Factors affecting temporal relationships between estrus and ovulation in commercial sow farms

Animal Reproduction Science

Volumn 84, Issue 3-4, 2004, Pages 377-394

  Belstra, B A ^a   Flowers, W L ^a   See, M T ^a  

^a NORTH CAROLINA STATE UNIVERSITY   (United States)

Author keywords

Estrus; Insemination; Ovulation; Seasonal infertility; Sows

Indexed keywords

ANIMAL; ANIMAL DISEASE; ANIMAL HUSBANDRY; ARTICLE; ARTIFICIAL INSEMINATION; ESTRUS; FEMALE; GENOTYPE; LACTATION; MALE; METHODOLOGY; OVULATION; OVULATION DETECTION; PARITY; PHYSIOLOGY; PREGNANCY; REGRESSION ANALYSIS; SEASON; SWINE; TIME; WEANING;

ANIMAL HUSBANDRY; ANIMALS; ESTRUS; ESTRUS DETECTION; FEMALE; GENOTYPE; INSEMINATION, ARTIFICIAL; LACTATION; LEAST-SQUARES ANALYSIS; MALE; OVULATION; OVULATION DETECTION; PARITY; PREGNANCY; SEASONS; SWINE; TIME FACTORS; WEANING;

EID: 4143080539     PISSN: 03784320     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.anireprosci.2004.02.005     Document Type: Article

References (34)

