참고문헌
- Arey, D. S. and S. A. Edwards. 1998. Factors influencing aggression between sows after mixing and the consequences for welfare and production. Livest. Prod. Sci. 56:61-70 https://doi.org/10.1016/S0301-6226(98)00144-4
- Bates, R. O., D. B. Edwards and R. L. Korthals. 2003. Sow performance when housed either in groups with electronic sow feeders or stalls. Livest. Prod. Sci. 79(1):29-35 https://doi.org/10.1016/S0301-6226(02)00119-7
- Baxter, M. R. and J. C. Petherick. 1980. The effect of restraint on parturition in the sow. In: Proceedings of the 6th International Congress Pig Veterinary Society. Copenhagen, Denmark, pp. 84
- Fraser, A. F. and D. M. Broom. 1997. Farm animal behaviour and welfare. 3rd. edition, Center of Agriculture and Biosciences International, Wallingford, UK
- Geuyen, T. P. A., J. M. F. Verhagen and M. W. A. Verstegen. 1984. Effect of housing and temperature on metabolic rate of pregnant sows. Anim. Prod. 38:477 https://doi.org/10.1016/0306-4565(88)90002-2
- Lawrence, A. B., J. C. Petherick, K. A. McLean, L. A. Deans, J. Chirnside, A. Vaughan, E. Clutton and E. M. C. Terlouw. 1994. The effect of environment on behaviour, plasma cortisol and prolactin in parturient sows. Appl. Anim. Behav. Sci. 39:313-330 https://doi.org/10.1016/0168-1591(94)90165-1
- Randall, G. C. 1972a. Observations on parturition in the sow. I. Factors associated with the delivery of the piglets and their subsequent behaviour. Vet. Rec. 90(7):178-182 https://doi.org/10.1016/0168-1591(95)00580-L
- Randall, G. C. 1972b. Observations on parturition in the sow. II. Factors influencing stillbirth and perinatal mortality. Vet. Rec. 90(7):183-186 https://doi.org/10.1016/0378-4320(79)90057-5
- SAS. 2004. SAS/STAT user's guide. SAS Institute, Cary, NC
- Spoolder, H. A. M., J. A. Burbidge, S. A. Edwards, A. B. Lawrence and P. H. Simmins. 1997. Effects of food level on performance and behaviour of sows in a dynamic grouphousing system with electronic feeding. Anim. Sci. 65:473-482 https://doi.org/10.1017/S1357729800008675
- SVC. 1997. The Welfare of intensively kept pigs. European Scientific Veterinary Committee
- Svendsen, J., L. A. Svendsen and A. C. Bengtsson. 1986. Reducing perinatal mortality in pigs. In: Current therapy in theriogenology 2 (Ed. D. A. Morrow). W.B. Saunders, Philadelphia, pp. 939-946
- Terlouw, E. M. C., A. B. Lawrence and A. W. Illius. 1991. Influences of feeding level and physical restriction on development of stereotypies in sows. Anim. Behav. 42:981-991 https://doi.org/10.1016/S0003-3472(05)80151-4
- Vestergaard, K. and L. L. Hansen. 1984. Tether versus loose sows: ethological observations and measures of productivity. I. Ethological observations during pregnancy and farrowing. Annales de Recherches Veterinaires 15:245-256
- Weng, R. C. 2000. Factors influencing mother-young interactions in intensive pig production systems. PhD Thesis. Aberdeen University, UK
피인용 문헌
- Effects of Gestational Housing on Reproductive Performance and Behavior of Sows with Different Backfat Thickness vol.29, pp.1, 2016, https://doi.org/10.5713/ajas.14.0973