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The onset of puberty in Cameroon Dwarf goats kept as pets in northwester Croatia (CROSBI ID 237179)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Đuričić, Dražen ; Vince, Silvijo ; Valpotić, Hrvoje ; Žura Žaja, Ivona ; Turk, Romana ; Lojkić, Martina ; Getz, Iva ; Berta, Velimir ; Samardžija, Marko The onset of puberty in Cameroon Dwarf goats kept as pets in northwester Croatia // Reproduction in domestic animals, 52 (2017), 2; 278-282. doi: 10.1111/rda.12892

Podaci o odgovornosti

Đuričić, Dražen ; Vince, Silvijo ; Valpotić, Hrvoje ; Žura Žaja, Ivona ; Turk, Romana ; Lojkić, Martina ; Getz, Iva ; Berta, Velimir ; Samardžija, Marko

engleski

The onset of puberty in Cameroon Dwarf goats kept as pets in northwester Croatia

The aim of this study was to determine onset of puberty in Cameroon Dwarf goats (CDG) kept as pets in northwestern Croatia by determining progesterone (PGS) and insulin like growth factor-I (IGF-I) levels in the blood by RIA methods. The first cyclic ovarian activity was estimated according to hormone profiles as determined in CDG in a moderate climate environment. Sixteen female CDG kids were kept in stables with access to pasture which provided space for exercise. The goat kids born in winter (December-January-February), spring (March-April-May), summer (June-July-August) and autumn (September-October-November) were assigned into four groups according to the season of the year of birth (n=4 in each group). At 75 days of age at the initiation of the study, they weighed between 3.2 kg and 5.1 kg (4.24 ± 0.53 kg). The onset of ovulatory activity was determined by PGS and IGF-I serum concentrations every 10 days starting from 75 days to 155 days of age. The onset of puberty in CDG kids occurred on average at 141.15 ± 2.66 days of age, but varied depending on the season of birth. All CDG kids born during summer were in heat by 155 days of age. In the other groups (kids born in autumn, winter or spring), one goat in each group was not in heat. Changes in blood serum PGS and IGF-I concentrations during prepubertal and pubertal periods could aid in the evaluation of reproductive status and determination of the onset of puberty in CDG during all seasons of the year in a moderate climate region.

Cameroon dwarf goats, puberty, progesterone, IGF-I, moderate climate

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Podaci o izdanju

52 (2)

2017.

278-282

objavljeno

0936-6768

10.1111/rda.12892

Povezanost rada

Veterinarska medicina

Poveznice
Indeksiranost