Effects of Supplementation of Cotton Seed Oil on ThePerformance and Methane Emission of Lactating Dairy Cows

Received: 30-10-2015

Accepted: 14-01-2016

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Issue: Vol. 14 No. 1 (2016)

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NÔNG HỌC

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Hiep, T., Dang, P., & Thang, C. (2024). Effects of Supplementation of Cotton Seed Oil on ThePerformance and Methane Emission of Lactating Dairy Cows. Vietnam Journal of Agricultural Sciences, 14(1), 28–35. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/255

Effects of Supplementation of Cotton Seed Oil on ThePerformance and Methane Emission of Lactating Dairy Cows

Tran Hiep (*) 1 , Pham Kim Dang 2 , Chu Manh Thang 3

  • 1 Khoa Chăn nuôi, Học viện Nông nghiệp Việt Nam
  • 2 Khoa Chăn nuôi,Học viện Nông nghiệp Việt Nam
  • 3 Viện Chăn nuôi quốc gia

    • Keywords

    Cotton seed oil, lactating dairy cows, methane emission

    Abstract


    The effects of supplementation of cotton seed oil on the nutrient intakes, milk yield, and methane emission of lactating dairy cows were studied inlactating Holstein Friesian cows from Feb. 2015 to Sept. 2015.Twenty four cows (average weight of 557.3 kg at 3-5th lactating months, 2-6th lactation cycles and milk yield of 22.13kg/cow/day)were allocated to a completely randomized design with 4 groups, each group withsix replications.The controlgroup received nosupplementation cotton seed oilbutbasaldietand the experimental groups, apart from basal diet, were supplemented cotton seed oil with 1.5% (KP1,5); 3.0% (KP3,0) and 4.5% (KP4,5). Thebasal diet included cornsilage, TRM feed and elephant grass (ad libitum). Results showed that the DM intake increased by 3.39- 6.82%, and ME intake increased by 6.25-14.43%in the groups fed cotton seed oil compared to the control group. Cotton seed oil supplements had no effect on DM digestibility at 1.5% but significantly reduced digestibility at the levels of 3.0-4.5%. The animals fed cotton seed oil supplements increased milk yield by 5.4-12.2% and reduced methane emission intensity calculated as L/kg FCM by 18,8- 37,9 (P> 0.05). As a result, the supplementation of cotton seed oil at 1.5-3,0% in the diet improved animal performance and environment efficiency.

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