Relevant bibliographies by topics / BREEDPLAN

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'BREEDPLAN'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "BREEDPLAN"

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Lee, S. J., K. A. Donoghue, and W. S. Pitchford. "Maternal body composition in seedstock herds. 2. Relationships between cow body composition and BREEDPLAN EBVs for Angus and Hereford cows." Animal Production Science 58, no. 1 (2018): 125. http://dx.doi.org/10.1071/an13533.

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Relationships between BREEDPLAN estimated breeding values (EBVs) for 600-day weight, maternal effect on calf weaning weight (Milk), fat depth at P8 site (Rump), 12/13th rib fat depth (Rib), eye muscle area (EMA), and intramuscular fat (IMF) with body composition measures in first- and second-parity Angus and Hereford cows were investigated. More than 4000 Angus and 1000 Hereford cows were measured for weight, height, ultrasound P8 fat depth (P8), 12/13th rib fat depth (RIB), loin EMA and IMF (%) at pre-calving and weaning. The body composition measurements were then regressed against mid-paren
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Lee, S. J., I. K. Nuberg, and W. S. Pitchford. "Maternal body composition in seedstock herds. 5. Individual-trait selection direction aligns with breeder perspectives on maternal productivity." Animal Production Science 58, no. 1 (2018): 156. http://dx.doi.org/10.1071/an14577.

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The present paper quantifies the variation in selection direction and genetic merit for the 10 Angus seedstock herds that contributed the majority of the data to the industry herd component of the Beef CRC Maternal Productivity Project. Differences in multi-trait selection direction for 17 BREEDPLAN estimated breeding values (EBVs) ranged between 16 and 63 degrees. Important differences among herds for selection direction for individual EBVs were identified. Specifically, some herds had been selecting to increase rib-fat and rump-fat EBV, while others were decreasing them. On the basis of a pr
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Boerner, V., D. Johnston, X. L. Wu, and S. Bauck. "Accuracy of Igenity genomically estimated breeding values for predicting Australian Angus BREEDPLAN traits1." Journal of Animal Science 93, no. 2 (2015): 513–21. http://dx.doi.org/10.2527/jas.2014-8357.

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Graser, H.-U., B. Tier, D. J. Johnston, and S. A. Barwick. "Genetic evaluation for the beef industry in Australia." Australian Journal of Experimental Agriculture 45, no. 8 (2005): 913. http://dx.doi.org/10.1071/ea05075.

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Genetic evaluation for beef cattle in Australia has been performed using an animal model with best linear unbiased prediction since 1984. The evaluation procedures have evolved from simple to more complex models and from few to a large number of traits, including traits for reproduction, growth and carcass characteristics. This paper describes in detail the current beef cattle genetic evaluation system ‘BREEDPLAN’ used for the Australian beef cattle industry, the traits analysed and underlying models, and presents a short overview of the challenges and planned developments of coming years.
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Meyer, K. "Estimates of genetic parameters and breeding values for New Zealand and Australian Angus cattle." Australian Journal of Agricultural Research 46, no. 6 (1995): 1219. http://dx.doi.org/10.1071/ar9951219.

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Genetic parameters and adjustment factors for birth, weaning, yearling and final weight were estimated for the New Zealand Angus population, fitting an animal model including maternal genetic and permanent environmental effects as additional random effects. Overall, pooled covariance matrices agreed well with those for Australian Angus, though heritability estimates for birth weight were somewhat lower than in Australian Angus. BREEDPLAN estimates of breeding values and their accuracies were obtained for each population separately. Correlations between estimates for sires with accurate proofs
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Johnston, DJ, H. Chandler, and HU Graser. "Genetic parameters for cow weight and condition score in Angus, Hereford, and Poll Hereford cattle." Australian Journal of Agricultural Research 47, no. 8 (1996): 1251. http://dx.doi.org/10.1071/ar9961251.

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Heritabilities and genetic correlations for cow weight and body condition score were estimated from field data for 3 beef breeds in Australia. In all, 8177 cows of mixed ages were weighed and scored for body condition at calf weaning time in seedstock herds as part of a large research project. The average weaning age was 212, 221, and 218 days for Angus, Hereford, and Poll Hereford, respectively. Cow weights and condition scores were analysed separately for each breed and estimates of genetic parameters were obtained by Restricted Maximum Likelihood (REML). Cow weight and condition score were
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Bortolussi, G., J. G. McIvor, J. J. Hodgkinson, S. G. Coffey, and C. R. Holmes. "The northern Australian beef industry, a snapshot. 2. Breeding herd performance and management." Australian Journal of Experimental Agriculture 45, no. 9 (2005): 1075. http://dx.doi.org/10.1071/ea03097.

