Factors associated with the colostrum quality of dairy cows in the Menemen district of İzmir provience
Küçük Resim Yok
Tarih
2024
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This study aimed to determine the factors affecting the colostrum quality in dairy farms located in the Menemen district of İzmir province. A total of 61 colostrum samples were collected in the first 6 hours after birth from six dairy farms having more than 100 head. The colostrum obtained from each cow was measured for density using a colostrometer. It was found that 40 of the colostrum samples were of good quality, 16 were of medium quality, and 5 were of poor quality. The current study identified a statistically significant effect of herd size (P<0.05) on colostrum quality, with higher quality observed in farms with a herd size of less than 250 head. Parity and calving season did not affect colostrum quality in this study. Simmental cows had better colostrum quality than Holstein and Jersey cows. The specific gravity of Jersey colostrum was lower (-23 g/L) in summer compared to other seasons, whereas that of Simmental was higher. Therefore, it can be concluded that Simmental and Holstein cows are more suitable for profitable dairy farming in this region.
Açıklama
Anahtar Kelimeler
Herd size, dairy cows, calving season, breed, colostrum quality
