Dr. M. M. TrivediPATEL, Yogesh G.2017-02-182017-02-182014http://krishikosh.egranth.ac.in/handle/1/5810001571The 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).enlivestockstudyThesis