The relationship between udder conformation and milk quantity and quality in Iraqi Awassi ewes

Abstract

The study aimed to determine the udder measurements and type, test-day (TD) milk yield, milk composition, somatic cell count (SCC) and total bacterial count, and to evaluate the relationships between these characteristics in Iraqi Awassi ewes. Animal material consisted of 50 Awassi ewes, aged 1 to 4 years, in lactation period. TD milk yield was recorded fortnightly from the second week after parturition for three times. Milk samples were analyzed for fat, solid non-fat, protein, and lactose content. Udder morphological traits recorded in the study were udder circumference, udder depth, teat diameter, teat length, distance between teats, udder height and teat height. Total bacterial count and SCC in milk samples were determined. Udder type had no significant effect on TD milk yield, SCC, and milk composition traits. It was determined that there were positive and negative but rather weak correlations between udder measurements and milk composition traits. Udder depth was statistically significant correlated with SCC (p