Etlik Piliçlerde (broyler) Canlı Ağırlık ve Karkas Özellikleri ile Cinsiyet İlişkisi Üzerine Bir Araştırma

Öz

Bu araştırmada, tavukların karkas ve parça ağırlıkları ile cinsiyetleri arasındaki ilişki düzeyinin belirlenmesi amaçlanmıştır. Bu amaçla elde edilen canlı ağırlık, karkas, but, kanat, göğüs, kalp, karaciğer ve taşlık değerleri, Kahramanmaraş ilinde ticari olarak faaliyet göstermekte olan kesimhanelerden Ross 308 hibrit etlik piliçlerine aittir. Kesimhaneden 60 adet etlik piliç temin edilmiş (30 dişi-30 erkek birey) ve kesim öncesi canlı ağırlık ve kesim sonrası ilgili karkas, tavuk parçaları (but, göğüs, kanat) ve iç organlara (kalp, karaciğer, taşlık) ait değerlerin ölçümleri alınmıştır. Araştırmada bağımlı değişken cinsiyet, bağımsız değişkenler de canlı ağırlık, karkas, but, kanat, göğüs, kalp, karaciğer ve taşlık olarak alınmış ve lojistik regresyon ikili (binary) analizinden yararlanılmıştır. Tahmin sonuçlarına göre referans kategorisi erkek (1), model katsayılarının testinde olasılık değeri 0.036 (p<0.05) bulunmuştur. Tavukların karkas ve parça ağırlıkları ile cinsiyetleri arasındaki ilişki düzeyinin diğer bağımsız değişkenlere göre en anlamlı şekilde açıklayan bağımsız değişken göğüs (0.084), en anlamsızı da taşlık (0.939) olduğu yapılmış analiz ile belirlenmiştir.

Anahtar Kelimeler

• Tavuk
• Tavuk parçaları
• lojistik regresyon
• cinsiyet.

A Study on Body Weight and Carcass Characteristics and Sex in Broilers.

Öz

In this study, it was aimed to determine the level of relationship between the carcass and piece weights of chickens and their gender. The body weight, carcass, thigh, wing, breast, heart, liver and gizzard values obtained for this purpose belong to Ross 308 hybrid broiler chickens from the commercially operating slaughterhouses in Kahramanmaraş. 60 broiler chickens (30 females-30 males) were obtained from the slaughterhouse and the measurements of the body weight before slaughter and the values of the relevant carcass, chicken parts (leg, breast, wing) and internal organs (heart, liver, gizzard) after slaughter were taken. In the study, the dependent variable was sex, the independent variables were body weight, carcass, thigh, wing, breast, heart, liver and gizzard, and logistic regression binary analysis was used. According to the estimation results, the reference category was male (1), and the probability value in the test of the model coefficients was found to be 0.036 (p<0.05). The most significant independent variable explaining the relationship between carcass and piece weights and gender of chickens compared to other independent variables was found to be breast (0.084), and the most insignificant was gizzard (0.939).

Anahtar Kelimeler

• Chicken
• Chicken parts
• logistic regression
• gender.

Kaynakça

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