Table 2 Fertility results for the different packages and thawing temperatures. Non-return (25-days NR) and lambing rates for different packages and thawing temperatures after vaginal insemination of 719 ewes, aged between six months and six-and-a-half years, with 200 × 106 frozen-thawed spermatozoa collected from 7 mature rams.
Non return | Lambing | ||||
|---|---|---|---|---|---|
Straw type/Thawing temperature | Number of inseminations | Number | Percentage | Number | Percentage |
T 70 | 234 | 148 | 63.2 | 133 | 56.8 |
S 50 | 240 | 143 | 59.6 | 132 | 55.0 |
S 35 | 245 | 153 | 62.5 | 145 | 59.2 |
Total | 719 | 444 | 61.8 | 410 | 57.0 |