Impact of the diet with rapeseed and calcium salts on productivity and fatty acid composition of cow milk fat

new site

This site is no longer updated!
The new website of the magazine is located at https://visnyk.lnup.edu.ua/

 

Visnyk LNAU: Agronomy 2020 №24: 203-206

Impact of the diet with rapeseed and calcium salts on productivity and fatty acid composition of cow milk fat

S. Pavkovych, Candidate of Agricultural Sciences
ORCID ID: 0000-0002-0844-3071
Lviv National Agrarian University
S. Vovk, Doctor of Biological Sciences
ORCID ID: 0000-001-8387-1343
Institute of Agriculture of the Carpathian region
V. Balkovskyi, Candidate of Agricultural Sciences
ORCID ID: 0000-0002-3995-1909
Lviv National Agrarian University
N. Ohorodnyk, Doctor of veterinary Sciences
ORCID ID: 0000-0002-7428-9973
Institute of Agriculture of the Carpathian region
M. Ivankiv, Candidate of Agricultural Sciences
ORCID ID: 0000-0002-4911-2877
Lviv National Agrarian University

https://doi.org/10.31734/agronomy2020.01.203

Annotation

The article presents results of the research on impact of milking cows feeding with ground seed of strapless and low-gluconate winter variety of rape and calcium salts of fatty acids, produced on the base of rapeseed oil, on milk productivity and fatty acid composition of milk.

Cow milk is one of the most wholesome food products due to its chemical composition. However, its high content of fatty acids, which are the factors of the increased risk of cardio-vascular diseases, causes reduction of milk consumption by people. Moreover, the content of milk fat can be influenced by the diet of cows.

The experiments were conducted on the lactating cows of the Ukrainian black-spotted milk breed during 30 days in the winter stall-feeding period. The animals were divided into three groups by 5 cows in each according to the principle of analogues.

The research argues that use of rapeseed in the diet of milking cows increases milk yield, as well as the share of its fat, protein and lactose. It secures obtaining of a larger daily amount of the mentioned nutrients as compared to the animals, which are not fed with fatty supplements.

Feeding of cows with calcium salts of fatty acids, produced on the base of rapeseed oil, increases the milk yield and its quality indices as compared to the animals, fed with rapeseed.

It is determined that inclusion of rapeseed in the diet of cows reduces the content of myristic, palmitic, palmitooleic, С14-С16 and saturated fatty acids, whereas the share of stearin, oleic, linoleic, linolenic, С18 and unsaturated fatty acids increases in the composition of cow milk.

Feeding of animals with calcium salts of rapeseed oil increased the share of unsaturated and reduced the amount of saturated fatty acids as compared to the cows, which were fed with rapeseed.

Key words

rapeseed, calcium salts of fatty acids, lactating cows, milk production, fatty acid content

Full text

pdf

Link

  1. Canola oil in lactating dairy cow diets reduces milk saturated fatty acids and improves its omega-3 and oleic fatty acid content / K. C. Welter et al. PLoS ONE. 2016. Vol. 11 (3). Р. 16. https://doi.org/10.1371/journal.pone.0151876 
  2. Dietary manipulations to alter milk fat composition / А. Singh et al. J. Entomology and Zoology Studies. 2018. Vol. 6 (2). P. 176–181.
  3. Effect of unsaturated fatty acid supplementation on digestion, metabolism and nutrient balance in dairy cows during the transition period and early lactation / F.P. Renno et al. R. Bras. Zootec. 2014. Vol. 43, № 4. P. 212–223. https://doi.org/10.1590/S1516-35982014000400008 
  4. Influence of ruminal biohydrogenation on the feeding value of fat in finishing diets for feedlot cattle / R.A. Zinn et al. J. Anim. Sci. 2000. Vol. 78, № 7. P. 1738–1746. https://doi.org/10.2527/2000.7871738x 
  5. Kurko V. I. Gas-chromatographic analysis of food products. Kyiv: Urozhaj, 1965. Р. 65–69.
  6. Oleic acid stimulates complete oxidation of fatty acids through protein kinase A-dependent activation of SIRT1-PGC1α complex / J. H. Lim et al. J. Biol. Chem. 2013. Vol. 288. P. 7117–7126. https://doi.org/10.1074/jbc.M112.415729 
  7. Pavkovych S., Vovk S., Kruzhel B. Protected lipids and fatty acids in cattle feed rations. Acta Sci. Pol. Zootechnica. 2015. 14 (3). P. 3–14.
  8. Petit H. V., Côrtes C. Milk production and composition, milk fatty acid profile, and blood composition of dairy cows fed whole or ground flaxseed in the first half of lactation. Anim. Feed Sci. Technol. 2010. Vol. 158. P. 36–43. https://doi.org/10.1016/j.anifeedsci.2010.03.013 
  9. Reduced asthma symptoms with n3 fatty acid ingestion are related to 5-series leukotriene production / K. S. Broughton et al. Amer. J. Clin. Nutr. 1997. Vol. 65. P. 1011–1017. https://doi.org/10.1093/ajcn/65.4.1011 
  10. Simopoulos A.P. Omega-6/Omega-3 essential fatty acid ratio and chronic diseases. Food Res. Intern. 2004. Vol. 20. P. 77–90. https://doi.org/10.1081/FRI-120028831 
  11. Vovk S. O., Pavkovych S. Ya. Protected lipids and fatty acids in the diets of cattle. Journal of Agrarian Science. 2016. № 4. S. 48–51. https://doi.org/10.31073/agrovisnyk201604-11 
титулка Екон