共 50 条
- [5] Influence of stage of gestation at grouping and presence of boars on farrowing rate and litter size of group-housed sows [J]. JOURNAL OF SWINE HEALTH AND PRODUCTION, 2008, 16 (02): : 81 - 85
- [6] A COMPARISON OF THE NURSING AND SUCKLING BEHAVIOR OF GROUP-HOUSED AND INDIVIDUALLY-HOUSED SOWS AND THEIR LITTERS [J]. ANIMAL PRODUCTION, 1983, 36 (JUN): : 445 - 451