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Full-Text Articles in Medicine and Health Sciences
Altering The Lactation Cycle: Is A 60-Day Dry Period Too Long?, Mehmet Şükrü Gülay
Altering The Lactation Cycle: Is A 60-Day Dry Period Too Long?, Mehmet Şükrü Gülay
Turkish Journal of Veterinary & Animal Sciences
The most critical problem for the evaluation of different dry period lengths is the relationship between days dry and subsequent milk production. It is assumed that when a cow is dried off, the loss in the current lactation will be compensated for by greater milk production during the following lactation. However, the process of parturition and initiation of lactation are extremely important events and they are associated with many problems that may result in removal of the individual cow from the herd or in greatly reduced milk production, especially early in the lactation. Therefore, identification of the shortest possible dry …
Use Of Bovine Somatotropin In The Management Of Transition Dairy Cows, Mehmet Şükrü Gülay, Fatma Şefi̇ka Hati̇poğlu
Use Of Bovine Somatotropin In The Management Of Transition Dairy Cows, Mehmet Şükrü Gülay, Fatma Şefi̇ka Hati̇poğlu
Turkish Journal of Veterinary & Animal Sciences
The major objectives of an efficient dairy farm operation include a successful lactation period, high milk yield relative to the feed costs, reproductive competence, and finally the returning of the cow to the body condition score (BCS) that existed before lactation so she will be prepared for another lactation. In cows a milk yield response to bovine somatotropin (bST) treatments at 60 d after parturition has been well studied and fully documented. Milk production response to bST occurs because of its known effects on partitioning of nutrients and because a greater proportion of the nutrient intake is used for milk …
Changes In Chemical And Mineral Contents Of Awassi Ewes’ Milk During Lactation, Nuray Şahan, Di̇lek Say, Ali̇ Kaçar
Changes In Chemical And Mineral Contents Of Awassi Ewes’ Milk During Lactation, Nuray Şahan, Di̇lek Say, Ali̇ Kaçar
Turkish Journal of Veterinary & Animal Sciences
This study aimed to determine the chemical composition and mineral contents of Awassi ewes’ milk during lactation. Morning milks of 150 Awassi ewes were taken once a week during 18 weeks of lactation. Mean values obtained from analyses of the ewes’ milk samples were 17.54% ± 1.35 for dry matter; 6.61% ± 1.33 for fat; 10.93% ± 0.44 for non-fat dry matter; 5.68% ± 0.48 for protein; 4.34% ± 0.27 for lactose and 99.05 ± 11.63 kcal/100 g for energy value; 0.149% ± 0.008 for titratable acidity; 6.72 ± 0.42 for pH; and 1.0334 ± 0.001 g/cm^3 for specific gravity. …