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Milk performance of dairy cows supplemented with rape seed oil, peanut oil, and sunflower seed oil

Author

Listed:
  • X.J. Dai

    (China Jiliang University, Hangzhou, P. R. China)

  • C. Wang

    (Zhejiang Agriculture and Forestry University, Hangzhou, P.R. China)

  • Q. Zhu

    (Xiuzhou Municipal Bureau of Livestock Veterinary, Jiaxing, P.R. China)

Abstract

The objective of the study was to investigate the effects of supplementing different plant oils to the basal diet on milk yield and milk composition in mid-lactating dairy cows. Forty Chinese Holstein dairy cows averaging 120 days in milk (DIM) at the start of the experiment (body weight = 580 ± 18.2 kg; milk yield = 33.0 ± 2.00 kg/day) were used in a completely randomized block design. The animals were assigned to four dietary treatments according to DIM and milk yield, and supplemented with no oil (control), 2% rapeseed oil (RSO), 2% peanut oil (PNO) and 2% sunflower seed oil (SFO). Milk yield and milk composition (fat, protein, and lactose) were measured. Dry matter intake was similar in all treatments. The supplementation of plant oil increased milk yield, with the highest milk yield in RSO group. Percentages of milk fat, lactose, solids-not-fat and SCC were not affected by treatments except for an increase in milk protein content in oil supplemented groups. The fatty acid (FA) profile of milk was altered by fat supplementation. Feeding plant oils reduced the proportion of both short-chain (C4:0 to C12:0) and medium-chain (C14:0 to C16:1) fatty acids, and increased the proportion of long-chain (≥ C18:0) fatty acids in milk fat. The inclusion of vegetable oils increased the concentration of cis-9, trans-11 CLA. The cis-9, trans-11 CLA content in milk fat was higher from RSO to PNO and SFO was higher than the control. The TVA concentration was higher in the SFO diet, followed by PNO, RSO, and control diets. The results of this study indicated that linoleic acid was more effective in enhancing contents of TVA and CLA in milk fat than oleic acid. No significant effects of week and treatment by week interaction were found out in this study. Overall, feeding plant oils increased monounsaturated and polyunsaturated fatty acids and decreased saturated fatty acids in milk fat. In conclusion, dietary supplementation of RSO increases milk yield the most, while SFO enhances the cis-9, trans-11 CLA content in milk fat more effectively.

Suggested Citation

  • X.J. Dai & C. Wang & Q. Zhu, 2011. "Milk performance of dairy cows supplemented with rape seed oil, peanut oil, and sunflower seed oil," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(4), pages 181-191.
    • Handle: RePEc:caa:jnlcjs:v:56:y:2011:i:4:id:1434-cjas
    DOI: 10.17221/1434-CJAS
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    References listed on IDEAS

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    1. A. Veselý & L. Křížová & J. Třináctý & S. Hadrová & M. Navrátilová & I. Herzig & M. Fišera, 2009. "Changes in fatty acid profile and iodine content in milk as influenced by the inclusion of extruded rapeseed cake in the diet of dairy cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 54(5), pages 201-209.
    2. Z. Váradyová & S. Kišidayová & A. Lauková & D. Jalč, 2010. "Influence of inoculated maize silage and sunflower oil on the in vitro fermentation, ciliate population and fatty acid outputs in the rumen fluid collected from sheep," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(3), pages 105-115.
    3. Z.L. Liu & D.P. Yang & P. Chen & S.B. Lin & X.Y. Jiang & W.S. Zhao & J.M. Li & W.X. Dong, 2008. "Effect of dietary sources of roasted oilseeds on blood parameters and milk fatty acid composition," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(5), pages 219-226.
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    1. Petra Hovorková & Klára Laloučková & Eva Skřivanová, 2018. "Determination of in vitro antibacterial activity of plant oils containing medium-chain fatty acids against Gram-positive pathogenic and gut commensal bacteria," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 63(3), pages 119-125.
    2. Renáta TOUŠOVÁ & Luděk STÁDNÍK & Jaromír DUCHÁČEK, 2013. "Effects of season and time of milking on spontaneous and induced lipolysis in bovine milk fat," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 31(1), pages 20-26.

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