Effect on gestation length of litter size, and inter-pup interval, change of rectal temperature in german shepherd and labrador retriever bitches

Sunulan çalışmada, Alman Çoban ve Lobrador Retriever ırkı köpeklerde rektal ısı değişimleri, yavru sayıları ve doğan yavrular arasındaki süre ve gebelik süreleri üzerine etkileri araştırmaktır. Çalışma, Bursa ilinde özel bir köpek barınağında, iki farklı ırktan toplam 30 adet köpek kullanılarak gerçekleştirildi. Çiftleştirmeler vaginal sitoloji ve erkeğin kabulüne göre yapıldı. Yapılan çiftleştirmeler sonrası 25-30. günler arasında transabdominal ultrasonografi ile gebelik tespit edildi. Köpeklerde doğum ilk çiftleştirmeleri takiben 58-64 günler arasında gerçekleşti. Ortalama gebelik süresi Alman Çoban ırklarında 62.6$underline{+}$1.5 gün ve Labrador Retriever ırklarında 61.6$underline{+}$2.0. gün olarak belirlendi. Doğan yavrular arasındaki süre ise Alman Çoban ırklarında 20 ile 415 dakika arasında gerçekleşirken, Labrador ırklarında bu süre 5-405 dakika arasında gözlemlendi. İlk yavrunun çıkışı ile son yavru çıkışındaki süre (doğumun ikinci aşaması) Alman Çoban köpeklerde 7.49$underline{+}$2.44 ve Labrador Retriever ırkı köpeklerde ise 7.38$underline{+}$1.75 saat olarak belirlendi. Yavru sayısın gebelik süreleri üzerine de etkisinin olmadığı saptandı (P>00,5). Rektal ısı ilk yavrunu doğumundan 24 saat önce 38,27$underline{+}$0.04 °C, doğumundan hemen sonra 37.43$underline{+}$0.06 °C olarak ölçüldü (P

Labrador retriever ve alman çoban köpeklerde rektal ısı değişimi, doğan yavrular arasındaki süre ve yavru sayısının gebelik süreleri üzerine etkisi

The objective of the current study was to investigate duration of gestation, inter-pup interval and rectal temperature during peripartum period in German Shepherd Dogs and Labrador Retriver bitches in the special care unit of dog in Bursa. The study was performed on 30 bitches of two breds. Estruses were determined according to acceptance of the male for mating. Bitches were examined in dorsal recumbency between days 25 and 30 of gestation without sedation. Pregnancy was confirmed by ultrasonography in all dogs. Gestations length was ranged from 58-64 days. There were 62.6$underline{+}$1.5 and 61.6$underline{+}$2.0. days in German Shepherd dogs and Labrador Retriever bitches respectively. The time between birth of the first puppy and the second puppy ranged between 20-415 min, and 5-405 min in German Shepherd Dogs as compared with the labrador bitches. Length of the expulsion phase was calculated as 7.49$underline{+}$2.44 (3.5- 14.8 h) and 7.38$underline{+}$1. (4.08-11.11 h) respectively, in German Shepherd Dogs and Labrador Retriewers. Litter size did not have an effect on duration of gestation in the bitches(P>00,5). Rectal temperature was calculated as 38.27$underline{+}$0.04 °C at 24 h before expulsion of the first pup and 37.43$underline{+}$0.06 °C at onset of whelping. Mean rectal temperature, 24 h after parturition, calculated as 38.27$underline{+}$0.04 °C was significantly higher (P

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