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Breeding herd performance and husbandry were surveyed on 375 northern Australian beef properties in 8 regions during 1996 and 1997. Mean branding rates ranged from 62.6% in the Northern Territory to 77.1% in the Maranoa South West regions of Queensland with considerable variation within regional herds. The proportion of herds using controlled mating was highest in the Central Coastal, Central Highlands and Maranoa South West. Mean mating period across all regions varied from 5.6 to 11.8 months. Calving was seasonal with peak activity in the August–December period. Calving commenced earlier in
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Burrow, H. M., and B. M. Bindon. "Genetics research in the Cooperative Research Centre for Cattle and Beef Quality." Australian Journal of Experimental Agriculture 45, no. 8 (2005): 941. http://dx.doi.org/10.1071/ea05069.

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In its first 7-year term, the Cooperative Research Centre (CRC) for the Cattle and Beef Industry (Meat Quality) identified the genetic and non-genetic factors that impacted on beef eating quality. Following this, the CRC for Cattle and Beef Quality was established in 1999 to identify the consequences of improving beef eating quality and feed efficiency by genetic and non-genetic means on traits other than carcass and beef quality. The new CRC also had the responsibility to incorporate results from the first Beef CRC in national schemes such as BREEDPLAN (Australia’s beef genetic evaluation sch
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Walkom, S. F., M. G. Jeyaruban, B. Tier, and D. J. Johnston. "Genetic analysis of docility score of Australian Angus and Limousin cattle." Animal Production Science 58, no. 2 (2018): 213. http://dx.doi.org/10.1071/an16240.

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The temperament of cattle is believed to affect the profitability of the herd through impacting production costs, meat quality, reproduction, maternal behaviour and the welfare of the animals and their handlers. As part of the national beef cattle genetic evaluation in Australia by BREEDPLAN, 50 935 Angus and 50 930 Limousin calves were scored by seedstock producers for temperament using docility score. Docility score is a subjective score of the animal’s response to being restrained and isolated within a crush, at weaning, and is scored on a scale from 1 to 5 with 1 representing the quiet and
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Arthur, P. F., J. A. Archer, and R. M. Herd. "Feed intake and efficiency in beef cattle: overview of recent Australian research and challenges for the future." Australian Journal of Experimental Agriculture 44, no. 5 (2004): 361. http://dx.doi.org/10.1071/ea02162.

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In the last 10 years, there have been 3 major research and development projects in Australia on the efficiency of feed utilisation by beef cattle. The primary objective of these projects has been to examine individual animal variation in feed efficiency and its exploitation for genetic improvement in beef cattle. The results of these projects indicate that genetic variation in feed efficiency exists in Australian beef herds, that feed efficiency is moderately heritable and that the potential exists to reduce the cost of beef production through selection for efficient cattle. These results have
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Dissertations / Theses on the topic "BREEDPLAN"

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Antunes, Inês Oliveira Bernardo Marçal. "Avaliação da evolução genética de um efetivo de bovinos Aberdeen-angus." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2021. http://hdl.handle.net/10400.5/22139.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>RESUMO - A seleção genética é uma ferramenta fundamental na otimização da eficiência biológica e económica numa exploração de bovinos reprodutores, e desta forma, obter descendência com melhores performances produtivas e reprodutivas. A raça Aberdeen Angus tem vindo a apresentar uma crescente importância em Portugal, representando, atualmente, a segunda raça exótica com maior expressão no país. Com este trabalho pretendeu-se analisar os efeitos e evolução da seleção de algumas características de performance, dos animais nascidos na e
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Park, Nigel. "The application of Australian-developed performance and genetic technology to the Chinese beef industry." University of Southern Queensland, Faculty of Arts, 2003. http://eprints.usq.edu.au/archive/00001479/.

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In terms of numbers and volume of meat produced, the Chinese beef industry is one of the largest in the world. Development of the industry has only occurred within the last thirty years, and despite extensive cross-breeding programs with imported breeds, performance of Chinese cattle is low, and the industry is still subject to traditional farming methods. This study looks at the Australian-developed genetic evaluation system BREEDPLAN, which is regarded worldwide as one of the best systems for assisting with selection of beef cattle for increased performance by evaluating genetics and identif
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