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Full-Text Articles in Medicine and Health Sciences
Correlation Between The Milk Vein Internal Diameter Surface Andmilk Yield In Simmental Cows, Damjan Gracner, Gerard Gilligan, Nickholas Garvey, Luis Moreira, Patricia Harvey, Amanda Tierney, Robert Zobel
Correlation Between The Milk Vein Internal Diameter Surface Andmilk Yield In Simmental Cows, Damjan Gracner, Gerard Gilligan, Nickholas Garvey, Luis Moreira, Patricia Harvey, Amanda Tierney, Robert Zobel
Turkish Journal of Veterinary & Animal Sciences
It is known that milk production is directly correlated with the blood flow through the mammary gland, and milk veins drain approximately 90% of the total blood passing through this organ. The aim of the present study was to determine the relationship between milk vein internal diameter surface and milk production in Simmental cows. The milk vein internal diameter was measured by ultrasonography in heifers during the 2nd month of the first gravidity, and again on day 50 following the second calving. After the application of exclusion criteria, the internal vein diameter surface area was mathematically calculated (mm2) for a …
Effects Of Dystocia On Milk Production And Reproduction In Subsequent Lactation In A Turkish Holstein Herd, İbrahi̇m Kaya, Can Uzmay, Tarik Ayyilmaz
Effects Of Dystocia On Milk Production And Reproduction In Subsequent Lactation In A Turkish Holstein Herd, İbrahi̇m Kaya, Can Uzmay, Tarik Ayyilmaz
Turkish Journal of Veterinary & Animal Sciences
The study investigated effects of dystocia on milk production, reproduction, calf loss, and cow culling in a Turkish Holstein herd at the Agricultural Faculty, Ege University, İzmir, Turkey. Data were from 653 single calvings between 2006 and 2010. Considering a greater dystocia incidence in primiparous cows, data was divided in two; 223 primiparous and 430 multiparous calvings scored on a 1-to-5 scale. Scores were categorized into no dystocia and dystocia. With few related observations, all multiparous data were excluded since sample size for multiparous dystocic calvings was too small to make reliable estimates. Milk yields, days to first service, and …