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http://hdl.handle.net/11607/2439| Title: | Effects of calving season on milk yield of holstein cows raised at Dalaman state farm in Turkey |
| Other Titles: | Dalaman tarım işletmesinde yetiştirilen siyah-alacalarda buzağılama mevsiminin süt verimine etkisi |
| Authors: | Akçay, H. İlaslan, M. Koç, A. Adnan Menderes University, Faculty of Agriculture, Animal Science Department |
| Keywords: | Calving Season Milk Yield Holstein Buzağılama Mevsimi Süt Verimi Siyah-Alaca |
| Issue Date: | 2007 |
| Publisher: | Adnan Menderes Üniversitesi Ziraat Fakültesi Dergisi |
| Citation: | Akçay, H., İlaslan, M., Koç, A. (2007). Effects of calving season on milk yield of holstein cows raised at Dalaman state farm in Turkey. Adnan Menderes Üniversitesi Ziraat Fakültesi Dergisi, 4(1-2), 59-61. |
| Abstract: | Data of 866 lactations collected from 251 cows raised at Dalaman State Farm in Mugla province between 1989
and 1996 were analyzed. Two calving seasons were determined on data set based on average monthly air
temperature. These are the first calving season (November 1 - April 30 ) which is within the comfort zone for
cows, and the second calving season (May 1 - October 31 ). Milk yield, calving year, lactation number and
calving season were evaluated. The effect of lactation number (p<0.01), calving year (p<0.01) and, calving
season (p<0.01) on 305-d milk yield were found statistically significant. The least-square means and standard
errors of milk yield for the first and the second calving season were 7493.54±70.29 kg and 7180.63±81.08 kg,
respectively. Mugla Ili Dalaman Tarım Isletmesinde 1989 1996 yılları arasında yetistirilen 251 hayvana iliskin toplam 866 laktasyon verileri toplanarak degerlendirilmistir.Aylık ortalama hava sıcaklıkları dikkate alınarak iki buzagılama mevsimi olusturulmustur. Bunlar, konfor sınırları içerisinde olan 1. buzagılama mevsimi (01 Kasım 30 Nisan) ve 2. buzagılama (01 Mayıs 31 Ekim) mevsimidir. Süt verimleri, buzagılama yılı, laktasyon sırası ve buzagılama mevsimi degerlendirilmistir. Yapılan degerlendirmede 305 günlük süt verimine laktasyon sırası (p<0.01), buzagılama yılı (p<0.01) ve buzagılama mevsiminin etkisi (p<0.01) önemli bulunmustur. Süt verimine iliskin 1. ve 2. buzagılama mevsiminin en küçük kareler ortalamaları ve standart hataları sırasıyla 7493.54±70.29 kg ve 7180.63±81.08 kg olarak belirlenmistir. |
| URI: | http://hdl.handle.net/11607/2439 |
| Appears in Collections: | 2007 Cilt 4 Sayı 1-2 |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| hakcay.pdf | Makale Dosyası | 60.35 kB | Adobe PDF | View/Open |
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