The aromatase enzyme is an that converts testosterone to estrogen. This means by administering blockers, levels increase and estrogen decrease. problem faced how the spermatogenesis process occurs because needed as well in process. study aimed evaluate histopathological features of testes due administration natural blockers (NAB). Fifteen male Bangkok chickens were divided into 5 groups, namely...

Sonok cattles are a type of female local Maduran cattle, concentrated on Madura Island. These cattle have special value for the culture and ceremonial events tribe due to excellent exterior beauty appearance, which determined during contest. This study was conducted describe assessment system characters contest determine winner. The carried out as case by observing in August 2020. Observation j...

The aim of study was to determine the relationships between morphological characteristics roosters and fertility in broiler breeders at different age periods. A total 48 480 hens Ross 308 breeder were used. body weight, comb width length, wattle tarsus length measured for 42, 53 weeks age. 1500 eggs incubated 37.7 °C 50-55% relative humidity 18 d, then 36.6 60% 3 d. effect on index (P=0.002), (...