Factors Influencing Livability of Simmenthal Rearers from Birth to Transition Perio

DOI

10.2991/agrosmart-18.2018.64How to use a DOI?

Keywords

Simmenthal, diseases and death of rearers, season, father bulls

Abstract

This research is aimed at studying the diseases and livability of Simmenthal rearers (Kursk oblast, 4011 animals were born in 2012…2017) in a herd with the yield of more than 7 thousand kg of milk per animal. It has been determined that 3.8% of rearers died in the span from birth until the age of 6 months, including the 1.7% death loss in the first nine weeks of life where 0.65% died in the second week, and 0.32% died in the third week of life. In the first six months of life, 8.8...12.9% more rearers died in summer and fall than in spring and winter. The percentage of diseases and death loss in the progeny by the Simmenthal bulls was different from that of the upgrades. For example, the Simmenthal progeny by the red Holstein bulls died along the entire 9 weeks of life, whilst the progeny of the Montbeliarde and Simmenthal bulls dies mostly in the first three weeks. The livability in the female calves is substantially lower than in the male calves.

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/).

Download article (PDF)

TY  - CONF
AU  - Galina Levina
AU  - Alexander Nazarenko
AU  - Lubove Khromova
AU  - Clement Tikhonov
PY  - 2018/12
DA  - 2018/12
TI  - Factors Influencing Livability of Simmenthal Rearers from Birth to Transition Perio
BT  - International scientific and practical conference "AgroSMART - Smart solutions for agriculture" (AgroSMART 2018)
PB  - Atlantis Press
SP  - 338
EP  - 343
SN  - 2352-5401
UR  - https://doi.org/10.2991/agrosmart-18.2018.64
DO  - 10.2991/agrosmart-18.2018.64
ID  - Levina2018/12
ER  -