Digestible energy requirements for growth in Hereford and Charolais × Hereford steers
نویسندگان
چکیده
منابع مشابه
Genetic relationships between calving and carcass traits for Charolais and Hereford cattle in Sweden.
The objective of this study was to estimate genetic correlations between calving difficulty score and carcass traits in Charolais and Hereford cattle, treating first and later parity calvings as different traits. Genetic correlations between birth weight and carcass traits were also estimated. Field data on 59,182 Charolais and 27,051 Hereford calvings, and carcass traits of 5,260 Charolais and...
متن کاملProduction of Grade Hereford, Beefmaster x Hereford, and Braford x Hereford Calves in South Florida
INTRODUCTION In any discussion of beef cattle production in a particular environment the matter of climatic adaptability is of prime consideration. Adaptation for beef cattle might be defined as the ability to reproduce, grow and thrive under local environmental conditions. Much has been written about the ability or inability of temperate zone breeds of cattle to adapt to hot, humid, subtropica...
متن کاملComparision of Genetic Parameters for Calving Difficulty in Angus, Charolais, Hereford and Limousin
Data on Angus (ANG), Charolais (CHR), Hereford (HER) and Limousin (LIM) cattle were used to estimate genetic parameters for calving difficulty (CD) and to quantify genetic relationships among CD, birth weight (BWT) and gestation length (GL). Bayesian analysis was carried out using Gibbs sampling to obtain means of marginal posterior distributions. Estimated heritabilities for direct genetic eff...
متن کاملGrowth, feed efficiency and variation of individually fed Angus, polled Hereford and Holstein steers.
Individual growth and feed intake of 36 Angus, 27 Polled Hereford and 30 Holstein steers were determined from 365 to 560 kg live weight. One-half of the cattle in each breed were fed a diet based on high-moisture ear corn and the other one-half were fed a diet based on corn silage. Within each breed X diet group, half of the cattle were implanted with zeranol. Cattle fed the high-moisture ear c...
متن کاملCalving Difficulties among Pure-bred Charolais, Limousin, Maine-anjou and Hereford Cattle in France
Calving difficulties were examined in pure-bred Charolais, Limousin, MaineAnjou and Hereford cattle maintained in stalls at Bourges, France. The cows were born in 1970 and raised together from weaning. Records of calving performance, birth weights, gestation lengths and dam weights after calving from 2 to 5 years of age were analysed to compare breeds and to estimate maternal and direct genetic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 1992
ISSN: 0008-3984,1918-1825
DOI: 10.4141/cjas92-076