Influence of Paratypic Factors on the Productivity of Holstein Cows

DOI

10.2991/agrosmart-18.2018.15How to use a DOI?

Keywords

Holstein cattle,service period, the age of first calving, live weight, correlation

Abstract

The article presents the dataset on the influence of paratypic factors on the productivity of Holstein cows. The best indicators of productivity were revealed in the cows with a live weight of 400-449 kg at the first successful conception. The milk yield amounted to 8863.2 with a fat mass fraction of 3.1% and a protein mass fraction of 4.5%. The animals calved for the first time at the age of 24-25 months showed the productivity of 8883.7 kg, which is 101.7 kg more than that showed by 22-23-mo-of-age cows and 628.5 kg less than the herd average. There is a positive correlation of 0.42 between the age at first calving and the mass fraction of fat. The analyzed 10% of livestock have a service period of less than 60 days, 24% - from 61 to 90 days, 26% - from 91 to 120 days.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - A. E. Belenkaya
PY  - 2018/12
DA  - 2018/12
TI  - Influence of Paratypic Factors on the Productivity of Holstein Cows
BT  - International scientific and practical conference "AgroSMART - Smart solutions for agriculture" (AgroSMART 2018)
PB  - Atlantis Press
SP  - 77
EP  - 80
SN  - 2352-5401
UR  - https://doi.org/10.2991/agrosmart-18.2018.15
DO  - 10.2991/agrosmart-18.2018.15
ID  - Belenkaya2018/12
ER  -