Study on Productive, Reproductive Performance and Milk Composition of Gir Cows under Semi-Arid Conditions
Loading...
Date
2022
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The present study was conducted at Dairy Farm of S.K.N. College
of Agriculture, Jobner to assess the productive, reproductive performance
and milk composition of Gir cows under semi-arid conditions. The data of
33 Gir cows those had completed three consecutive lactations was
collected from the records maintained at college Dairy Farm over a period
of Five years (2017 to 2022) for studying productive and reproductive
performance. A total of 12 Gir cows which were in early lactation were
selected for studying milk composition. This study was conducted from
March 2022 to April 2022 with 216 milk samples from Gir cows. This herd
is being maintained at S.K.N. College of Agriculture, Jobner Dairy Farm
under semi-arid condition. Productive and reproductive performances
were analyzed to determine, total lactation milk yield, standard milk yield,
lactation length, dry period, service period, gestation period and calving
interval during second, third and fourth lactation.
The overall means obtained for total lactation milk yield, standard
milk yield (305-DMY), lactation length, dry period, service period, gestation
period and calving interval in Gir cows were 1833.45±84.91 litres,
2095.81±75.58 litres, 266.04±6.69 days, 128.94±7.16 days, 113.36±7.72
days and 281.53±0.35 days 394.98±7.78 days, respectively