1. Armstrong J.D., Britt J.H., Cox N.M. Seasonal differences in function of the hypothalamic-hypophysial-ovarian axis in weaned primiparous sows. J. Reprod. Fertil. 78:1986;11-20
2. Bazer F.W., Thatcher W.W., Martinat-Botte F., Terquis M. Sexual maturation and morphological development of the reproductive tract in Large White and prolific Chinese Meishan pigs. J. Reprod. Fertil. 83:1988;723-728
3. Corrêa M.N., Lucia T. Jr., Afonso J.A.B., Deschamps J.C. Reproductive performance of early-weaned female swine according to their estrus profile and frequency of artificial insemination. Theriogenology. 58:2002;103-112
4. Flowers W.L. Insemination programs for swine to increase fertility. J. Anim. Sci. 76:(Suppl. 3):1998;39-46
5. Hunter, R.H.F., 1994. Causes for failure of fertilization in domestic species. In: Zavy, M.T., Geisert, R.D. (Eds.), Embryonic Mortality in Domestic Species. CRC Press, Boca Raton, FL, USA, pp. 1-22.
6. Kemp B., Soede N.M. Relationship of weaning-to-estrus interval to timing of ovulation and fertilization in sows. J. Anim. Sci. 74:1996;944-949
7. Kemp B., Soede N.M. Consequences of variation in interval from insemination to ovulation on fertilization in pigs. J. Reprod. Fertil. Suppl. 52:1997;79-89
8. Knox R.V., Rodriguez-Zas S.L. Factors influencing estrus and ovulation in weaned sows as determined by transrectal ultrasound. J. Anim. Sci. 79:2001;2957-2963
9. Knox R.V., Miller G.M., Willenburg K.L., Rodriquez-Zas S.L. Effect of frequency of boar exposure and adjusted mating times on measure of reproductive performance in weaned sows. J. Anim. Sci. 80:2002;892-899
10. Koch G.G., Landis J.R., Freeman J.L., Freeman D.H., Lehnen R.G. A general methodology for the analysis of experiments with repeated measurement of categorical data. Biometrics. 33:1977;133-158
11. Kopperschmidt, P., 2000. The breed of sows influence on oestrus, ovulation, LH profile, and on the ovulation-advancing effect of seminal plasma. School of Veterinary Medicine, Hannover, Germany, Ph.D. Dissertation.
12. Love R.J., Evans G., Klupiec C. Seasonal effects on fertility in gilts and sows. J. Reprod. Fertil. Suppl. 48:1993;191-206
13. Lucia T. Jr., Corrêa M.N., Deschamps J.C., Peruzzo I.A., Matheus J.E.M., Aleixo J.A.G. Influence of equine chorionic gonadotropin on weaning-to-estrus interval and estrus duration in early-weaned, primiparous, female swine. J. Anim. Sci. 77:1999;3163-3167
14. Muller, K.E., Fetterman, B.A., 2002. Regression and ANOVA: An Integrated Approach Using SAS® Software. SAS Institute, Inc., Cary, NC, USA.
15. Nauk V., Sekrii I. The reproductive cycle in sows. Svinovodstvo. 3:1983;30-31
16. Nissen A.K., Soede N.M., Hyttel P., Schmidt M., D'Hoore L. The influence of time of insemination relative to time of ovulation on farrowing frequency and litter size in sows, as investigated by ultrasonography. Theriogenology. 47:1997;1571-1582
17. Paterson A.M., Foldes A. Melatonin and farm animals: endogenous rhythms and exogenous applications. J. Pineal Res. 16:1994;167-177
18. Perera A.N.M., Hacker R.R. The effects of different photoperiods on reproduction in the sow. J. Anim. Sci. 58:1984;1418-1422
19. PigCHAMP® Inc., 2002. Breeding Herd Summary for USA. Available at http://www.pigchampinc.com/2002Datashare_files/sheet03.htm. Accessed September 15, 2003.
20. Rydhmer L. Genetics of sow reproduction, including puberty, oestrus, pregnancy, farrowing and lactation. Livest. Prod. Sci. 66:2000;1-12
21. Signoret J.-P. Duration of oestrous cycle and oestrus under natural conditions and after oestrogen treatment of the ovariectomized gilt. Ann. Biol. Anim. Bioch. Biophys. 7:1967;407-421
22. Snedecor, G.W., Cochran, W.G., 1967. Statistical Methods. Iowa State University Press, Ames, IA, USA.
23. Soede N.M., Wetzels C.C.H., Zondag W., De Koning M.A.I., Kemp B. Effects of time of insemination relative to ovulation, as determined by ultrasonography, on fertilization rate and accessory sperm count in sows. J. Reprod. Fertil. 104:1995;99-106
24. Soede N.M., Kemp B. Expression of oestrus and timing of ovulation in pigs. J. Reprod. Fertil. Suppl. 52:1997;91-103
25. Sterning M. Oestrous symptoms in primiparous sows. 2. Factors influencing the duration and intensity of external oestrous symptoms. Anim. Reprod. Sci. 40:1995;165-174
26. Steverink D.W.B., Soede N.M., Bouwman E.G., Kemp B. Influence of insemination-ovulation interval and sperm cell dose on fertilization in sows. J. Reprod. Fertil. 111:1997;165-171
27. Steverink D.W.B., Soede N.M., Groenland G.J.R., van Schie F.W., Noordhuizen J.P.T.M., Kemp B. Duration of estrus in relation to reproduction results in pigs on commercial farms. J. Anim. Sci. 77:1999;801-809
28. Stokes, M.E., Davis, C.S., Koch, G.G., 1995. Categorical Data Analysis Using the SAS® System. SAS Institute Inc., Cary, NC, USA.
29. Tantasuparuk W., Lundeheim N., Dalin A.-M., Kunavongkrit A., Einarsson S. Reproductive performance of purebred Landrace and Yorkshire sows in Thailand with special reference to seasonal influence and parity number. Theriogenology. 54:2000;481-496
30. Tummaruk P., Lundeheim N., Einarsson S., Dalin A.M. Reprodutive performance of purebred Swedish Landrace and Swedish Yorkshire sows: II. Effect of mating type, weaning-to-first-service interval and lactation length. Acta Agric. Scand. Sec. A Anim. Sci. 50:2000;217-224
31. Varley, M.A., 1982. The time of weaning and its effects on reproductive function. In: Cole, D.J.A., Foxcroft, G.R. (Eds.), Control of Pig Reproduction. Butterworth Scientific, Boston, MA, USA, pp. 459-478.
32. Vesseur P.C., Kemp B., den Hartog L.A. The effect of the weaning to oestrus interval on litter size, live born piglets and farrowing rate in sows. J. Anim. Physiol. Anim. Nutr. 71:1994;30-38
33. Weitze K.F., Wagner-Rietschel H., Waberski D., Richter L., Krieter L. The onset of heat after weaning, heat duration and ovulation as major factors in AI timing in sows. Reprod. Domest. Anim. 91:1994;349-363
34. Willis H.J., Zak L.J., Foxcroft G.R. Duration of lactation, endocrine and metabolic state, and fertility of primiparous sows. J. Anim. Sci. 81:2003;2088-2102