« Previous
Next »
Theriogenology
Volume 72, Issue 9
, Pages 1188-1194
, December 2009
Induction of lactational estrus in organic piglet production
References
- Rydhmer L, Wallenbeck A, Hultén F. Reproduction and maternal behaviour in organic piglet production. In: NJF-seminar 369, Organic farming for a new millennium – status and future challenges, vol. 1. Nordic Association of Agricultural Scientists (NJF), Section I: Soil, Water and Environment, Swedish University of Agricultural Sciences, Alnarp, Sweden, 15-17 June; 2005, pp. 207-210.
- . Ovarian activity and oestrous signs among group-housed, lactating sows: influence of behaviour, environment and production. Reprod Domest Anim. 2006;41:448–454
- . Laktationsbrunst i økologiske sohold–et gode eller et onde?. Forskningsnyt. 2005;4:26–28
- . The suckling behaviour of domestic pigs in seminatural environment. Behavior. 1985;95:11–25
- . When to wean–observations from free-ranging pigs. Appl Anim Behav Sci. 1989;23:49–60
- . Behaviour of piglets during weaning in a seminatural enclosure. Appl Anim Behav Sci. 1992;33:227–238
- . Animal health and welfare in organic European pig production: State of the art and challenges for the future, based on a Northwestern European questionnaire survey. In: Organic Farming and European Rural Development: Proceedings of the European Joint Organic Congress. Danish Research Centre for Organic Food and Farming; 2006;p. 562–563
- . Mating of sows during lactation: observations from a commercial unit. Anim Prod. 1975;21:233–241
- . Lactational estrus in sows, a way to increase the number of farrowings per sow per year. J Anim Vet Adv. 2004;3(5):294–305
- . Incidence of estrus and oestrous trends in lactating sows housed in different social and physical environments. Appl Anim Behav Sci. 1989;22:235–244
- . Lactational oestrus in the sow. 3. The influence of feeding level upon the occurrence of a fertile oestrus in lactating sows. Anim Prod. 1982;35:49–53
- . The influence of different feeding arrangements and food type on competition at feeding in pregnant sows. Appl Anim Behav Sci. 1999;65:91–140
- . The mating behaviour and reproduction performance in a multi-sire mating system for pigs. Theriogenology. 2008;69:1139–1147
- Littell RC, Milliken GA, Stroup WE, Wolfinger RD. SAS® System for Mixed Models. SAS Institute Inc., 633 pp.
- SAS Institute Inc. SAS/STAT® User's Guide. SAS Institute Inc., 1990.
- . Sow service in lactation: an analysis of data from one herd. Anim Prod. 1979;29:183–191
- . Lactational oestrus in the sow. 1. The effect of the interval between farrowing and grouping on the incidence and timing of lactational oestrus in sows. Anim Prod. 1981;32:315–323
- . Rearing pigs in species-specific family groups. Anim Welfare. 1996;5:25–35
- . Sow body condition at weaning and reproduction results in organic piglet production. Acta Agri Scand A Anim Sci. 2009;59:93–103
- Jultved CR. Rapport over P-rapporternes resultater oktober 2006. Dansk Svineproduktion, notat nr. 0627, 2006.
- . Lactational oestrus in the sow. 2. The influence of group-housing, boar presence and feeding level upon the occurrence of oestrus in lactating sows. Anim Prod. 1982;34:283–290
- Lauritsen HB, Sørensen GS, Larsen VA. Organic pig production in Denmark. In: Ecological Animal Husbandry in the Nordic Countries, Hermansen JE, Lund V, Thuen E (Eds.), DARCOF Report 2, 2000, Danish Research Centre for Organic Farming, pp. 113-118.
- Agewean–the effect of weaning age on growing pig health and performance in the absence of antibiotic growth promoters. Proc Br Soc Anim Sci. 2008;10
- . Reproductive performance among sows group-housed during late lactation. Acta Vet Scand. 1998;39:237–250
- . Schwarzwild-report. Mein leben unter wildschweinen. Neumann Verlag. 1990;221 pp
- Danielsen V. Fodringsstrategier for diegivende søer. I, Jakobsen K, Danielsen V (Eds.), Optimal fording af søer. DJF-rapport 2006, 75, Danish Institute of Agricultural Sciences, pp. 26-28.
- . Pre- and post-weaning piglet performance, sow food intake and change in backfat thickness in a group-housing system for lactating sows. Acta Vet Scand. 1997;38:119–133
- . The effects of breed cross on performance and meat quality of once-bred gilts in a seasonal outdoor rearing system. Arch Tierz, Dummerstorf. 2005;48:359–371
- . Social dominance of female goats affects their response to the mail effect. Appl Anim Behav Sci. 2003;84:119–126
- DARCOF. Principles of Organic Farmining. Discussion document prepared for the DARCOF Users Committee. Danish Research Centre for Organic Farming, 2000, 34 pp.
PII: S0093-691X(09)00356-2
doi: 10.1016/j.theriogenology.2009.07.014
© 2009 Elsevier Inc. All rights reserved.
« Previous
Next »
Theriogenology
Volume 72, Issue 9
, Pages 1188-1194
, December 2009
