Abstract
Assessment of optimum thermal humidity index for crossbred dairy cows in Dehradun district, Uttarakhand, India
Highlights
The native Indian cows are draft animals and are not economical due to low milk yield
High yielding cows shows a significant decrease (p
As THI rises from comfort zone to stress zone milk yield decreased by 30-40% and this loss in milk production is irreversible
Summary
The native Indian cows are draft animals and are not economical due to low milk yield. These cows have milk yield 700-1000 L of per lactation that is of 5-7 months. To boost milk production cross bred cattle of Holstein Friesian (HF) cows (above 75% of the exotic blood) are generally used. These cows have milk yield over on an average 5000 L per lactation. Summer follows the spring season from mid-April to June end. Monsoon starts after June and ends in October.
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