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Selected aspects of collared peccary ( Dicotyles tajacu ) reproductive biology in a captive texas herd
Author(s) -
Lochmiller Robert L.,
Hellgren Eric C.,
Grant W. E.
Publication year - 1984
Publication title -
zoo biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.5
H-Index - 54
eISSN - 1098-2361
pISSN - 0733-3188
DOI - 10.1002/zoo.1430030206
Subject(s) - biology , captivity , herd , ovulation , zoology , gestation , reproduction , singleton , sex ratio , estrous cycle , birth weight , pregnancy , ecology , demography , population , genetics , sociology
Collared peccaries ( Dicotyles tajacu ) from 32 litters were born in captivity during the period from September, 1981 through July, 1983. Incidence of singleton, twin, and triplet litters was 28%, 66%, and 6%, respectively. Mean (± SE) weight of young from singleton, twin, and triplet litters was 751 (± 35) gm, 698 (± 17) gm, and 612 (± 74) gm, respectively. Sex ratio among all litters was 56:44 (M:F). Neonatal mortality amounted to 9% of the young born. Mean duration of estrus was 2.60 days and mean length of gestation was 145.6 days. Evidence indicated that multiple copulations increased ovulation rate and the chance for conception.