Konuklar (Konya) Tarım İşletmesinde yetiştirilen esmer sığırların bazı verim özelliklerinin fenotipik ve genetik parametreleri
Yükleniyor...
Dosyalar
Tarih
2001-07-18
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Selçuk Üniversitesi Fen Bilimleri Enstitüsü
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu araştırmada, Konuklar Tanın işletmesinde yetiştirilen Esıner sığırlarda süt verüniyle ilgili iki, döl verimi ile ilgili alti özellik bakımından performanslar ve bu verimlere ait fenotipik ve genetik parametreler hesaplanmıştır. İncelenen Özelliklere ait en küçük kareler ortalamaları İlk Damızlıkta Kullanma Yaşı (İDKY), İlk Buzağılama Yaşı (İBY), Servis Periyodu (SP), Gebelik Süresi (GS), Buzağılama Aralığı (BA), Gebelik Başına Tohumlama Sayısı (GBTS), Süt Verimi (SV) ve Laktasyon Süresi (LS) için sırasıyla 623.19 ± 3.88 gün, 943.49 ± 4.42 gün, 118.70 ± 6.75 gün, 285.92 ± 0.83 gün, 387.47 ± 2.99 gün, 1.533 ± 0.04, 6173.48 ± 102.92 kg ve 303.85 ± 5.78 gün olarak hesaplanmışür. Bu özelliklere ait kalıtım dereceleri sırasıyla 0.766 ± 0.242, 0.214 ± 0.201, 0.074 ± 0.096, 0.053 ± 0.046, 0.131 ± 0.146, 0.331 ± 0.122, 0.107 ±0.119 ve 0.226 ± 0.156, SP, GS, BA, GBTS, SV ve LS için hesaplanan tekrarlanma dereceleri ise aynı sırayla 0.089 ± 0.071, 0.151 ± 0.059, 0.103 ± 0.101, 0.143 ± 0.047, 0. 188 ± 0.085 ve 0.23 1 ± 0.084 olarak hesaplanmışür. u k Araştırmada, İDKY, SP, SV ve LS üzerine yılın etkisi (p<0.01), GS üzerine buzağı cinsiyetinin etkisi (p<0.01), BA üzerine yaşın etkisi (p<0.01), GBTS ve SV üzerine yaşın etkisi (p<0.05), BA üzerine laktasyon sırası ve buzağılama mevsiminin etkisi (p<0.01), GBTS üzerine gebelik sırasının etkisi (p<0.05) istatistik bakımdan önemli bulunmuştur. Yılın İBY, GS, BA, GBTS üzerine, yaşın SP, GS ve LS üzerine, laktasyon sırasının SP üzerine, buzağılama sırasının SV ve LS üzerine ve buzağılama mevsiminin SV ve LS üzerine olan etkileri istatistik olarak önemsiz bulunmuştur (p>0.05).
Six reproductive and two productive traits were determined and genetic and phenotipic parameters were estimated for these eight traits in the Brown Swiss herd reared at the Konuklar State Farm in Konya. The least squares means of first service age, first calving age, service period, gestation length, calving interval, number of insemination per conception, lactation milk yield and lactation length are 623.19 ± 3.88 days, 943.49 ± 4.42 days, 1 18.70 ± 6.75 days, 285.92 ± 0.83 days, 387.47 ± 2.99 days, 1.533 ± 0.04, 6173.48 ± 102.92 kg ve 303.85 ± 5.78 days, respectively. Heritabilities of these traits are 0.766 ± 0.242, 0.214 ± 0.201, 0.074 ± 0.096, 0.053 ± 0.046, 0.131 ± 0.146, 0.331 ± 0.122, IV 0.107 ± 0.119 and 0.226 ± 0.156, respectively. The repeatibilities of service period, gestation length, calving interval, number of insemination per conception, lactation milk yield and lactation length are 0.089 ± 0.071, 0.151 ± 0.059, 0.103 ± 0.101, 0. 143 ± 0.047, 0. 188 ± 0.085 and 0.23 1 ± 0.084, respectively. The year had a significanteffect on the first insemination age, service period, lactation rnilk yield and lactation length at (p<0.01) levels. The sex of calf affected the gestation length (p<0.01), the calving age affected calving intervals (p<0.01) and number of insemination per conception and lactation milk yield (p<0.05), the lactation number and the calving season affected calving interval (p<0.01) and gestation number affected number of insemination per conception (p<0.05). However, the effect of year on first calving age, gestation length, calving interval, number of insemination per conception was not significant, and the effect of age was not statistically significant on service period, gestation length, lactation length and the effect of lactation number was not statistically significant on service period and the effect of calving number on lactation milk yield, the effects lactation length and calving season were not statistically significant on lactation milk yield and lactation length.
Six reproductive and two productive traits were determined and genetic and phenotipic parameters were estimated for these eight traits in the Brown Swiss herd reared at the Konuklar State Farm in Konya. The least squares means of first service age, first calving age, service period, gestation length, calving interval, number of insemination per conception, lactation milk yield and lactation length are 623.19 ± 3.88 days, 943.49 ± 4.42 days, 1 18.70 ± 6.75 days, 285.92 ± 0.83 days, 387.47 ± 2.99 days, 1.533 ± 0.04, 6173.48 ± 102.92 kg ve 303.85 ± 5.78 days, respectively. Heritabilities of these traits are 0.766 ± 0.242, 0.214 ± 0.201, 0.074 ± 0.096, 0.053 ± 0.046, 0.131 ± 0.146, 0.331 ± 0.122, IV 0.107 ± 0.119 and 0.226 ± 0.156, respectively. The repeatibilities of service period, gestation length, calving interval, number of insemination per conception, lactation milk yield and lactation length are 0.089 ± 0.071, 0.151 ± 0.059, 0.103 ± 0.101, 0. 143 ± 0.047, 0. 188 ± 0.085 and 0.23 1 ± 0.084, respectively. The year had a significanteffect on the first insemination age, service period, lactation rnilk yield and lactation length at (p<0.01) levels. The sex of calf affected the gestation length (p<0.01), the calving age affected calving intervals (p<0.01) and number of insemination per conception and lactation milk yield (p<0.05), the lactation number and the calving season affected calving interval (p<0.01) and gestation number affected number of insemination per conception (p<0.05). However, the effect of year on first calving age, gestation length, calving interval, number of insemination per conception was not significant, and the effect of age was not statistically significant on service period, gestation length, lactation length and the effect of lactation number was not statistically significant on service period and the effect of calving number on lactation milk yield, the effects lactation length and calving season were not statistically significant on lactation milk yield and lactation length.
Açıklama
Anahtar Kelimeler
Esmer sığırlar, Brown cattles, Konuklar Tarım İşletmesi, Konya, Tarım işletmeleri, Agricultural enterprises, Verim özellikleri, Yield properties, Zootekni, Zootechnics
Kaynak
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
Künye
Zülkadir, U. (2001). Konuklar (Konya) Tarım İşletmesinde yetiştirilen esmer sığırların bazı verim özelliklerinin fenotipik ve genetik parametreleri. Selçuk Üniversitesi, Yayımlanmış doktora tezi, Konya.
