Biological efficiency of Charolais beef cows of different body sizes
نویسندگان
چکیده
منابع مشابه
Reproductive Efficiency of Cows of Different Sizes
The effect of cow size on reproduction has become of in, respectively. The hip heights of the small, medium greater concern in recent years as a result of marked and large frame-size bulls used were 53, 55 and 57.5 in, increases in cow size in both purebred and commercial respectively, at 2 yr of age. The bulls were selected from herds and the extremely large effect of fertility on the within t...
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Effects of cow BW, hip height, and estimated genetic potentials (EBV) for weaning weight direct and milk on cow productivity, fecal OM output, OM intake, and efficiency (kilograms of calf BW/kilogram of OM intake by the cow) were evaluated with 44 free-grazing crossbred cows under semidesert conditions. Calf BW were measured during early, mid-, and late lactation. Data were collected in four pe...
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Defining Biological Efficiency of Beef Production
“Efficiency” is a poorly defined and generally overused term in livestock production. The segmentation present in the beef industry provides wide latitude for limited, and potentially conflicting, definitions and makes achievement of an industry-wide consensus on the definition of efficiency difficult. Much of what we believe today about efficiency of animal production was introduced by Dickers...
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In the last decades, beef cattle breeding mainly focused on improving production and reproduction traits. Nowadays, there is a growing interest to include behavior and type traits in the breeding goal. There is an interest in behavior as it is associated with human safety and workability and in type traits as they might be associated with longevity of cows. The objective of the current study wa...
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ژورنال
عنوان ژورنال: Semina: Ciências Agrárias
سال: 2018
ISSN: 1679-0359,1676-546X
DOI: 10.5433/1679-0359.2018v39n4p1737