| high prolificacy in belle-ile sheep (brittany, france): major effects of a putative single gene and the awh colour gene on ovulation rate and litter size. | ovulation rate (or) and litter size (ls) were recorded in 72 ewes from a traditional sheep population native to belle-ile en mer, france (bi) from 1986 to 1996. mean, range and repeatability of or were: 2.54 +/- 1.1 (n = 494), 1-8 and 0.8, respectively, whereas, for ls, they were: 2.23 +/- 1.0 (n = 146), 1-7 and 0.2, respectively. or is significantly influenced by age, number of or, maximum or in the dam (< or = 3 versus > 3), sire and colour of the fleece (white versus black pattern). or was al ... | 1998 | 9795990 |