 14 months of age, enabling breeding at 15 months for calving at 24 months. Conception rates exceed 90% under natural service conditions, supporting efficient herd reproduction, while cows demonstrate longevity with productive lifespans often spanning 10-12 lactations, equivalent to 12-15 years in commercial settings.^[46]^[47]^[48] Health traits in the breed include resilience to harsh weather due to a dense, protective coat, alongside sound hoof structure that provides durability on varied terrain. A notable genetic concern is arthrogryposis multiplex (AM), also known as curly calf syndrome, a rare recessive lethal condition causing deformed calves that die at or shortly after birth; it is managed through genetic testing to avoid carrier matings. Crossbreeding with Aberdeen Angus genetics often imparts hybrid vigor, enhancing overall vigor and disease resistance in offspring.^[49]^[50]^[51]

Uses

Beef Production

The Aberdeen Angus breed excels in beef production due to its exceptional carcass quality, primarily driven by high intramuscular fat, known as marbling, which often results in tender, flavorful meat that achieves USDA Prime or Choice quality grades.^[52] This marbling enhances palatability without excessive external fat deposition, contributing to desirable yield grades of 1-2 that reflect efficient lean meat production.^[53] Typical dressing percentages for Angus carcasses range from 60% to 65%, allowing for a high proportion of marketable cuts from the live animal weight.^[54] In terms of growth performance, Aberdeen Angus steers demonstrate robust development on pasture, achieving average daily gains of 2.5 to 3.5 pounds (1.1 to 1.6 kg) under optimal forage conditions.^[55] These cattle typically reach finished market weights of 1,100 to 1,400 pounds (500 to 635 kg), balancing rapid growth with the muscle conformation that supports high beef yield.^[56] Aberdeen Angus holds significant market dominance in the United States, comprising over 60% of beef breed registrations and influencing more than 80% of the national cow herd through its genetics as of 2025.^[57]^[58] The Certified Angus Beef program capitalizes on this, enforcing stringent marbling standards—such as modest or higher levels—to ensure premium quality, which translates to elevated pricing for qualifying beef in retail and foodservice sectors.^[59]^[60] The breed's feeding efficiency further bolsters its value in beef production, as Aberdeen Angus cattle effectively convert forage into muscle mass, minimizing input costs in grass-fed operations while maintaining productivity.^[61] This trait aligns well with sustainable systems, where lower feed requirements support economical rearing without compromising end-product quality.^[55]

Breeding and Crossbreeding

Aberdeen Angus bulls are frequently utilized as terminal sires in crossbreeding programs, particularly when mated to F1 hybrid cows or dairy breeds, to produce slaughter calves with enhanced tenderness and marbling. This approach leverages the Angus breed's superior intramuscular fat deposition and carcass quality traits, which improve the overall grading potential of offspring from larger-framed Continental breeds like Charolais or Simmental, or from dairy cows such as Holsteins. For instance, the American Angus Association has developed specific indexes like the Angus-on-Holstein ($AxH) terminal index to select sires that optimize profitability in these crosses by balancing growth, calving ease, and beef yield.^[62] As dams, Aberdeen Angus cows contribute significantly to balanced hybrid programs, often crossed with Hereford or Charolais bulls to produce versatile offspring like the Black Baldy (Angus x Hereford), which combines the Angus's hardiness, fertility, and maternal instincts with the sire breed's growth rate and foraging ability. These crosses result in cows that exhibit improved longevity and reproductive efficiency while producing calves with moderate frame size suitable for diverse production systems. The inherent calving ease of Angus females further supports these matings by reducing dystocia risks in hybrid progeny.^[63]^[64] Hybrid vigor in Aberdeen Angus crosses is particularly evident in tropical adaptations, such as the Angus x Brahman mating, which yields calves with approximately 10-15% higher weaning weights compared to purebred averages due to heterosis in growth and heat tolerance. This combination is widespread in Australian northern beef operations and U.S. southern feedlots, where Brangus (5/8 Angus, 3/8 Brahman) genetics dominate for their resilience in subtropical environments and efficient conversion to high-quality beef.^[65]^[66] Modern selection in Aberdeen Angus crossbreeding relies on genomic-enhanced Expected Progeny Differences (EPDs) to target key traits like ribeye area and fat thickness, enabling breeders to predict hybrid performance more accurately. The American Angus Association integrates genomic data into EPD calculations via single-step genomic evaluations, significantly improving the accuracy of EPDs for young animals. This facilitates precise sire selection for terminal or maternal roles, ensuring hybrids meet market demands for marbling and yield without excessive fat deposition.^[67]^[68]

