EFFECT OF FEEDING FREQUENCY OF PROTEIN SOURCES ON FIBER DIGESTIBILITY, FEEDING BEHAVIORS AND RUMEN METABOLITES OF HOLSTEIN COWS

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HAJILOU MOUSTAFA; MIRZAEI ALAMOUTI HAMID REZA; GHANJKHANLOU MEHDI; AMANLOU HAMID

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Journal: Journal of Animal Production Year:2016 | Volume:17 | Issue:2 Page(s): 347-358

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Title

EFFECT OF FEEDING FREQUENCY OF PROTEIN SOURCES ON FIBER DIGESTIBILITY, FEEDING BEHAVIORS AND RUMEN METABOLITES OF HOLSTEIN COWS

Author(s)

HAJILOU MOUSTAFA | MIRZAEI ALAMOUTI HAMID REZA | GHANJKHANLOU MEHDI | AMANLOU HAMID | Issue Writer Certificate

Keywords

CORN SILAGEQ2

FISH MEALQ2

HOLSTEIN COWSQ2

SOYBEAN MEALQ2

UREAQ2

Abstract

Four ruminally-cannulated HOLSTEIN COWS were used in a 4×4 Latin square changeover design within periods of 21 days to evaluate effects of feeding frequency of different sources of rumen degradable nitrogen on total tract digestibility of nutrients, feeding behaviors, rumen and blood metabolites of HOLSTEIN COWS. Treatments were: 1) control diet which was as total mixed ration (TMR) offered once daily in the morning (08:00), 2) control diet in which a part of its soybean was offered at 19:00, 3) control diet in which a part of its UREA was offered at 19:00 and 4) control diet in which a part of its FISH MEAL was offered at 19:00. Rumination time increased in cows fed twice daily with protein sources (P<0.05). Total tract digestibility of dry matter and organic matter were higher in cows received UREA at the evening time. Total tract digestibility of neutral detergent fiber increased with feeding all sources of protein at the evening time (P<0.05). Molar proportion of volatile fatty acids, rumen pH and rumen ammonia concentration were not affected by feeding time of protein sources. The results indicated that increasing delivery of rumen degradable nitrogen sources improved dry matter and fiber digestibility and chewing activity of non-lactating Holstein dairy cows.

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APA: Copy

HAJILOU, MOUSTAFA, MIRZAEI ALAMOUTI, HAMID REZA, GHANJKHANLOU, MEHDI, & AMANLOU, HAMID. (2016). EFFECT OF FEEDING FREQUENCY OF PROTEIN SOURCES ON FIBER DIGESTIBILITY, FEEDING BEHAVIORS AND RUMEN METABOLITES OF HOLSTEIN COWS. JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE), 17(2), 347-358. SID. https://sid.ir/paper/209086/en

Vancouver: Copy

HAJILOU MOUSTAFA, MIRZAEI ALAMOUTI HAMID REZA, GHANJKHANLOU MEHDI, AMANLOU HAMID. EFFECT OF FEEDING FREQUENCY OF PROTEIN SOURCES ON FIBER DIGESTIBILITY, FEEDING BEHAVIORS AND RUMEN METABOLITES OF HOLSTEIN COWS. JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE)[Internet]. 2016;17(2):347-358. Available from: https://sid.ir/paper/209086/en

IEEE: Copy

MOUSTAFA HAJILOU, HAMID REZA MIRZAEI ALAMOUTI, MEHDI GHANJKHANLOU, and HAMID AMANLOU, “EFFECT OF FEEDING FREQUENCY OF PROTEIN SOURCES ON FIBER DIGESTIBILITY, FEEDING BEHAVIORS AND RUMEN METABOLITES OF HOLSTEIN COWS,” JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE), vol. 17, no. 2, pp. 347–358, 2016, [Online]. Available: https://sid.ir/paper/209086/en

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