FEATURES OF LACTATION PERIOD OF COWS OF DIFFERENT BREEDS AND CO-BREEDS

Authors

  • U.Т.Rakhimov Samarkand State University Of Veterinary Medicine Livestock And Biotechnologies
  • E.G.Pardaev Samarkand State University Of Veterinary Medicine Livestock And Biotechnologies
  • M.B.Esnaev Samarkand State University Of Veterinary Medicine Livestock And Biotechnologies
  • Z. O. Saydaliyeva Samarkand State University Of Veterinary Medicine Livestock And Biotechnologies
  • R.X. Mirzayev Samarkand State University Of Veterinary Medicine Livestock And Biotechnologies
  • A. A. Masharipov Samarkand State University Of Veterinary Medicine Livestock And Biotechnologies

Keywords:

Productivity, milk yielding, capacity ratio

Abstract

This article provides materials about the lactation period of the first-calf cows of different breeds and co-breeds.

References

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N.Narzullaev, U.Salimova.The productivity of cows of different breeds. Journal of Uzbekistan’s agriculture. // 2004. Publication №2. Page 17.

M.H.Dosmuhamedova. Conditions of tolerance to heat and milk productivity of cows with different genotypes of Holstein breeds.//Zooveterinary 2008. Publication №9,pages 30-31.

A.K.Kakharov, M.K.Narbaeva, Sh.E.Kurbonova, O.A.Mahmadiyorov.Zoocultural and economic efficiency of animal husbandry in production of Holstein breeds. // “Zooveterinary” 2013. Publication № 1. Pages 46-47.

A.K.Каkhаrоvand others. The milk productivity of Black and white Holstein breed cows. // “Zooveterinary” 2015. Publication № 6. Pages 30-32.

J.N. Hujamov. The measures to increase milk productivity of cows of different breeds and co-breeds. // Dissertation for the degree of D.Sc. in agricultural sciences. Samarkand 2019, pages 12-14.

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Published

2022-05-31

Issue

Vol. 10 No. 5 (2022): GIIRJ

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.