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Full-Text Articles in Medicine and Health Sciences
Investigation On Blood Plasma And Hair Copper Levels In Clinically Healthy Cattle In Elazig And It's Vicinity, İbrahi̇m Çi̇mtay, Ali̇ Ölçücü
Investigation On Blood Plasma And Hair Copper Levels In Clinically Healthy Cattle In Elazig And It's Vicinity, İbrahi̇m Çi̇mtay, Ali̇ Ölçücü
Turkish Journal of Veterinary & Animal Sciences
The objective of this study was to determine blood plasma and hair copper levels in clinicially healthy Swiss Brown and Holstein cows. This study was performed on 50 cows, 3-6 years old. Blood and hair samples were collected in December, March, June and September. Mean plasma copper levels in December, March, June and September were 68.23±2.62, 44.58±1.78, 52.79±2.15 and 52.76±2.59 mg/dl respectively. Also mean hair copper levels were 5.78±0.22, 5.45±0.15, 5.25±0.11 and 5.77±0.15 ppm respectively. The levels of plasma and hair copper showed great differences in regard to the months of study and races, but there were no significant differences …
Estimation Of Milk Yield Losses From Subclinical Mastitis In Dairy Cows, Cengi̇z Yalçin, Yavuz Cevger, Kenan Türkyilmaz, Gül Uysal
Estimation Of Milk Yield Losses From Subclinical Mastitis In Dairy Cows, Cengi̇z Yalçin, Yavuz Cevger, Kenan Türkyilmaz, Gül Uysal
Turkish Journal of Veterinary & Animal Sciences
Multiple regression analysis was utililised to estimate the relationship between somatic cell counts (SCC) and milk yield using the data of 1687 quarter milk samples collected weekly from 20 cows at the Dairy Unit of A.U. Veterinary Faculty's Research Farm between May and October 1998. The findings of this study supported the results of similar previous studies on that there is a negative relationship between SCC and milk yield, the relationship between milk yield and lnSCC (natural logarithmic form) is not linear. It was found that milk yield loss from SCC vary considerably according to the level of SCC. The …