نویسندگان
1 دانشجوی سابق کارشناسی ارشد دانشگاه بوعلی¬سینا، همدان
2 استادیار دانشگاه بوعلی¬سینا
3 دانشیار دانشگاه بوعلی سینا
4 استادیار دانشگاه بوعلی سینا
5 مربی دانشگاه بوعلی سینا
6 دانشجوی دکتری دانشگاه بوعلی سینا
7 دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه بوعلی¬سینا
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
This experiment was conducted to determine the effect of feeding Soybean Oil (SO) along with vitamin E on performance and mammary gland health in Holstein cows. Eight Holstein lactating cows were employed in a 2×2 factorial experiment and in an incomplete replicated latin square design. Treatment diets were: 1) 0% SO plus 0 IU of vitamin E, 2) 3% SO plus 0 IU of vitamin E, 3) 0% SO plus 8000 IU of vitamin E, and 4) 3% SO plus 8000 IU of vitamin E. At the end of each period milk and blood samples were taken. Increasing dietary vitamin E increased milk fat. Soybean oil addition decreased milk fat production, and increased milk lactose. Neither soybean oil nor the interaction of SO by vitamin E had any effect on either milk Somatic Cell Count (SCC) or Total Microbial Count (TMC). Animals fed Vitamin E had lower SCC and TMC than animals not fed the vitamin. Results finally indicated that vitamin E supplementation at a high level reduces SCC while increasing mammary glands' health in lactating dairy cows.
کلیدواژه‌ها [English]
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