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Information Journal Paper

Title

EFFECT OF DIFFERENT LEVELS OF MONENSIN IN DIETS CONTAINING WHOLE COTTONSEED ON MILK PRODUCTION AND COMPOSITION OF LACTATING DAIRY COWS

Pages

  206-213

Abstract

 The objective of this study was to determine the effects of feeding different levels of MONENSIN on feed intake, milk production and composition, and milk fatty acid profile in lactating Holstein cows. Four multiparous cows averaging 517 ± 47 (SD) kg in body weight and 101 ± 19.8 (SD) days in milk were housed individually in tie-stalls. The study was conducted as a 4 × 4 Latin square design for four periods (14-d for adaptation and 7-d for sampling). Cows were offered four dietary treatments (0, 10, 20, or 30 mg of MONENSIN/kg of DM) as total mixed ration, twice daily. Dry matter (DM) intake was similar among treatments. MONENSIN supplementation significantly increased (P<0.05) milk yield and 4% fat corrected milk (FCM). Milk fat and protein percentages were not affected by MONENSIN supplementation, but fat yield was increased. MONENSIN reduced the percentage of the short-chain and saturated fatty acids in milk fat, but had no effect on the percentages of medium- and long-chain fatty acids. MONENSIN supplementation increased (P<0.05) unsaturated fatty acids concentrations in milk fat. Based on the results of this study, feeding MONENSIN was effective in inhibiting the biohydrogenation of unsaturated fatty acids in the rumen, and consequently increased the percentage of unsaturated fatty acids in milk fat, which improves the health characteristics of milk for human consumption.

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    APA: Copy

    FATAHNIA, F., ROUGHANI, E., HOSSEINI, A.R., DARMANI KOUHI, H., & ZAMIRI, M.J.. (2010). EFFECT OF DIFFERENT LEVELS OF MONENSIN IN DIETS CONTAINING WHOLE COTTONSEED ON MILK PRODUCTION AND COMPOSITION OF LACTATING DAIRY COWS. IRANIAN JOURNAL OF VETERINARY RESEARCH (IJVR), 11(3 (32)), 206-213. SID. https://sid.ir/paper/559150/en

    Vancouver: Copy

    FATAHNIA F., ROUGHANI E., HOSSEINI A.R., DARMANI KOUHI H., ZAMIRI M.J.. EFFECT OF DIFFERENT LEVELS OF MONENSIN IN DIETS CONTAINING WHOLE COTTONSEED ON MILK PRODUCTION AND COMPOSITION OF LACTATING DAIRY COWS. IRANIAN JOURNAL OF VETERINARY RESEARCH (IJVR)[Internet]. 2010;11(3 (32)):206-213. Available from: https://sid.ir/paper/559150/en

    IEEE: Copy

    F. FATAHNIA, E. ROUGHANI, A.R. HOSSEINI, H. DARMANI KOUHI, and M.J. ZAMIRI, “EFFECT OF DIFFERENT LEVELS OF MONENSIN IN DIETS CONTAINING WHOLE COTTONSEED ON MILK PRODUCTION AND COMPOSITION OF LACTATING DAIRY COWS,” IRANIAN JOURNAL OF VETERINARY RESEARCH (IJVR), vol. 11, no. 3 (32), pp. 206–213, 2010, [Online]. Available: https://sid.ir/paper/559150/en

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