Abstract
Four lactating Holstein cows were used in a 4×4 Latin-square design to determine the effects of various levels of whole cottonseed (WCS) in diets on parameters including milk (yield and fat content), rumen fluid (pH, ammonia and TVFA) and blood (β- carotene, vit. A, vit. E, urea, NH3, Ca, P and Mg levels). Cows consumed 0, 1, 2 or 3 kg WCS per day. No significant differences were observed among the groups on analysed parameters except plasma vitamin E concentration. In addition, when the amount of cottonseed was increased, milk yield and milk fat content also tended to increase but this increase was not statistically significant. In conclusion, feeding of WCS up to 3 kg per day with ad libitum maize silage did not cause negative effects on milk yield, milk fat and blood vitamin levels in the short term in dairy cows. (Asian-Aust. J. Anim. Sci. 2006. Vol 19, No. 6 : 852-856)
Highlights
Key Words : Whole Cottonseed, Dairy Cow, Rumen, Blood study was to determine the effects of Whole cottonseed (WCS) on some blood parameters, milk yield, milk fat and rumen parameters in
Milk yield cheap in Turkey but it is not used in animal feeding was recorded in each data collection period (7 d) during am especially for dairy cows
Whole cottonseed used in the present study contained 3,346 ppm free gossypol, 23.1% CP, 11.4% ether extract (EE) and 28.6% ADF
Summary
Study was to determine the effects of WCS on some blood parameters, milk yield, milk fat and rumen parameters in. Whole cottonseed (WCS) is used as a source of energy, dairy cows. Protein and fiber in rations fed to lactating dairy cows. Most energy-rich feeds are relatively low in fiber.
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