Respons Fisiologis Ayam KUB (Kampung Unggul Balitbangtan) dan Ayam Walik dengan Haplotipe Gen HSP70 Berbeda yang Terpapar Cekaman Panas Akut

Abstract

This study was conducted to determine the physiological response of acute heat stress in Kampung Unggul Balitbangtan (KUB) and Walik chickens with four different HSP70 gene haplotypes (H1', H1, H2, and H3). Acute heat stress is carried out at 35°C for one hour. The data was analyzed based on rectal temperature measurements, distribution of body surface temperature (head, neck, body, and leg area), hormone levels (corticosterone and triiodothyronine), and time of panting. Body surface temperature is detected using infrared thermography. The results showed that haplotype H1 Walik chicken is more susceptible to heat stress based on the rectal temperature. In contrast, H1' haplotype Walik chicken released more heat through the body surface in the leg area.
 Keywords: heat stress, hormone, KUB chicken, infrared thermography, walik chicken

Lohmann Broiler Growth Performance using Positive Pressure Barn System

“…The normal body temperature of poultry is between 40.5-41.5 o C (Tamzil et al, 2013;Pawar et al, 2016). To be able to live comfortably, three-week-old broilers need a barn temperature between 20-25 o C and relative humidity of around 50-70%, while adult broilers need a temperature of 26-27 o Cand laying hens need temperatures between 18-23.9 o C (Tamzil, 2014, Pawar et al, 2016, Aryani et al, 2021. In the case of barn temperature in this study, only the temperature in the closed house barn was able to produce the lowest maximum temperature limit of 28.10 o , while in the positive pressure and closed house barns, each reached a temperature of 30.65 o and 31.32 o C.…”

“…In some areas in Indonesia, the temperature is around 27°C -32°C, even more with humidity ranging from 75% -80% (Aryani et al, 2021). Poultry rearing in this microclimate suffer from stress and reduces production performance (egg growth and production) (Renata et al, 2018).…”

Fertilitas, Daya Tetas, Dan Bobot Tetas Ayam Kub-1 Di Uptd Ternak Unggas Dinas Peternakan Dan Kesehatan Hewan Provinsi Sumatera Barat

“…Hal sesuai dengan pernyataan Sudaryani dan Santoso (1999), yang menyatakan bobot tetas yang ideal yaitu 2/3 dari bobot telur dan apabila bobot telur tetas di bawah dari hasil perhitungan tersebut dapat disimpulkan peoses penetasan masih belum optomal. Maka untuk mendapatkan hasil bobot tetas yang baik maka perlu seleksi terhadap bobot telur, sebagaimana yang diterangkan Hayanti (2014) , menjelaskan untuk mendapatkan keturunan ayam KUB yang baik, sebaiknya telur diseleksi dengan kisaran berat 36-46 gr dengan bobot tetas minimal 27gr/ekor. Suhu dan kelembaban juga memepengaruhi bobot tetas.…”

Pengaruh Suhu Kandang yang Berbeda terhadap Penampilan Produksi Ayam Kampung Unggul Balitnak (KUB) Periode Starter

“…Rataan konsumsi pakan yang diperoleh dalam penelitian ini masih tergolong normal. Konsumsi pakan ayam KUB umur 2-4 minggu berada pada kisaran 20-30 gr/ekor/hari [7]. Rataan konsumsi ayam KUB berkisar antara 19-47 gr/ekor/hari [8].…”