Live measurements of weight, height, length, girth, fat depth, stifleand hip-width were obtained prior to slaughter to develop prediction equations for carcass traits. The animals were boned out after slaughter and comprised 182 steers from the Southern Crossbreeding Program (progeny from Hereford cows crossed with seven sire breeds: Angus, Belgian Blue, Hereford, Jersey, Limousin, South Devon ...

Commercial slaughter steers (n = 329) and heifers (n = 335) were selected to vary in slaughter frame size and muscle thickness score, as well as adjusted 12th rib fat thickness. After USDA carcass grade data collection, one side of each carcass was fabricated into boneless primals/subprimals and minor tissue components. Cuts were trimmed to 2.54, 1.27, and .64 cm of external fat, except for the...

Institut National de La Recherche AgronomiqueStation de Recherches Avicoles, Domaine de l'Orfrasi&e, 37380 Nouzilly, France SUMMARY Selection could contribute to reduce sexual dimorphism of body weight and its negative consequences. Genetic differences between sexes at slaughter age were first studied. Heritabilities of male and female traits were different and genetic correlations between both...

Free-range rearing allows pigs to perform species-specific and normal behavior, is an important welfare attraction among consumers, but high inputs of concentrate challenge the sustainability this practice. Exposing limited access followed by ad libitum feeding could reduce feed input while improving average daily gain conversion ratio. The objective study was investigate effects restricted in ...

Slaughter and carcass data were obtained on 197 bulls produced in a diallel involving Angus, Brahman, Hereford, Holstein and Jersey that were slaughtered at either 6, 9, 12, 15, 18, 24, or 30 mo of age. Bulls were given ad libitum access to a 72% TDN diet on an individual basis from 6 mo of age until slaughter. Empty body weight (EBWT) was determined as the sum of the weights of blood, hide, ha...

The mineral elements contained in poultry feed do not fully meet their needs. Therefore, the that are lacking diet introduced into or mixtures to ensure integrity. aim of experiment was research cobalt chelate complex effect on live weight, weight gain, slaughter quality and hematological parameters Pharaoh quails.Scientific studies quail productivity were conducted a farm Vinnytsia National Ag...

For hatcheries, not only is it important to have a high level of hatchability, but the quality of the chicks provided also has to be good, because broiler farmers are looking for chicks with a high growth potential, resulting in a greater slaughter yield at the end of the rearing period. However, chick quality has proven to be a difficult and subjective matter to define. Therefore, the aim of t...

On-farm practices like premature weaning and frequent regrouping induce stress to pigs. Early socialization or environmental enrichment in piglets reduce stress, as suggested previous studies. Little research with both effects commercial settings was found. The aim investigate the of preweaning on life-long performance 661 Danbred Two treatments were distinguished during suckling period: contro...