Genetic Resources and Conservation

Breed Registries and Associations

The Aberdeen-Angus Cattle Society, established in 1879 in the United Kingdom, maintains the official herd book for the breed, which originated with the first volume published in 1862.^[12]^[69] This society oversees pedigree registrations for purebred Aberdeen Angus cattle in the UK, ensuring breed standards and provenance through meticulous record-keeping.^[12] In the United States, the American Angus Association, founded on November 21, 1883, in Chicago, Illinois, serves as the primary registry and is recognized as the world's largest beef breed organization, with over 21,000 members including adult and junior participants.^[8]^[70] The association manages extensive performance data and implements DNA verification programs to confirm parentage and enhance genetic selection.^[71]^[72] Internationally, key registries include the Canadian Angus Association, formed in 1906 to promote breed improvement and provide services to members across Canada.^[16] The Angus Australia, established in 1919, coordinates genetic resources and breed promotion throughout Australia. In Argentina, the Asociación Argentina de Angus, founded in 1920, supports local breeders in maintaining high-quality Angus herds.^[73] These organizations collaborate through the World Angus Forum, initiated in 1969, to align global standards, share genetic information, and facilitate international breed development.^[74] These registries collectively handle core functions such as pedigree certification to verify ancestry, organization of breed shows and auctions to showcase superior animals, and promotional efforts to advance the breed's market presence.^[12]^[75] Since the 2010s, many have adopted digital genomic databases and testing protocols to integrate modern biotechnology into traditional herd management.^[71]^[76]

Genetic Diversity and Management

The Aberdeen Angus breed is not classified as endangered, with annual global registrations exceeding 500,000 animals (as of recent years), though exact active population figures vary by registry, but commercial lines exhibit reduced genetic diversity due to ongoing inbreeding pressures. Recent genomic analyses using single nucleotide polymorphism (SNP) markers reveal moderate levels of heterozygosity, though effective population sizes (Ne) in major subpopulations, such as the American Angus, have increased under genomic selection, with recent pedigree-based estimates ranging from 183 for sires to 315 for dams (as of 2017 data), indicating vulnerability to further erosion if unmanaged.^[77]^[78] Key threats to the breed's gene pool stem from historical and ongoing bottlenecks, notably the extensive use of popular sires facilitated by artificial insemination during the 1980s expansion, which amplified relatedness and contributed to inbreeding coefficients averaging approximately 0.1-0.2% annually in affected lines. Additionally, the dilution of purebred genetics through crossbreeding with other beef breeds has further narrowed the effective gene pool in commercial operations.^[79]^[80] To counteract these risks, breed registries have integrated genomic selection programs since 2009, enabling breeders to select for economically important traits like growth and carcass quality while incorporating genomic estimated breeding values to minimize inbreeding and preserve diversity. Cryopreservation efforts, including semen and embryo banking, are supported by specialized facilities in the United States, such as the USDA Meat Animal Research Center's germplasm repository, and in the United Kingdom, where frozen collections dating back to the 1960s have been utilized to restore rare lineages.^[81]^[82]^[83] As of 2023, the World Angus Secretariat continues to promote genetic exchange programs to enhance diversity across populations.^[74] The Red Angus variant, distinguished by its recessive red coat color gene, receives targeted conservation as a distinct line, with organizations like the Red Angus Association of America maintaining dedicated pedigrees and promoting breeding strategies to enhance its genetic diversity and prevent assimilation into black Angus populations.^[84]^[85]

