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Open Vet J. 2012; 2(0): -


Nutritional value of raw soybeans, extruded soybeans, roasted soybeans and tallow as fat sources in early lactating dairy cows

H. Amanlou1, N. Maheri-Sis2, S. Bassiri2,*, A. Mirza-Aghazadeh3, R. Salamatdust2, A. Moosavi4 and V. Karimi4.




Abstract

Thirty multiparous Holstein cows (29.8 ± 4.01days in milk; 671.6 ± 31.47 kg of body weight) were used in a completely randomized design to compare nutritional value of four fat sources including tallow, raw soybeans, extruded soybeans and roasted soybeans for 8 weeks. Experimental diets were a control containing 27.4 % alfalfa silage, 22.5% corn silage, and 50.1% concentrate, and four diets with either tallow, raw soybean, extruded soybean, or roasted soybean added to provide 1.93% supplemental fat. Dry matter and NEL intakes were similar among treatments, while cows fed fat diets had significantly (P

Key words: Dairy cows, Fat supplements, Oilseeds, Whole soybean.






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