Doğu Anadolu Tarımsal Araştırma Enstitüsü İşletmesi şartlarında yetiştirilen Doğu Anadolu kırmızısı esmer ve siyah alaca sığırların yaşama gücü ve ömür uzunluğu özellikleri
Livability and longevity of brown swiss, holstein fresian and Eastern Anatolian red cattle breeds raised in Eastern Anatolia Agricultural Research İnstitute conditions
- Tez No: 200854
- Danışmanlar: PROF. DR. ÖMER AKBULUT, PROF. DR. NACİ TÜZEMEN, PROF. DR. İBRAHİM ÖRÜNG
- Tez Türü: Yüksek Lisans
- Konular: Ziraat, Agriculture
- Anahtar Kelimeler: Cattle, sex rate, livability, longevity ii
- Yıl: 2007
- Dil: Türkçe
- Üniversite: Atatürk Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Zootekni Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 62
Özet
Bu 9ah§mada, Dogu Anadolu Tarimsal Arastirma Enstitiisii isletmesinde 1991-2004 yillan arasmda yetistirilen Esmer (E), Siyah Alaca (SA) ve Dogu Anadolu Kirmizisi (DAK) buzagilara ait kayitlar kullamlmistir. Cahsmia, bu buzagilarm yasama giiciinii, duvelerin sliriide kalma durumunu ve hayvanlarm ilk buzagilama yasi ile omiir uzunluklarini belirlemek amaciyla yapilmi§tir. Arastirmada 880 bas buzagimn kaydi degerlendirilmi§tir. Buzagilarm %56,1'i erkek %43,9'u di§idir. Buzagilarda erkek disi oram 1:1 beklenen orandan onemli diizeyde (P
Özet (Çeviri)
in this study, records of Brown Swiss (BS), Holstein Friesian (HF) and Eastern Anatolian Red (EAR) calves raised in Eastern Anatolia Agricultural Research Institute between 1991 and 2004 were used. The study was aimed to determine livability of the calves, herd stay of heifers, first calving age and longevity of the cows. In the research, records belonging 880 calves were used. 56.1 % and 43.9 % of the records belonged to male and female animals respectively. Sex ratio of the male calves was significantly different from. 1:1 ratio as expected. Mortality ratio of males and females between birth and 3 months of age, and between birth and 12 months of age were 12.6 %, 11.7 %, and 19.0, 16.3 % respectively. The ratios for BS, HF and EAR female cattle attained to 18 months of age were 65,7 %, 67.7 % and 77,0 % respectively. Culling rates of female animals due to death, slaughtering and selling were 67.7 %, 15.1 % and 17.0 % respectively. Approximately 44 % of breeding animals kept in the herd gave birth and 56 % of these cows did not calve, and were culled out. The ratios were 56.4 %, 65.7 % and 52.5% for BS, HF and EAR. heifers respectively. Average numbers of calves for BS, HF and EAR cows were 3.04±0.36, 2.3±0.30, 3.69±0.21 respectively. The differences among breeds were statistically significant. First calving ages of BS, HF and EAR cows were 1009.3±39 days, 888.4±34.9 days and 894.8±22.5 days respectively, and the difference among the breeds were found to be significant. Longevity values of BS, HF and EAR cows were 2172.9±179.0 days, 1718.H121.5 days respectively and 2283.6±97.9 days, and the difference among the breeds were statistically significant. Functional longevity values of BS, HF and EAR cows were 1163.6±176.2 days, 829.8±117.6 days and 1388.8±94.1 days, and the difference among the breeds were found, to be statistically significant. 2007, 52 pages
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