SERUM AND MILK COMPONENTS IN AMRIT MAHAL, HOLSTEIN FRIESIAN CROSSBRED AND JERSEY CROSSBRED COWS
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Date
2018-09
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KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR
Abstract
The present study was undertaken in Amrit Mahal (Group I), Holstein Friesian
crossbred (Group II) and Jersey crossbred (Group III) cows at third lactation to assess
blood metabolic profile and milk components profile. A total of eighteen cows with six
cows in each group were selected randomly from different dairy farms. The blood and
milk samples were collected during fourth, eighth and twelfth weeks of lactation. The
serum samples were subjected for the estimation of the levels of glucose, total protein,
albumin, globulin, A/G ratio, urea nitrogen, total cholesterol, triglycerides, calcium,
phosphorus, magnesium, sodium, potassium and chloride. The milk components such as
percentage of lactose, fat, proteins and solids-not-fat were measured using ultrasonic
lactoscan milk analyser. The pH of milk was measured using digital pH meter. The daily
milk yield was also recorded. Serum components such as glucose, total protein and
globulin were significantly higher during fourth week compared to twelfth week of
lactation in Amrit Mahal cows. The serum lipid and mineral profile were higher in Amrit
Mahal cows compared to crossbred cows. The milk profile of different parameters such
as lactose, protein, fat and SNF were significantly higher in Amrit Mahal cows compared
to crossbred cows. Whereas, milk yield and pH was higher in crossbred cows compared
to Amrit Mahal cows. It was concluded that the levels of some of the serum and milk
components were higher in Amrit Mahal cows compared to Holstein Friesian crossbred
and Jersey crossbred cows. Therefore, Amrit Mahal cows should be conserved for further
cross breeding programmes.