Early-weaned sows: Altrenogest therapy, estrus, ovulation, and reproductive performance

Animal Reproduction Science

Volumn 84, Issue 3-4, 2004, Pages 407-413

  Santos, José Maurício Gonçalves Dos ^a   Wentz, Ivo ^b   Bortolozzo, Fernando Pandolfo ^b   Barioni Jr , Waldomiro ^c  

^a STATE UNIVERSITY OF MARINGÁ   (Brazil)

^b FEDERAL UNIVERSITY OF RIO GRANDE DO SUL   (Brazil)

^c Ctro Nac Pesquisa em Suinos A   (Brazil)

Author keywords

Altrenogest; Early weaning; Estrus; Litter size; Ovulation; Sow reproduction

Indexed keywords

ALTRENOGEST; DRUG DERIVATIVE; PROGESTERONE DERIVATIVE; TRENBOLONE;

ANIMAL; ANIMAL DISEASE; ARTICLE; ARTIFICIAL INSEMINATION; DRUG EFFECT; ESTRUS; FEMALE; LITTER SIZE; MALE; NEWBORN; OVULATION; OVULATION DETECTION; PHYSIOLOGY; PREGNANCY; RANDOMIZATION; REGRESSION ANALYSIS; SWINE; WEANING;

ANIMALS; ANIMALS, NEWBORN; ESTRUS; ESTRUS DETECTION; FEMALE; INSEMINATION, ARTIFICIAL; LEAST-SQUARES ANALYSIS; LITTER SIZE; MALE; OVULATION; OVULATION DETECTION; PREGNANCY; PROGESTERONE CONGENERS; RANDOM ALLOCATION; SWINE; TRENBOLONE; WEANING;

PIERIS BRASSICAE; SUS SCROFA;

EID: 4143064921     PISSN: 03784320     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.anireprosci.2004.02.011     Document Type: Article

References (27)

1. Alexander T.J., Thorton K., Boon G., Lysons R.J., Gush F. Medicated early weaning to obtain pigs free from pathogens endemic in the herd of origin. Vet. Rec. 106:1980;114-119
2. Aumaitre A., Rettagliati J. Age au sevrage chez le porcelet: Répercussion sur la productivité des truies et influence sur les jeunes animaux. Journnés. Recherch Porcine en France. 21:1972;634-635
3. Clowes E.J., Aherne F.X., Foxcroft G.R. Effect of delayed breeding on the endocrinology and fecundity of sows. J. Anim. Sci. 72:1994;283-291
4. Heck, A., 1999. Caracterização do momento da ovulação e da duração do estro e do desempenho reprodutivo subseqüente em um rebanho suíno. Porto Alegre Universidade Federal do Rio Grande do Sul. Dissertação de mestrado, p. 108.
5. Heck, A., Bortolozzo, F.P., Wentz, Ivo, Martini, R.L., Stahlberg, R., Guidoni, A.L., Nagae, R., 1997. Determinação do momento da ovulação em porcas de granjas comerciais via diagnóstico ultra-sonográfico transcutâneo. In: Anais do VIII Congresso Brasileiro de Veterinários Especialistas em Suínos, pp. 333-334.
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. King, V., Xue, J.L., 1996. Database benchmarking summaries for breeding herds. In: Pigchamp® 1996 Annual Report, Section I: Breeding Herds Summaries pp. 3-23.
8. Koketsu Y., Dial G.D. Factors associated with prolonged weaning-to-mating interval among sows on farms that wean pigs early. J. Am. Vet. Med. Assoc. 211:1997;894-898
9. Koutsotheodoros F., Hughes P.E., Parr R.A., Dunshea F.R., Fry R.C., Tilton J.E. The effects of post-weaning prosgestagen treatment (regumate) of early-weaned primiparous sows on subsequent reproductive performance. Anim. Reprod. Sci. 52:1998;71-79
10. Kraeling R.R., Rampacek G.B., Kiser T.E. Failure of the orally active progestin, Regumate, to Overcome Confinement-Induced Delayed Puberty in Gilts. Therioginology. 17:1982;183-187
11. Mabry J.W., Culbertson M.S., Reeves D. Effects of lactation length on weaning-to-first-service interval, first-service farrowing rate and subsequent litter size. Swine Health Prod. 4:1996;185-188
12. Marsteller T.A., Armbruster G.A., Anderson D.B., Wuethrich A.J., Taylor T.L., Symanowski J.T. Effects of lactation length on ovulation rate and embryo survival in swine. Swine Health Prod. 5:1997;10-21
13. Mburu J.N., Einarsson S., Dalin A.M., Rodriguez-Martinez H. Ovulation as determined by transrectal ultrasonography in multiparous sows: relationships with oestrous symptoms and hormonal profiles. J. Vet. Med. Assoc. 42:1995;285-292
14. Pay M.G. The effect of short lactation on the productivity of sows. Vet. Rec. 92:1973;255-259
15. Peters A.R. Endocrine manipulation - toxicological frontiers. J. Reprod. Fertil. 45(Suppl.):1992;193-201
16. Santos, J. M. G., 1999. Desempenho Reprodutivo de porcas desmamadas aos 9-10 dias de lactação, submetidas ou não à terapia hormonal com altrenogest. Porto Alegre:Universidade Federal do Rio Grande do Sul. Dissertação de mestrado, p. 108.
17. Sas Institute Inc., 1996. Statistical Analysis System User's Guide, Cary, NC, USA.
18. Scott E. Pharmacological control of reproduction in pigs. J. Br. Vet. Soc.: Pig J. 32:1994;38-51
19. Self H.L., Grummer R.H. The rate and economy of pig gains and the reproductive behavior in sows when litters are weaned at 10 days, 21 days or 56 days of age. J. Anim. Sci. 17:1958;862-868
20. Soede N.M., Helmond F.A., Kemp B. Periovulatory profiles of oestradiol, LH and progesterone in relation to oestrus and embryo mortality in multiparous sows using transrectal ultrasonography to detect ovulation. J. Reprod. Fertil. 101:1994;633-641
21. Soede N.M., Kemp B. In synchronized pigs, the duration of ovulation is not affected by insemination and is not a determinant for early embryonic diversity. Therioginology. 39:1993;1043-1053
22. Stevenson J.S., Davis D.L., Pollmann D.S. Altrenogest and fat for summer breeding of primiparous sows. J. Anim. Sci. 61:1985;480-486
23. Svajgr A.J., Hays V.W., Cromwell G.L., Dutt R.H. Effect of lactation duration on reproductive performance of sows. J. Anim. Sci. 38:1974;100-105
24. Tilton S.L., Bates R.O., Prather R.S. Evaluation of response to hormonal therapy in prepubertal gilts of different genetic lines. J. Anim. Sci. 73:1995;3062-3068
25. Varley M.A., Peaker R.E., Atkinson T. Effect of lactation length of the sow on plasma progesterone, oestradiol 17-β and embryonic survival. J. Anim. Prod. 38:1984;113-119
26. Weitze K.F., Wagner-Rietschel H., Waberski D., Richter L., Krieter J. The onset of heat after weaning, heat duration, and ovulation as major effects in AI timing in sows. Reprod. Domest. Anim. 29:1994;433-443
27. Xue J.L., Dial G.D., Marsh W.E., Lucia T. Association between lactation length and sow reproductive performance and longevity. J. Am. Vet. Med. Assoc. 210:1997;935-938