Feedlot cattle with calm temperaments have higher average daily gains than cattle with excitable temperaments.
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چکیده
منابع مشابه
Feedlot cattle with calm temperaments have higher average daily gains than cattle with excitable temperaments.
This study was conducted to assess the effect of temperament on the average daily gains of feedlot cattle. Cattle (292 steers and 144 heifers) were transported to Colorado feedlot facilities. Breeds studied included Braford (n = 177), Simmental x Red Angus (n = 92), Red Brangus (n = 70), Simbrah (n = 65), Angus (n = 18), and Tarentaise x Angus (n = 14). Cattle were temperament rated on a numeri...
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Temperament ratings based on a numerical scale (chute score) were assessed during weighing and handling of cattle at a feedlot. Breeds studied included Braford, Red Brangus and Simbrah. Cattle were fed to a constant fat thickness of 9 to 13 mm (target = 11 mm) over the 12th rib as determined by periodic ultrasound measurements. Cattle were slaughtered in a commercial slaughter plant and stunned...
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Stressors can be psychological (restraint, handling, or novelty) or physical (hunger, thirst, fatigue, injury, or thermal extremes) (Grandin, 1997). Temperament has been associated with stress responsiveness in which higher concentrations of cortisol have been correlated with temperament of cattle (Curley et al., 2006; King et al., 2006). In addition, Smith and Grandin (1999) reported that appr...
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When discussing temperaments, one cannot avoid being a bit technical. However, I have also tried to be practical by discussing temperaments that can be useful to modern keyboardists, and by stressing their important acoustical properties (i.e. how they sound) rather then getting into some complex theories. No special skills in mathematics are required of the reader (footnotes will be used to co...
متن کاملGenome-Enabled Prediction of Breeding Values for Feedlot Average Daily Weight Gain in Nelore Cattle
Nelore is the most economically important cattle breed in Brazil, and the use of genetically improved animals has contributed to increased beef production efficiency. The Brazilian beef feedlot industry has grown considerably in the last decade, so the selection of animals with higher growth rates on feedlot has become quite important. Genomic selection (GS) could be used to reduce generation i...
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ژورنال
عنوان ژورنال: Journal of Animal Science
سال: 1997
ISSN: 0021-8812
DOI: 10.2527/1997.754892x