Management factors associated with swine breeding-herd productivity in the United States

Preventive Veterinary Medicine

Volumn 35, Issue 4, 1998, Pages 255-264

  King, Vickie L ^a   Koketsu, Yuzo ^a   Reeves, David ^a   Xue, Jinliang ^a   Dial, Gary D ^a  

^a UNIVERSITY OF MINNESOTA   (United States)

Author keywords

Breeding herds; Pig management; Reproductive efficiency

Indexed keywords

ANIMAL; ANIMAL HUSBANDRY; ARTICLE; BREEDING; FEMALE; LACTATION; PHYSIOLOGY; SWINE; UNITED STATES; WEANING;

ANIMAL HUSBANDRY; ANIMALS; BREEDING; FEMALE; LACTATION; SWINE; UNITED STATES; WEANING;

EID: 0032580820     PISSN: 01675877     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0167-5877(98)00068-3     Document Type: Article

References (22)

1. Almond, G.W., Dial, G.D., 1986. Pregnancy diagnosis in swine: A comparison of the accuracies of mechanical and endocrine tests with return to estrus. J. Amer. Vet. Med. Assoc. 189, 1567-1571.
2. Aumaitre, A., Dagorn, J., Legault, C., Le Denmat, M., 1976. Influence of farm management and breed type on sow conception-weaning interval and productivity in France. Livest. Prod. Sci. 3, 75-83.
3. Bowman, G.L., Ott, S.L., Bush, E.J., 1996. Management effects on preweaning mortality: A report of the NAHMS national swine survey. Swine Health Prod. 4, 25-32.
4. Clark, L.K., Leman, A.D., 1986. Factors that influence litter size in pigs: Part 1. Pig News and Information 7, 303-310.
5. Dagorn, J., Aumaitre, A., 1979. Sow culling: reasons for and effect on productivity. Livestock Prod. Sci. 6, 167-177.
6. D'Allaire, S., Stein, T.E., Leman, A.D., 1987. Culling patterns in selected Minnesota swine herds. Can. J. Vet. Res. 51, 506-512.
7. Dewey, C.E., Martin, S.W., Friendship, R.M., Wilson, M.R., 1994. The effects on litter size of previous lactation length and previous weaning-to-conception interval in Ontario swine. Prev. Vet. Med. 18, 213-223.
8. Draper, N.R., Smith, H., 1981. Applied Regression Analysis, 2nd ed. Wiley, New York.
9. Dial, G.D., Marsh, W.E., Polson, D.D., Vaillancourt, J.P., 1992. Reproductive failure: Differential diagnosis. In: Leman, A.L., Straw, B.E., Mengeling, W.L., D'Allaire, S., Taylor, D.J. (Eds.), Diseases of Swine, 7th ed. Iowa State University Press, Ames, IA, pp. 88-137.
10. Kelsey, J.L., Thompson, W.D., Evans, A.S., 1986. Methods in Observational Epidemiology. Oxford University Press, Oxford, New York.
11. Kleinbaum, D.G., Kupper, L.L., Muller, K.E., 1988. Applied Regression Analysis and Other Multivariable Methods. PWS-KENT Publishing Company, Boston.
12. Koketsu, Y., Dial, G.D., 1997. Factors influencing the post weaning reproductive performance of sows on commercial farms. Theriogenology 47, 1445-1461.
13. Koketsu, Y., Dial, G.D., King, V.L., 1997. Influence of various factors on farrowing rate on farms using early weaning. J. Anim. Sci. 75, 2580-2587.
14. Kroes, Y., van Male, J.P., 1979. Reproductive lifetime of sows in relation to economy of production. Livestock Prod. Sci. 6, 179-183.
15. Marsh, W.E., van Lier, P., Dial, G.D., 1992. A profile of swine production in North America: II. PigCHAMP® breeding herd data analysis for 1990. Int. Pig Vet. Soc. Cong. (Abstr.) 12, 584.
16. Muirhead, M.R., 1978. Constraints on productivity in the pig herds. Vet Rec. 102, 228-231.
17. PigCHAMP, 1996. PigCHAMP Reports Manual. University of Minnesota. St. Paul.
18. SAS, 1988. SAS/Stat7 User's Guide (Release 6.03). SAS Inst. Inc., Cary, NC.
19. Stein, T.E., Duffy, S.J., Wickstrom, S., 1990. Differences in production values between high- and low-productivity swine breeding herds. J. Anim. Sci. 68, 3972-3979.
20. Svajgr, A.L., Hays, V.W., Cromwell, G.L., 1974. 1974. Effect of lactation duration on reproductive performance of sows. J. Anim. Sci. 38, 100-105.
21. Vaillancourt, J.P., Stein, T.E., Marsh, W.E., Leman, A.D., Dial, G.D., 1990. Validation of producer-recorded causes of preweaning mortality in swine. Prev. Vet. Med. 10, 119-130.
22. Wilson, M.R., Friendship, R.M., McMillan, I., Hacker, R.R., Piper, R., Swaminathan, S., 1986. A survey of productivity and its component interrelationships in Canadian swine herds. J. Anim. Sci. 62, 576-582.