SEASONAL EFFECTS ON OESTRUS PATTERNS AND PROGESTERONE PROFILES OF YANKASA EWES OF DIFFERENT AGE-GROUPS IN THE SUB-HUMID TROPICS

Autor:	B.S. Oladimeji, O. A. Osinowo, J.P. Alawa, J.O. Hambolu
Rok vydání:	2021
Předmět:	Estrous cycle medicine.medical_specialty Animal production Oestrus Yankasa Progesterone Season Subhumid Tropics Tropics Serum progesterone Biology Humid tropics Heat stress Endocrinology Animal science Age groups Internal medicine Tropical climate medicine
Zdroj:	Nigerian Journal of Animal Production; Vol 28, No 1 (2001); 211-216
ISSN:	0331-2062
Popis:	Oestrus patterns and serum progesterone profiles of 10 adult and 10 yearling Yankasa ewes were investigated in the late hot-dry and late-wet seasons in the subhumid tropical climate of Zaria, Nigeria. The proportions of ewes which came on heat once, twice or thrice within the experimental periods in the late hot-dry and late-wet seasons were 25, 15 and 0%, and 5, 10 and 85% respectively, while mean oestrous cycle length was significantly longer (P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f4867e19fae49667f843731edc7ecc3 https://doi.org/10.51791/njap.v28i2.1938 Zobrazit plný text záznamu