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EFFECT OF SOYBEANS AND PALM OIL ADDITION TO THE COWS DIETS ON MILK FATTY ACIDPROFILE

O. V. Hultiaieva¹, A.P. Petruk², O. V. Golubets³, I. V. Vudmaska¹, V. V. Vlizlo¹

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Effects of soybean and palm oil supplements on milk yields and fatty acids composition with considering intermediate products of unsaturated fatty acids hydrogenation were investigated. Fifteen multiparous Holstein cows in mid-lactation were assigned to groups of 5 each. Cows of control group fed (kg): alfalfa hay — 6; corn silage — 20; grass silage — 10; wheat — 3; corn — 2; soybean meal — 1; molasses — 2. In the diet of the 1st treated group, soybean meal was replaced by 1.5 kg of extruded soybeans. Diet of 2nd treated group cows was supplemented with 0.3 kg of palm oil. All diets were equivalent in contents of nutrients (except fat). Crude fat content in the diets was 0.70, 0.96 and 0.97 kg/cow/day, respectively. Treatment lasted2 months. Milk yield was recorded weekly for the duration of the study. The milk fatty acids methyl esters were then quantified by gas chromatography.

In the milk of cows fed diet with soybeans was found 2.2 times more of trans-11 18:1 (P<0.001) and 1.3 times more of cis-9,trans-11 18:2 (P<0.05) fatty acids compared to cows of control group.Trans-11 18:1 and cis-9,trans-11 18:2act in animal and human tissuesasantagonists of ω-6 fatty acids and, respectively, they are synergists of ω-3 fatty acids. Thus an increased content of these acids improves milk dietary value.

Cowsof bothtreatedgroups hadhighermilk proteinyield for40 gdaily(P<0.05).Milk fatyield wasincreasedonlyin cowsfed palm oil, it was 50ggreaterthan in control cows(P<0.05). Bothfatsupplementsincreased theaverage dailymilk yields. Milk yield of cowsfed diet with soybeans additionwas higher by 4 % (P<0.05), and in cows fed diet with palm oil milk yield grew to 7 % (P<0.05). Fat corrected milk yield wasincreasedonly incowsfed diet with palm oil addition(P<0.05). The results of the present study indicate a benefits of feeding cows by palm oil as dietary supplement.

