Evaluation of Udder and Teat Traits in Relation to Somatic cell Count in Sokoto Gudali and White Fulani cows in Nigeria
This study was carried out to evaluate udder and teat traits in relation to somatic cell count in White Fulani (WF) and Sokoto Gudali (SG) cows which was carried out at dairy unit of National Animal Production Research Institute (NAPRI), Shika. The morphological traits of udder measured were length, width, circumference, depth, cleft shapes (Bowl, irregular, Rounded, Trough and Pendulous). The teat traits were length, Distance of the tip to the ground, teat diameter and shape (Bottle, conical and cylindrical). Milk was collected from 33 cows (20 WF and 13 SG cows). Data was collected in the last trimester, 5 and 72 days postpartum for udder and teat traits on two breeds of cows. Analysis of variance showed that there is significant differences between the breeds for all traits.WF had significantly (P<0.05) higher values than SG for all the udder and teat traits measured. The reproductive periods also showed significant differences for most traits except Teat Diameter (TDT). Cows with irregular udder shapes were highest in both breeds with higher percentage of occurrence in SG (61.54%) compared to WF (60 %). On the other hand, cows with conical shaped teat had 76.92% for SG and 75% for WF. Bottle shaped teats were lower in distribution for SG and cylindrical for WF. There is significant difference (P< 0.05) in SCC between WF and SG cows of age group 6 to 10 years. In conclusion Udder and teats traits would encourage negative selection against mastitis in breeding programmes, and in turn reduce the incidence of mastitis in future population and improve milk production.
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