VetSRev
Database of veterinary systematic reviews
Database of veterinary systematic reviews
Ciencia Rural (2008) 38: 2278–2284
DOI: 10.1590/S0103-84782008000800029
The meta-analysis methodology was applied in this study to evaluate factors that affect the carcass quality components in beef cattle (rib eye area – AOL and fat thickness – EGC, measured between the 12th and the 13th ribs) and to compare them in different genetic groups. Data from 215 measures of AOL and 209 measures of EGC, from 65,174 animals, extracted from 36 papers published between 1985 and 2006 were used. The Restricted Maximum Likelihood Method and an animal model that considered AOL and EGC as functions of the fixed effects of country from where the data come from; animal category; feed system; measure methodology; _Bos indicus_, british and continental _Bos taurus_ gene contribution; age and weight at measure, were used. The observed averages for AOL and e EGC were 63.5 cm² and 4.2 mm, respectively. The animals were in average 552.22 days old at the measure of the characteristics and had 468.47 kg of live weight. The use of meta-analysis permitted to get generalized conclusions about AOL and EGC: animals rose in the EUA presented values significantly superior for AOL and EGC when compared with those rose in Australia and Brazil; castrated and the entire males presented bigger AOL measures (do not differing among them) compared to females, and females presented bigger EGC. The feed system, confined and do not confined, were superior to the greasing system. The Continental _Bos taurus_ genotypes presented bigger AOL values, British _Bos taurus_ presented bigger EGC values, and _Bos indicus_ presented intermediate values. The measures taken in the carcass (pos mortis) and by ultra son (in vivo) were not different. The increase in the characteristics decreased with the age and live weight increase.
Lopes, J. S., Rorato, P. R. N., Weber, T., Rodrigues, R. D., Comin, J. G., & Dornelles, M. de A. (2008). [Metanalysis for carcass traits of cattle from different genetic groups]. Ciencia Rural, 38(8), 2278–2284. https://doi.org/10.1590/S0103-84782008000800029 [Indexed using CAB Thesaurus terms], Animal Reproduction and Embryology [LL250], animals, Artiodactyla, Chordata, eukaryotes, mammals, ungulates, vertebrates, Australia, Bos, Bovidae, cattle, Diagnosis of Animal Diseases [LL886], ruminants, Developing Countries, America, Animal Genetics and Breeding [LL240], animal models, Animal Nutrition (Production Responses) [LL520], Australasia, beef, beef cattle, Brazil, carcass quality, carcasses, castration, Commonwealth of Nations, Developed Countries, effects, European units of account, eyes, Food Composition and Quality [QQ500], genotypes, Helminth, Helminth and Arthropod Parasites of Humans [VV220], in vivo, Latin America, liveweight gain, liveweight gains, maximum likelihood, meat, Meat Produce [QQ030], methodology, methods, Mollusc and Arthropod Parasites of Animals [LL822], Oceania, OECD Countries, performance traits, Protozoan, Restricted Maximum Likelihood, ribs, South America, techniques, Techniques and Methodology [ZZ900], Threshold Countries, traits, zebu