Factors affecting longevity in maternal Duroc swine lines

Livestock Science

Volumn 100, Issue 2-3, 2006, Pages 121-131

  Tarrés, Joaquim ^a   Tibau, Joan ^b   Piedrafita, Jesús ^a   Fàbrega, Emma ^b   Reixach, Josep ^c  

^a UNIVERSITAT AUTÒNOMA DE BARCELONA   (Spain)

^b IRTA   (Spain)

^c Selección Batallé S A   (Spain)

Author keywords

Competing risks; Duroc swine; Longevity; Maternal lines; Sow productivity; Survival analysis

Indexed keywords

ANIMALIA; SUS SCROFA;

EID: 33646475980     PISSN: 18711413     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.livprodsci.2005.08.007     Document Type: Article

References (26)

1. Allison P.D. Survival Analysis Using the SAS® System. A Practical Guide (1995), SAS Institute, Inc., Cary, NC
2. Barnett J.L., Hemsworth P.H., Cronin G.M., Jongman E.C., and Hutson G.D. A review of the welfare issues for sows and piglets in relation to housing. Aust. J. Agric. Res. 52 (2001) 1-28
3. Brandt H., von Brevern N., and Glodek P. Factors affecting survival rate of crossbred sows in weaner production. Livest. Prod. Sci. 57 (1999) 127-135
4. Cox D.R. Regression models and life tables (with discussion). J. R. Stat. Soc., Ser. B 34 (1972) 187-220
5. Dial G., and Koketsu Y. Reproductive failure. Understanding the reasons that sows are culled for infertility. Int Pigletter (J. Deen Ed.) 16 (1996) 15-16
6. Dijkhuizen A.A., Krabbenborg R.M.M., and Huirne R.B.M. Sow replacement: a comparison of farmers' actual decisions and model recommendations. Livest. Prod. Sci. 23 (1989) 207-218
7. Ducrocq V.P. Survival analysis, a statistical tool for length of productive life data. 48th Annual Meeting of the European Association for Animal Production, August 25-28th, Vienna (1997)
8. Ducrocq V.P., and Sölkner J. The Survival Kit v3.12″, a FORTRAN package for large analysis of survival data. Proceedings of 6th World Congress on Genetics Applied to Livestock Production vol. 27 (1998), University of New-England, Armidale, Australia 447-450
9. Dürr J.W., Schneider M.P., Monardes H.G., and Cue R.I. Competing risks analysis of reasons for disposal in Quebec dairy herds. Proceedings of 7th World Congress on Genetics Applied to Livestock Production, Montpellier, France (2002)
10. Edwards S.A. Realising the potential of modern genotypes. Changing Times-Meeting the Challenge. Proceedings of the 23rd Annual Symposium (1995), Irish Pig Health Soc. 17-29
11. Elsley F.W.H., and Shirlaw D.W. Aspects of the energy nutrition of sows. Proceedings of the 27th Annual Meeting of the European Association for Animal Production, Zurich (1976)
12. Friendship R.M., Wilson M.R., Almond G.W., McMillan R.R., Hacker R., Pieper R., and Swaminathan S.S. Sow wastage: reasons for and effect on productivity. J. Vet. Res. 50 (1996) 205-208
13. Gaughan J.B., Cameron R.D.A., Dryden G.M., and Josey M.J. Effect of selection for leanness on overall reproductive performance in Large White sows. Anim. Prod. 61 (1995) 561-564
14. Hermesch S., Luxford B.G., and Graser H.-U. Genetic parameters for lean meat yield, meat quality, reproduction and feed efficiency traits for Australian pigs: 3. Genetic parameters for reproduction traits and genetic correlations with production, carcass and meat quality traits. Livest. Prod. Sci. 65 (2000) 261-270
15. Jørgensen B., and Sørensen M.T. Different rearing intensities of gilts: II. Effects on subsequent leg weakness and longevity. Livest. Prod. Sci. 54 (1998) 167-171
16. Kalbfleisch J.D., and Prentice R.L. The Statistical Analysis of Failure Time Data (1980), Wiley, New York
17. Kaplan E.L., and Meier P. Nonparametric estimation from incomplete observations. J. Am. Stat. Assoc. 53 (1958) 457-481
18. Kerr J.C., and Cameron N.D. Reproductive performance of pigs selected for components of efficient lean growth. Anim. Sci. 60 (1995) 281-290
19. Lopez-Serrano M., Reinsch N., Looft H., and Kalm E. Genetic correlations of growth, backfat thickness and exterior with stayability in Large White and Landrace sows. Livest. Prod. Sci. 64 (2000) 121-131
20. O'Dowd S., Hoste S., Mercer J.T., Fowler V.R., and Edwards S.A. Nutritional modification of body composition and the consequences for reproductive performance and longevity in genetically lean sows. Livest. Prod. Sci. 52 (1997) 155-165
21. Tarrés J., Puig P., Ducrocq V., and Piedrafita J. Factors influencing length of productive life and replacement rates in Bruna dels Pirineus beef breed. Anim. Sci. 78 (2004) 13-22
22. Tholen E., Bunter K.L., Hermesch S., and Graser H.-U. The genetic foundation of fitness and reproduction traits in Australian pig populations: II. Relationships between weaning to conception interval, farrowing interval, stayability and other common reproduction and production traits. Aust. J. Agric. Res. 47 (1996) 1275-1290
23. Tummaruk P., Lundeheim N., Einarsson S., and Dalin A.-M. Effect of birth litter size, birth parity number, growth rate, backfat thickness and age at first mating of gilts on their reproductive performance as sows. Anim. Reprod. Sci. 66 (2001) 225-237
24. Whittemore C.T., Smith W.C., and Phillips P. Fatness, live weight and performance responses of sows to food level in pregnancy. Anim. Prod. 47 (1988) 123-130
25. Yang H., Eastham P.R., Phillips P., and Whittemore C.T. Reproductive performance, body weight and body condition of breeding sows with differing body fatness at parturition, differing nutrition during lactation, and differing litter size. Anim. Prod. 48 (1989) 181-201
26. Yazdi M.H., Rydhmer L., Ringmar-Cederberg E., Lundeheim N., and Johansson K. Genetic study of longevity in Swedish Landrace sows. Livest. Prod. Sci. 63 (2000) 255-264