共 19 条
- [1] English P.R., The sow-improving her efficiency, (1977)
- [2] Clough C.E., An evaluation of the farrowing crate, Farm Building Progress, 76, (1984)
- [3] Lou Z., Hurnik J.F., Perpartum sows in three farrowing crates: posture patterns and behavioral activities, Appl Anim Behav Sci, 58, 1-2, pp. 77-86, (1998)
- [4] Collins E.R., Kornega Y.E.T., Bonnette E.D., The effects of two confinement systems on the performance of nursing sows and their litters, Appl Anim Behav Sci, 17, 1-2, pp. 51-59, (1987)
- [5] Hecket W.L., Widowski T.M., Curtis S.E., Prepartum behavior of gilts in three farrowing environments, J Anim Sci, 66, pp. 1378-1385, (1988)
- [6] Curtis S.E., Hurst R.J., Gonyou H.W., Et al., The physical space requirement of the sow, J Anim Sci, 67, pp. 1242-1248, (1989)
- [7] McGlone J.J., Morrow-Tesch J., Productivity and behavior of sows in level vs sloped farrowing pens and crates, J Anim Sci, 68, 11, pp. 82-87, (1990)
- [8] Phillips P.A., Fraser D., Thompson B.K., Preference by sows for a partially enclosed farrowing crate, Appl Anim Behav Sci, 32, 1, (1991)
- [9] Cronin G.M., Smith J.A., Suckling behavior of sows in farrowing crates and straw-bedded pens, Appl Anim Behav Sci, 33, 2-3, (1992)
- [10] Phillips P.A., Fraser D., Developments in farrowing housing for sows and litters, Pig News Info, 14, 1, (1993)