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At what age is it safe to breed a heifer? - UNL Beef
Feb 2, 2020 · Most heifers will reach puberty and be bred by 12 to 14 months of age and will be between 55% and 65% of their mature weight when they first begin to exhibit ...
[47]
Pregnancy rate and first-service conception rate in Angus heifers
Aug 9, 2025 · Heifer pregnancy rate varied from 75 to 95% between herds, and from 65 to 100% between sires, with an overall pregnancy rate of 93%, measured as ...
[48]
[PDF] ISU Angus Cow 98398: A Model of Longevity
Typical purebred Angus cows usually remain productive until about 10 or 12 years of age.Missing: lactations | Show results with:lactations
[49]
https://extension.psu.edu/common-diseases-of-grazing-beef-cattle
[50]
Arthrogryposis multiplex (AM) - Angus Australia
Arthrogryposis multiplex (AM) also known as 'Curly Calf Syndrome' was recognised in 2008. The lethal condition causes calves to be born dead or die shortly ...
[51]
[PDF] Crossbreeding: Considerations and Alternatives in an Evolving Market
Clearly, the most important breed differentiation revolves around Angus or Angus-derived cattle. The breed provides producers with a historical carcass.Missing: Aberdeen | Show results with:Aberdeen
[52]
Aberdeen Angus | The Beef Site
They are resistant to harsh weather, undemanding, adaptable, good natured, mature extremely early and have a high carcass yield with nicely marbled meat.
[53]
Carcass Beef Grades and Standards - Agricultural Marketing Service
A carcass in Yield Grade 1 usually has only a thin layer of external fat over the ribs, loins, rumps, and clods, and slight deposits of fat in the flanks and ...Missing: Angus | Show results with:Angus
[54]
Certified Angus Beef: Quality beef grade, dressing percentage and ...
Mar 16, 2017 · “Falling below the industry standard of 63.5 percent dressed weight means we start out on the grid several dollars behind the alternative live- ...Missing: characteristics | Show results with:characteristics
[55]
Finishing Beef Cattle On The Farm | Oklahoma State University
... average daily weight gain is 1.5 pounds per day. Some extensive forage-finishing systems may require a longer duration for calves to reach slaughter weight ...
[56]
[PDF] Starting/Ending Weights and Average Daily Gain (ADG) Requirements
Steers: 1250 - 1350 lbs. Heifers: 1100- 1250 lbs. Average Daily Gain (ADG). Formula: Pounds Gained / # of Days.Missing: pasture | Show results with:pasture<|control11|><|separator|>
[57]
2025 Top Angus Sires
Sep 30, 2025 · Angus cattle remain prevalent in America's beef industry with more than 80% of the cow herd influenced by Angus genetics.Missing: percentage | Show results with:percentage
[58]
Why Certified Angus Beef
Every cut meets our 10 quality standards, ensuring exceptional taste. Just ... Modest or higher marbling – for the taste that ensures consumer satisfaction.Missing: characteristics | Show results with:characteristics
[59]
[PDF] Certified Angus Beef G-1 Specification - Agricultural Marketing Service
Free of “dark cutting” characteristics. 1 Determined in accordance with the “Official United States Standards for Grades of Carcass Beef.” 2 Evaluated using the ...
[60]
Feed Efficiency in Beef -- There is a Genetic Solution! - Lucky 7 Angus
There are two types of feed efficiency. Gain in the feedlot with best feed to gain ratio and cows on grass or hay that eat less while producing the same size or ...Missing: forage | Show results with:forage
[61]
EPD $Value Definitions - American Angus Association
Two indexes have been developed for the dairy market: Angus-On-Holstein ($AxH), a terminal index, expressed in dollars per head, to predict profitability ...
[62]
[PDF] Crossbreeding Systems for Small Herds of Beef Cattle - MU Extension
Crossbred cows from the maternal rotation are mated to a terminal sire breed. Cows express partial maternal heterosis and calves express 100 percent individual ...Missing: Aberdeen | Show results with:Aberdeen
[63]
[PDF] Comparisons of Angus-Hereford reciprocal cross cows.
The Angus breed is recognized for its maternal ability and marbling while many producers like Hereford cattle because of their adaptability to harsh conditions.
[64]
Crossbreeding Systems in Beef Cattle
This idea can best be illustrated through the example listed below for weaning weight. Brahman average 500 lbs; Angus average 550 lbs; Average of purebreds 525 ...
[65]
[PDF] Breed and Heterosis Effect in Crosses among the Angus, Brahman ...
