Hormonal therapy for sows weaned during fall and winter

Journal of Animal Science

Volumn 78, Issue 8, 2000, Pages 2068-2071

  Bates, R O ^a   Kelpinski, J ^a   Hines, B ^a   Ricker, D ^a,b  

^a MICHIGAN STATE UNIVERSITY   (United States)

^b Box 189 ^*  (United States)

Author keywords

Hormones; Lactation Duration; Pigs; Seasons; Therapy

Indexed keywords

SUS SCROFA;

CHORIONIC GONADOTROPIN; SERIC GONADOTROPIN;

ANIMAL; ARTICLE; ESTRUS; FEMALE; LACTATION; REGRESSION ANALYSIS; SEASON; SWINE; WEANING;

ANIMALS; CHORIONIC GONADOTROPIN; ESTRUS; FEMALE; GONADOTROPINS, EQUINE; LACTATION; LEAST-SQUARES ANALYSIS; SEASONS; SWINE; WEANING;

EID: 0034243508     PISSN: 00218812     EISSN: None     Source Type: Journal    
DOI: 10.2527/2000.7882068x     Document Type: Article

References (16)

1. Bates, R. O., B. N. Day, J. H. Britt, L. K. Clark, and M. A. Brauer. 1991. Reproductive performance of sows treated with a combination of pregnant mare's serum gonadotropin and human chorionic gonadotropin at weaning in the summer. J. Anim. Sci. 69:894-898.
2. Britt, J. H., B. N. Day, S. K. Webel, and M. A. Brauer. 1989. Induction of fertile estrus in prepuberal gilts by treatment with a combination of pregnant mare's serum gonadotropin and human chorionic gonadotropin. J. Anim. Sci. 67:1148-1153.
3. Britt, J. H., V. E. Szarek, and D. G. Levis. 1983. Characterization of summer infertility in large confinement units. Theriogenology 20:133-140.
4. Estienne, M. J., and T. G. Hartsock. 1998. Effect of exogenous gonadotropins on the weaning-to-estrus interval in sows. Theriogenology 49:823-828.
5. Hurtgen, J. P., and A. D. Leman. 1979. Effect of parity and season of farrowing on the subsequent farrowing interval of sows. Vet. Rec. 108:32-34.
6. Kerr, J. C. and N. D. Cameron. 1995. Reproductive performance of pigs selected for components of efficient lean growth. Anim. Sci. (Pencaitland) 60:281-290.
7. Kirkwood, R. N., F. X. Aherne, and G. R. Foxcroft. 1998. Effect of gonadotropin at weaning on reproductive performance of primiparous sows. Swine Health Prod. 6:51-55.
8. Leenhouwers, J. I., T. van der Lende, and E. F. Knol. 1999. Analysis of stillbirth in different lines of pigs. Livest. Prod. Sci. 57:243-253.
9. Prathalingam, N. S., S. A. Edwards, F. M. Davidson, W. Healey, L. Prieto, A. Tarongi, and P. R. English. 1999. Prediction and manipulation of weaning to ovulation interval in the sow. In: Proc. BSAS Annu. Mtg. Scarborough, U.K. p 186.
10. Roehe, R. 1999. Genetic determination of individual birth weight and its association with sow productivity traits using Bayesian analyses. J. Anim. Sci. 77:330-343.
11. Schilling, E., and F. Cerne. 1972. Induction and syncronisation of oestrus in prepubertal gilts and anoestrus by a PMS/hCG compound. Vet. Rec. 91:471-474.
12. Sechen, A., J. C. Deschamps, J. A. G. Aleixo, and V. Bordignon. 1999. Effect of equine chorionic gonadotropin on weaning-to-first service interval and litter size of female swine. Theriogenology 51:1175-1182.
13. Tilton, S. L., R. O. Bates, and R. S. Prather. 1995. Evaluation of response to hormonal therapy in prepubertal gilts of different genetic lines. J. Anim. Sci. 73:3062-3068.
14. Tonn, S. A., Groothius, P. G., Boese, B. J., Blair, R. M., and D. Davis. 1995. Effect of vitamin A and gonadotropin treatments on estrus and early pregnancy for sows weaned at 5 to 11 (early) or 23 to 31 (late) d postpartum. J. Anim. Sci. 73 (Suppl. 1):91 (Abstr.).
15. Tubbs, R. C. 1997. Noninfectious causes of infertility and abortion. In: R. S. Younguist (ed.) Current Therapy in Large Animal Theriogenology. pp 754-757. W. B. Saunders Co., Philadelphia, PA.
16. Zaleski, H. M., and R. R. Hacker. 1993. Variables related to the process of parturition and probability of stillbirth in swine. Can. Vet. J. 34:109-113.