STUDIES OF ASSOCIATION BETWEEN MORPHOMETRIC CHARACTERISTICS OF UDDER AND TEATS AND INCIDENCES OF SUB-CLINICAL MASTITIS IN CROSSBRED COWS MAINTAINED ON DAIRY FARMS IN ANAND DISTRICT
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Date
2014
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Publisher
AAU, Anand
Abstract
The present study was carried out in Anand District of Gujarat state on
200 lactating crossbred cows of different parities and at different stages of lactation
from 13 different dairy farms. The objective was to study the biometry and different
shape of udder and teats and their association with incidence of sub-clinical mastitis.
Biometry of udder (length, width and depth) and teat (length and diameter),
morphology of udder (trough/round/goaty/pendulous shape) and teat
(cylindrical/funnel/bottle/pear), test day milk yield, distance between teat end to floor,
body condition scores (1 to 5 scale), temperature humidity index in cow sheds, udder
and leg hygiene scores (1 to 5 scale), ideal milking practices score (1 to 10 scale) etc.
were studied. Milk samples were examined to detect subclinical mastitis through
California mastitis test. The pH of milk samples as well as somatic cell counts/ml of
milk were estimated using digital pH meter and Fossomatic minor cell counter. Data
were analyzed according to methods suggested by Snedecor and Cochran (1994).
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Keywords
livestock, study