Individual records were maintained for birth, survival, sex, age of calf at weaning, weaning weight, estimated 205-day weight, and condition score of calves.
[66]
Genomic Enhanced EPDs - American Angus Association
EPDs with genomic data are the best estimate of an animal's genetic value as a parent combining all available sources of information.
[67]
Carcass - American Angus Association
The weekly genetic evaluations result in a single EPD for carcass weight, marbling score, ribeye area, and fat thickness. The units of measure for EPDs are in ...
[68]
Catalog Record: The Aberdeen-Angus herd book
Language(s): English ; Published: Aberdeen, Scotland, 1862- ; Subjects: Cattle · Aberdeen-Angus cattle · Aberdeen-Angus cattle · Cattle > Cattle / Pedigrees
[69]
American Angus Association
The American Angus Association is the nation's largest beef registry association with over 30000 adult and junior members. Our goal is to serve the beef ...Find an Animal · Sale Reports · Sale Books · Member Center
[70]
DNA Testing - American Angus Association
You're making a smart decision by testing your animals. Now make it easy on yourself by reviewing how to collect and submit samples.
[71]
[PDF] Association Highlights
Effective Jan. 1, the American Angus. Association began using DNA technology to verify parentage on all animals. The. Association Board of Directors approved ...
[72]
Asociación Argentina de Angus. 100 años apostando por el país
Sep 18, 2020 · Hoy se cumplen 100 años desde aquel 18 de septiembre de 1920 en que un grupo de emprendedores y criadores fundó la entonces Corporación ...
[73]
World Angus Secretariat
The World Angus Secretariat was established in 1969 to facilitate the sharing of information between the various Angus Societies/Associations of the world.Articles of Association · Past Events · News · Members
[74]
About - American Angus Association
We have over 140 years of rich history and heritage, but we're not willing to rest just yet. Together, we are improving the Angus breed and therefore, the ...
[75]
Registrations and DNA Testing - Aberdeen-Angus Cattle Society
Sep 6, 2023 · The Society will no longer be testing all male animals upon registration. Instead, the Society will be emailing a list to breeders of animals eligible for DNA ...Missing: annual | Show results with:annual
[76]
[PDF] Estimation of inbreeding and effective population size of full
Estimates of the effective population size for. Ayrshire, Brown Swiss, Guernsey, Holstein, Jersey and Angus breeds were 161, 61, 65, 39, 38 and 94 animals, ...
[77]
Trends in genetic diversity and the effect of inbreeding in American ...
Jun 16, 2021 · The purpose of this study was to determine changes in genetic diversity as a result of the implementation of genomic selection in Angus cattle.Missing: Aberdeen | Show results with:Aberdeen
[78]
[PDF] Studying the Angus Family Tree
Mar 2, 2012 · “In any livestock where AI is widespread, the potential for inbreeding is there,” he says. AI has allowed breeders to use popular sires within a ...
[79]
Trends in genetic diversity and the effect of inbreeding in American ...
The purpose of this study was to determine changes in genetic diversity as a result of the implementation of genomic selection in Angus cattle.Missing: 1980s AI
[80]
Genomic selection in beef cattle creates additional opportunities for ...
The use of genotype information to improve the predictability of Expected Progeny Difference was first implemented in American Angus cattle in 2009 and has ...Missing: programs | Show results with:programs
[81]
Old Bulls Bring New Genetic Benefits To Light - USDA ARS
Jun 26, 2023 · Both the Angus and Holstein examples illustrate the value of the germplasm collection to broaden, and even rescue, genetic diversity, improve ...
[82]
Farmers use 1960s cow semen to save rare Native Aberdeen Angus ...
Nov 1, 2021 · Farmers have used frozen semen from the 1960s save a rare species of Aberdeen Angus cows from extinction - with one super-fertile bull named after Prime ...
[83]
[PDF] RAAA_Annual Report_2021.indd - Red Angus Association
The popularity of Red Angus cattle with their diverse set of positive characteristics and industry-leading convenience traits have fueled this rapid growth. The ...
[84]
Mean inbreeding coefficients for the registered American Red Angus...
Breed maintains a conservation index of 2.75, indicating relatively high genetic diversity. Recent conservation efforts have led to an increase in registered ...<|control11|><|separator|>