Renkli tiftik keçisi ve Ankara keçisi x renkli tiftik keçisi F1 oğlaklarında yaşama gücü ve büyüme performanslarının araştırılması
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Tarih
2007
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info:eu-repo/semantics/openAccess
Özet
Bu çalışma, Ankara keçisi x Renkli tiftik keçisi F1 melezi oğlaklarının yaşama gücü ve büyüme performansları bakımından Renkli tiftik keçisi oğlakları ile karşılaştırılması ve söz konusu melezlemenin yaşama gücü ve büyüme performansı üzerine etkisini ortaya koymak amacıyla yapılmıştır. Çalışma, Yüzüncü Yıl Üniversitesi Veteriner Fakültesi Araştırma ve Uygulama Çiftliğinde yetiştirilen Renkli tiftik keçisi sürüsünde yürütülmüştür. Büyüme için; 2001 yılında doğan 38 baş Fı melez (Ankara tiftik keçisi x Renkli tiftik keçisi), 20 baş saf (Renkli tiftik keçisi x Renkli tiftik keçisi), 2002 yılında ise 25 F1 melez, 31 saf genotipli oğlakların büyümesi takip edilmiş, sütten kesim (105. gün) ve altıncı ay yaşama güçleri belirlenmiştir. Büyümede çeşitli dönemlerdeki canlı ağırlıklar ve bu dönemlerde büyüme üzerine etkili çeşitli çevre faktörlerinin etkileri ele alınmıştır. Renkli tiftik keçisi oğlaklarında, sütten kesim ve 6. aya kadar ki yaşama gücü oranları eşit ve % 94.1 olarak, melez genotipte, sütten kesim ve 6. aya kadar ki yaşama gücü oranları % 96.8 ve 95.2; doğum, sütten kesim, 6. ay ve 1 yaş düzeltilmiş canlı ağırlık ortalamaları, saf genotipte sırasıyla 2.04, 12.92, 18.31 ve 19.87 kg, melez Fı’lerde 2.04, 13.98, 20.50 ve 20.83 kg olarak tespit edilmiştir. Büyümenin değişik dönemlerindeki büyüme üzerine etkili çeşitli çevre faktörlerinin etkileri incelenmiş olup; doğum ağırlığı dışında tüm dönemlerde büyüme üzerine genotipin etkisi önemli bulunmuştur (P<0.01, P<0.001). Bunun yanında büyümenin çeşitli dönemlerindeki canlı ağırlıklar üzerine cinsiyet, doğum tipi ve ana yaşının etkisi de değişik düzeylerde önemli (P<0.05, P<0.01, P<0.001) bulunurken, doğum yılının etkisi önemsiz olarak tespit edilmiştir. Sonuç olarak, Renkli tiftik keçisi oğlakları ile Ankara keçisi x Renkli tiftik keçisi Fı oğlakları arasında yaşama gücü yönünden fark olmadığı ve melez F1’ lerin araştırmanın yürütüldüğü bölgeye adapte olabileceği ayrıca, saf ve melez oğlakların doğum ağırlıkları farksız olmasına rağmen ilerleyen dönemlerde melez oğlakların daha iyi bir büyüme performansı sağladıkları belirlenmiştir
The aim of this study was to compare the survival rate and growth performances of kids of Coloured mohair goat with F1 cross-breed kids of Angora goat x Coloured mohair goat and to reveal the effects of this cross-breeding on survival rate and growth performance. This study was carried out at the Coloured mohair goat at the experimental farm of Faculty of Veterinary Medicine of Yüzüncü Yıl University. In 2001 year for survival rate and growth, 38 cross-breed F1 (Angora mohair goat x Coloured mohair goat) and 20 pure (Coloured mohair goat x Coloured mohair goat) kids were used. In 2002, survival rate of weaning (105th day), survival rate until 6th month and growth of 25 F1 cross-breed and 31 pure kids were determined. Live weights at different periods of growth and effects of various environmental factors on growth at these periods were investigated. Survival rate of weaning and survival rate until 6th month were 94.1 % and 94.1 % for Coloured mohair kids, 96.8 % and 95.2 % for cross-breed (F1) kids, respectively. Birth, weaning, 6th month and 1 year old weights were 2.04, 12.92, 18.31 and 19.87 kg for Coloured mohair goats, respectively. Birth, weaning, and 6th month and 1 year old weights were 2.04, 13.98, 20.50 and 20.83 kg for cross-breed goats (F1), respectively. Effects of various environmental factors on growth at different periods throughout growth were examined. The effect of genotype on growth at all periods was significant (P<0.01, P<0.001), except for birth weight. Furthermore, effects of sex, type of birth, age of dam on live weights at different periods of growth were significant (P<0.05, P<0.01, P<0.001), except for year of birth. The results found in this study showed that survival rate of Coloured mohair goat and Angora x Coloured mohair goat F1 kids were similar. The cross-breed F1 kids can be adapted to the region where experiment was carried out. Even though birth weight of pure and cross-breedı kids were not different, cross-breed kids had better growth performance compared with coloured mohair kids as they matured.
The aim of this study was to compare the survival rate and growth performances of kids of Coloured mohair goat with F1 cross-breed kids of Angora goat x Coloured mohair goat and to reveal the effects of this cross-breeding on survival rate and growth performance. This study was carried out at the Coloured mohair goat at the experimental farm of Faculty of Veterinary Medicine of Yüzüncü Yıl University. In 2001 year for survival rate and growth, 38 cross-breed F1 (Angora mohair goat x Coloured mohair goat) and 20 pure (Coloured mohair goat x Coloured mohair goat) kids were used. In 2002, survival rate of weaning (105th day), survival rate until 6th month and growth of 25 F1 cross-breed and 31 pure kids were determined. Live weights at different periods of growth and effects of various environmental factors on growth at these periods were investigated. Survival rate of weaning and survival rate until 6th month were 94.1 % and 94.1 % for Coloured mohair kids, 96.8 % and 95.2 % for cross-breed (F1) kids, respectively. Birth, weaning, 6th month and 1 year old weights were 2.04, 12.92, 18.31 and 19.87 kg for Coloured mohair goats, respectively. Birth, weaning, and 6th month and 1 year old weights were 2.04, 13.98, 20.50 and 20.83 kg for cross-breed goats (F1), respectively. Effects of various environmental factors on growth at different periods throughout growth were examined. The effect of genotype on growth at all periods was significant (P<0.01, P<0.001), except for birth weight. Furthermore, effects of sex, type of birth, age of dam on live weights at different periods of growth were significant (P<0.05, P<0.01, P<0.001), except for year of birth. The results found in this study showed that survival rate of Coloured mohair goat and Angora x Coloured mohair goat F1 kids were similar. The cross-breed F1 kids can be adapted to the region where experiment was carried out. Even though birth weight of pure and cross-breedı kids were not different, cross-breed kids had better growth performance compared with coloured mohair kids as they matured.
Açıklama
Anahtar Kelimeler
Veterinerlik
Kaynak
Yüzüncü Yıl Üniversitesi Veteriner Fakültesi Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
18
Sayı
1
