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- Title
STATISTICAL INVESTIGATION ON STABLE LACTATION PERIOD OF JERSEY CROSS BREED.
- Authors
Thakur, Radhika; Gupta, R. K.; Thakur, Moneesh
- Abstract
Data on milk yield of 4 Jersey cross cows were taken from Dairy Farm of Department of Silviculture and Agroforestry, Dr. Yashwant Singh Parmar University of Horticulture and Forestry Nauni- Solan, Himachal Pradesh from 1978-2014. Data were used on stability analysis of milk yield of Jersey cross cows to find out stable lactation period. Finlay and Wilkinson (1963) considered the regression coefficient as the best measure of stability. Therefore, Finlay and Wilkinson's Model was used to identify the stable lactation period for milk yield. The interaction was found to be significant for the character. In Jersey cross cow, maximum milk yield (264.69 litres) and minimum milk yield (200.38 litres) were obtained by using Finlay and Wilkinson's Model. Lactation fifth of Jersey cross cow has regression coefficient bi was equal to one and mean was high than overall mean. Hence, the fifth lactation period was found to be stable.
- Subjects
JERSEY (Channel Islands); LACTATION in cattle; MILK yield; LACTATION; DAIRY farming; FORESTS &; forestry; AGROFORESTRY; COWS
- Publication
Veterinary Practitioner, 2019, Vol 20, Issue 2, p251
- ISSN
0972-4036
- Publication type
Article