GROWTH AND DAIRY PRODUCTIVITY OF COWS OF THE ORIGINS OF DIFFERENT LINES OF THE UKRAINIAN BLACK AND RIBBED DAIRY BREED
Keywords:
growth, live weight, hopes, milk fat content, different linesAbstract
The results of studying the growth and milk productivity of the first-born cows of different lines of the Ukrainian black-and-white dairy breed in the conditions of Lana Vinkovechchyna LLC are presented. The aim of the study was to examine the impact of growth and development of heifers during rearing on their subsequent productivity. For the study, two groups of cows of different lines were formed, according to the principle of pairs of analogues, 16 heads each. Analysis of live weight of experimental animals showed that at birth the largest live weight had heifers of the first group of 32.8 kg, they outperformed peers by 0.32 kg. At the age of 6 months, the animals of the second group had a live weight of 182.86 kg, they predominated the animals of the first group by 2.86 kg. At the age of 12 months, the largest live weight was shown by animals of the second group (290.7 kg), the advantage over animals of the first group was 1.57 kg. At the age of 18 months, the largest live weight showed animals of the first group (388.0 kg), they predominated animals of the second group by 1.71 kg. The difference between the groups was not significant and was within the statistical error. The cows of the first line of the experimental lines showed average productivity, so the cows of the Marshall line 2290977.95 showed hopes of 4456 kg, which is 225 kg more than the peers of the Chifa line 14277381 with an insignificant difference. It should also be noted the average coefficient of variability of this trait in cows of both experimental groups.
References
Antonenko A.F. (2000) Influence of live weight of heifers at birth on growth, development and milk productivity. Problems of zooengineering and veterinary medicine: Collection of scientific works. Kharkiv Zooveterinary Institute. - Vip. 6 (30). Part 1. Agricultural sciences. - Kharkiv. ((in Ukranian).
Pus I.V. (2006) Feeding and reproduction of livestock in Ukraine. Monograph. Institute of Animal Husbandry UAAS.- Kharkiv State Zooveterinary Academy Ministry of Agrarian Policy of Ukraine. - H.OOO "Contour". (in Ukranian).
Music L.I., Kos V.F., Zhmur A.Y. (2010) Productivity and breeding qualities of the Ukrainian black-spotted dairy breed depending on their weight at birth. Scientific Bulletin of LNUVMBT named after SZ Gzhytsky. Volume 12 № 2 (44) Part 3. Lviv. (in Ukranian).
Shuplik V.V., Kasprov R.V. (2017) Dairy productivity of Ukrainian black-and-white breed cows depending on their growth during the breeding period. Proceedings of the international scientificpractical conference March 14-16, 2017 Kamyanets-Podilsky (in Ukranian).
Kucher D.M. (2015) Breeding along the lines in the factory herd of Ukrainian black-and-white dairy breed. Visn. ZhNAEU, 2015. № 2 (52). (in Ukranian).
Petrenko I.P. (2005) To the theory of breeding along the lines in dairy farming. Breeding and genetics of animals. K .: Agrarian Science, (in Ukranian)
Salogub A.M., Khmelnitsky L.M. (2010) Economic and useful features of the first-born cows of the Ukrainian black-spotted dairy breed at different levels of heterogeneous selection. Bulletin of Sumy National University agrarian. University, (in Ukranian).
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors contributing to Public Policy and Administration agree to publish their articles under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License, allowing third parties to share their work (copy, distribute, transmit) and to adapt it, under the condition that the authors are given credit, and that in the event of reuse or distribution, the terms of this licence are made clear.
