Phenotypic relationships between heart score and feed efficiency, carcass, and pulmonary arterial pressure traits1
نویسندگان
چکیده
منابع مشابه
Phenotypic and genetic relationships of feed efficiency with growth performance, ultrasound, and carcass merit traits in Angus and Charolais steers.
Feed efficiency is of particular importance to the beef industry, as feed costs represent the single largest variable cost in beef production systems. Selection for more efficient cattle will lead to reduction of feed related costs, but should not have adverse impacts on quality of the carcass. In this study, we evaluated phenotypic and genetic correlations of residual feed intake (RFI), RFI ad...
متن کاملGenetic and phenotypic relationships of feed intake and measures of efficiency with growth and carcass merit of beef cattle.
Feed intake and efficiency of growth are economically important traits of beef cattle. This study determined the relationships of daily DMI, feed:gain ratio [F:G, which is the reciprocal of the efficiency of gain (G:F) and therefore increases as the efficiency of gain decreases and vice versa, residual feed intake (RFI), and partial efficiency of growth (efficiency of ADG, PEG) with growth and ...
متن کاملGenetic and phenotypic relationships of feeding behavior and temperament with performance, feed efficiency, ultrasound, and carcass merit of beef cattle.
Feeding behavior and temperament may be useful in genetic evaluations either as indicator traits for other economically relevant traits or because the behavior traits may have a direct economic value. We determined the variation in feeding behavior and temperament of beef cattle sired by Angus, Charolais, or Hybrid bulls and evaluated their associations with performance, efficiency, and carcass...
متن کاملPhenotypic and genetic relationships of feeding behavior with feed intake, growth performance, feed efficiency, and carcass merit traits in Angus and Charolais steers.
Feeding behavior traits including daily feeding duration (FD), daily feeding head down time (HD), average feeding duration per feeding event (FD_AVE), average feeding head down time per feeding event (HD_AVE), feeding frequency (FF), and meal eating rate (ER) were analyzed to estimate their phenotypic and genetic correlations with feed intake, growth performance, residual feed intake (RFI), ult...
متن کاملTo Determine the Relationships among Breed Composition, Skeletal Muscle Properties and Carcass Quantitative Traits1
Breed composit ion effects on blood creatine kinase (CK), longissimus muscle transverse area, percentage ham plus loin and postmortem longissimus characteristics were studied by crossbreeding between contrasting purebreds. The experiment utilized pigs of Pietrain (P), which are lean, muscular and a high percentage of which are stress susceptible, and Minn. No. 1 (M), which have the opposite cha...
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ژورنال
عنوان ژورنال: Translational Animal Science
سال: 2020
ISSN: 2573-2102
DOI: 10.1093/tas/txaa114