Relationship Between Some Teat and Body Measurements of Holstein Cows and Sub-Clinical Mastitis and Milk Yield

The objective of this study was to determine the relationship between some teat and body measurements of lactating cows and sub-clinical mastitis and milk yield. The material was consisted of 125 Holstein cows. The teat diameter, length and height from floor surface, wither height, hip height and chest girth of cows were measured. The cows were grouped according to Californian Mastitis Test (CMT) score as positive (CMT Score: 2-4) and negative (CMT Score: 0 and 1) and also according to the 305 days corrected milk yield as low (5000 kg) and high (>5000 kg) milk production. The significant differences were found between subclinical mastitis groups in terms of teat height, left and right hind teat diameter and right hind teat length (p<0.05). About 305 days corrected milk yield means of positive and negative sub-clinical mastitis groups were 5185.91 +/- 180.81 and 4994.94 +/- 210.80 kg, respectively. There were no statistically significant differences with regard to milk yield and body measurement between sub-clinical mastitis groups. There were no significant differences between milk yield groups with regard to teat measurements except for right front and hind diameter means (p<0.05). The means of wither height, hip height and chest girth according to low and high milk yield groups were found significant (p<0.001).