Keywords: COWS, MILK, FATTY ACIDS, SOYBEANS, PALM OIL

1. Bauman D. E., Mather I. H., Wall R. J., Lock A. L. Major advances associated with the biosynthesis of milk. J. Dairy Sci., 2006, vol. 89, pp. 1235–1243. https://doi.org/10.3168/jds.S0022-0302(06)72192-0
2. Eastridge M. L. Major advances in applied dairy cattle nutrition. J. Dairy Sci., 2006, vol. 89, pp. 1311–1323. https://doi.org/10.3168/jds.S0022-0302(06)72199-3
3. Jenkins T. C., McGuire M. A. Major advances in nutrition: impact on milk composition. J. Dairy Sci., 2006, vol. 89, pp. 1302–1310. https://doi.org/10.3168/jds.S0022-0302(06)72198-1
4. Vudmaska I. V. Fats in cows nutrition. Livestock of Ukraine, 2006, no. 9, pp. 24–27. (in Ukrainian)
5. Nutrient Requirements of Dairy Cattle. National Research Council. 7^th revised edition. National Academy Press, Washington, DC, 2001, 408 p.
6. Russell J. B., Wallace R. J. Energy yielding and consuming reactions. In: The Rumen Microbial Ecosystem (ed. P. N. Hobson). NY, Elsevier Sci. Publ., 1988, pp. 185–216.
7. Bas P., Archimede H., Rouzeau A., Sauvant D. Fatty acid composition of mixed-rumen bacteria: Effect of concentration and type of forage. J. Dairy Sci., 2003, vol. 86, pp. 2940–2948. https://doi.org/10.3168/jds.S0022-0302(03)73891-0
8. Churruca I., Fernández-Quintela A., Portillo M. P. Conjugated linoleic acid isomers: differences in metabolism and biological effects. Biofactors, 2009, vol. 35 (1), pp. 105–111. https://doi.org/10.1002/biof.13
9. Dilzer A, Park Y. Implication of conjugated linoleic acid (CLA) in human health. Crit. Rev. Food Sci. Nutr., 2012, no. 52 (6), pp. 488–513.
10. Palmquist D. L., Lock A. L., Shingfield K. J., Bauman D. E. Biosynthesis of conjugated linoleic acid in ruminants and humans. Adv. Food Nutr. Res., 2005, vol. 50, pp. 179–217. https://doi.org/10.1016/S1043-4526(05)50006-8
11. Chouinard P. Y., Corneau L., Barbano D. M., Metzger L. E., Bauman D. E. Conjugated linoleic acids alter milk fatty acid composition and inhibit milk fat secretion in dairy cows. J. Nutr., 1999, vol. 129, pp. 1579–1584. https://doi.org/10.1093/jn/129.8.1579
12. Kennedy A., Martinez K., Schmidt S., Mandrup S., LaPoint K., McIntosh M. Antiobesity mechanisms of action of conjugated linoleic acid. J. Nutr. Biochem., 2010, vol. 21 (3), pp. 171–179. https://doi.org/10.1016/j.jnutbio.2009.08.003
13. An J. K., Kang C. W., Izumi Y., Kobayashi Y., Tanaka K. Effects of dietary fat sources on occurrences of conjugated linoleic acid and trans-fatty acids in rumen contents. AJAS, 2003, vol. 16, pp. 222–226.
14. Bell J. A., Griinari J. M., Kennelly J. J. Effect of safflower oil, flaxseed oil, monensin, and vitamin E on concentration of conjugated linoleic acid in bovine milk fat. J. Dairy Sci., 2006, vol. 89, no. 2, pp. 733–748. https://doi.org/10.3168/jds.S0022-0302(06)72135-X
15. Rego O. A, Alves S. P, Antunes L. M., Rosa H. J, Alfaia C. F, Prates J. A, Cabrita A. R., Fonseca A. J., Bessa R. J. Rumen biohydrogenation-derived fatty acids in milk fat from grazing dairy cows supplemented with rapeseed, sunflower, or linseed oils. J. Dairy Sci., 2009, vol. 92 (9), pp. 4530–4540. https://doi.org/10.3168/jds.2009-2060
16. Offer N. W., Marsden M., Phipps R. H. Effect of oil supplementation of a diet containing a high concentration of starch on levels of trans-fatty acids and conjugated linoleic acids in bovine milk. Anim. Sci., 2001, vol. 73, pp. 533–540. https://doi.org/10.1017/S1357729800058501
17. Zheng H. C., Liu J. X., Yao J. H., Yuan Q., Ye H. W., Ye J. A., Wu Y. M. Effects of dietary sources of vegetable oils on performance of high-yielding lactating cows and conjugated linoleic acids in milk. J Dairy Sci., 2005, vol. 88 (6), pp. 2037–2042. https://doi.org/10.3168/jds.S0022-0302(05)72880-0
18. Gebauer S. K., Chardigny J.-M., Jakobsen M. U., Lamarche B., Lock A. L., Proctor S. D., Baer D. J. Effects of ruminant trans fatty acids on cardiovascular disease and cancer: A comprehensive review of epidemiological, clinical, and mechanistic studies. Adv. Nutr., 2011, vol. 2, pp. 332–354. https://doi.org/10.3945/an.111.000521
19. McCrorie T. A., Keaveney E. M., Wallace J. M., Binns N., Livingstone M. B. Human health effects of conjugated linoleic acid from milk and supplements. Nutr. Res. Rev., 2011, vol. 24 (2), pp. 206–227. https://doi.org/10.1017/S0954422411000114
20. ISO 15884:2002 Milk fat. Preparation of fatty acid methyl esters.
21. ISO 15885:2002 Milk fat. Determination of fatty acid composition by gas-liquid chromatography.

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