Keçilerde Yem Rekabeti Sırasında Gözlenen Agonistik Davranışlar Üzerine Genotip, Boynuz ve Baskınlık Sırasının Etkisi

Year 2021, , 109 - 116, 31.12.2021

Cemil Tölü , Türker Savaş

https://doi.org/10.29185/hayuretim.888409

Cited By: 1

Abstract

Amaç: Bu çalışmada, yem rekabetindeki keçiler arası agonistik etkileşimler, genotip, boynuz ve baskınlık sırası temelinde araştırılmıştır.

Materyal ve Metot: Malta ve Türk Saanen genotiplerinin kendi içinde baskınlık sırası belirlendikten sonra boynuzlu, boynuzsuz ve hem boynuzlu hem boynuzsuz hayvanların bulunduğu karışık grup olmak üzere 2-5 yaşlı, toplam 54 baştan oluşan her birinde dokuzar başlı, doğrusal sosyal sıraya sahip toplam 6 grup oluşturulmuştur. Gözlemler yemliklere konan kaba yem (yulaf kuru otu) rekabetinde gösterdikleri agonistik davranışlar temelinde değerlendirilmiştir.

Bulgular: Genotipin, yemlikte yerini alma davranışı dışında agonistik davranış sıklıklarını önemli derecede etkilediğini göstermiştir (P≤0.05). Türk Saanen genotipi Malta genotipinden 2.36 kat daha fazla agresif ısırma ve 1.78 kat daha fazla korkutma davranışı sergilemiştir (P≤0.0001). Malta genotipinden daha yüksek agresyon sıklığı gösteren Türk Saanen genotipinin bireylerinin yemlikte gözlenmeme oranı Malta genotipine göre daha yüksektir (P=0.0159). Boynuz sallama davranışı dışındaki agonistik davranış sıklıklarının boynuz gruplarına göre önemli düzeyde farklılaştığı belirlenmiştir (P≤0.05). Toplam agresif davranışların toplam ortalama sıklığı, en yüksekten en düşüğe boynuzsuz 27.73 kez/saat, karışık 23.47 kez/saat ve boynuzlu grup 18.48 kez/saat şeklinde sıralanmıştır. Yemlikte gözlenmeme özelliğinin boynuz gruplarında önemli düzeyde farklılaştığı en yüksekten en düşüğe sırasıyla boynuzlu %38, karışık %16 ve boynuzsuz %8 grup şeklinde olduğu gözlenmiştir (P<0.0001).

Sonuç: Malta genotipinin Türk Saanen genotipine göre daha uysal bir yapıda olduğu ve bu uysallığın yem rekabeti anlamında olumlu olabileceği ifade edilebilir.

Keywords

Türk Saanen, Maltız, Beslenme, Etkileşim, Agresfi ısırma

Effects of genotype, horn and social rank on agonistic behaviours during food competition in goats

Abstract

Objective: This study aimed at investigating the agonistic interactions among goats in food competition based on genotype, horn and dominance rank.

Material and Methods: After determining the dominance rank of the Maltese and Turkish Saanen genotypes, a mixed group consisting of horned, polled and both horned and polled animals, 2 to 5 years old, consisting of 54 heads in total, nine heads each and a total of 6 groups with linear social rank were formed. The observations were evaluated on the basis of their agonistic behaviors in competition for roughage (oat hay) placed in the feeders.

Results: Genotype significantly affected the frequency of agonistic behaviors except for displacement behavior in feeder (P≤0.05). Aggressive biting and threatening behaviors in Turkish Saanen were 2.36 and 1.78 times higher than in Maltese (P≤0.0001). The rate of absence at through of Turkish Saanen goats, which displayed higher aggression frequency was higher that of Maltese goats (P=0.0159). The frequency of agonistic behaviors except for flank butting differed according to horn groups (P≤0.05). Total mean frequency of total aggressive behaviors in the descending order ranked 27.73 times/h for hornless, 23.47 times/h for mixed and 18.48 times/h for horned groups. The absence at the feeder differed in horned groups and ranked in the descending order 38% for horn, 16% for mixed and 8% for hornless (P<0.0001).

Conclusion: Maltese genotype is more peaceful than the Turkish Saanen genotype and this peacefulness may be useful in terms of food competition.

Keywords

Turkish Saanen, Maltese, feeding, interaction, aggressive biting

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