Western Siberia | Библиотека ELiS

Polynomial conjugate variability of traits of linear assessment of the exterior and milk yield of highly productive Holstein cattle

Submitted by Гость (not verified) on Tue, 11/05/2024 - 12:38

The conjugate variability of milk yield of 1243 first lactation cows with 18 linear exterior traits was analyzed. The research was carried out on the first-calf heifers of a highly productive subpopulation of Holstein cattle with milk yield of over 13000 kg per forage cow. The average productivity of the first-calf heifers for 305 days of lactation was 10093 kg of milk.

Agroclimatic resources of KhMAD-yugra region

Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45

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The authors made assessment of agroclimatic resources in KhMAO-Yugra based on observed meteorological data obtained from 53 meteorological posts over the period of2005-2016. It was found that the climate change on the territory of KhMAO has resulted in an increase of200°C in the sum of active temperatures (above the base growth that equals 10°C) over the past decade. These changes are caused by the prolonged growing season by 13-15 days. The average temperature of the hottest month has not been changed.