Crossbreeding Beef Cattle
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منابع مشابه
An overview of crossbreeding in beef cattle with reference to the Southern African situation
An increasing number of commercial beef producers direct themselves to crossbreeding systems in which crossbred animals have higher merit in reproduction, growth and end product. It has been claimed that heterosis in a sound crossbreeding program could increase the productivity in the beef cow herd by as much as 26% over a comparable straight breeding program. The availability of diverse beef c...
متن کاملThe influence of outliers on a model for the estimation of crossbreeding parameters for weaning weight in a beef cattle herd
Data on 17348 weaning weight records from a beef cattle crossbreeding operation were used to determine the effect of outliers on regression coefficients. Different criteria were used for detecting potential influential points. Eliminating a small number (932 or 5.4%) influential points resulted in the improvement of the model fitted. The R values increased from 41% to 49% while the mean square ...
متن کاملUtilizing Brahman Germplasm in Crossbreeding Systems
Greater than half of the cattle in the world are managed in tropical environments, while approximately 40% of beef cows in the United States are located in subtropical areas. Furthermore, approximately 80% of global beef production is Bos indicus based. Given this, Bos indicus germplasm plays a critical role in both US and worldwide beef production particularly when used as part of a well-struc...
متن کاملEvaluation of Straight- and Crossbreeding in Beef Cattle in the R.S.A
SUMMARY Results from various straight-and crossbreeding trials South Africa were reviewed. The conclusion is drawn that in instances, initial crossbreeding followed by inter ~ matin, crossbred cattle give the same if not better results than crossbreeding. This facilitates rangeland improvement as it number of pastures needed during the breeding season.
متن کاملGenetic and biological aspects of Zebu adaptability.
The utility and documentation of traits and characteristics of Zebu, Bos indicus, cattle in beef production in the United States are discussed with reference to adaptation. Zebu cattle are uniquely suited to hot climates due to coat, hide, skin and hematological attributes. Form, growth and physiological aspects are unique genetic attributes which are different from those of Bos taurus cattle. ...
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