Open AccessOVULATION RATES IN THE LACOMBE BREED OF PIGS
Author(s) -
Jonathan A. Newman
Publication year - 1963
Publication title -
canadian journal of animal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1918-1825
pISSN - 0008-3984
DOI - 10.4141/cjas63-039
Subject(s) - ovulation , breed , litter , zoology , pregnancy , biology , gestation , genetics , ecology
Ovulation rates were estimated by corpora lutea counts made after slaughter at 50 ± 4 or 100 ± 4 days of gestation. Mean corpora lutea counts of 14.5 ± 3.2 for gilts and 21.4 ± 4.4 for sows of the Lacombe breed are reported. The evidence suggested that ovulation rate was subject to a high degree of genetic control, but was not highly correlated with litter size at the stages of pregnancy examined.
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