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Titolo:
SUPEROVULATORY RESPONSE OF MURCIANA GOATS TO TREATMENTS BASED ON PMSGANTI-PMSG OR COMBINED FSH/MSG ADMINISTRATION/
Autore:
PINTADO B; GUTIERREZADAN A; LLANO BP;
Indirizzi:
INIA,DEPT REPRODUCC ANIM & CONSERVAC RECURSOS ZOOGENET,CTR CORUNA KM 5-900 MADRID 28040 SPAIN
Titolo Testata:
Theriogenology
fascicolo: 3, volume: 50, anno: 1998,
pagine: 357 - 364
SICI:
0093-691X(1998)50:3<357:SROMGT>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
DAIRY GOATS; ANTI-PMSG; SERUM GONADOTROPIN; SUPER-OVULATION; HEIFERS; CATTLE; FSH;
Keywords:
GOAT; SUPEROVULATION; ANTI-PMSG; LUTEAL REGRESSION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
B. Pintado et al., "SUPEROVULATORY RESPONSE OF MURCIANA GOATS TO TREATMENTS BASED ON PMSGANTI-PMSG OR COMBINED FSH/MSG ADMINISTRATION/", Theriogenology, 50(3), 1998, pp. 357-364

Abstract

Superovulation in goats is frequently restricted by the cost of gonadotropin or the handling requirements. In this situation PMSG has the advantage of a lower cost and single dose protocol, but the variabilityof response obtained restricts its use. Thus, 2 alternative treatments with the advantages of PMSG were tested. In Experiment I, we compared the ovulatory response of does treated with PMSG in combination or not with anti-PMSG antibodies at the onset of estrus, during season andout of season. In Experiment 2, we explored the effect of a partial substitution of FSH by PMSG at the end of treatment, comparing this treatment with a standard FSH protocol. Our results showed a significant (P<0.01) seasonal effect on the incidence of corpora lutea (CL) regression in both experiments. The mean of viable embryos collected from does treated with anti-PMSG antibodies (mean = 5.75) was significantly higher than in the control PMSG-treated group (mean = 2.74) during spring (P<0.05). Response during the fall was significantly lower regardless of treatment, and administration of antibody did not provide any significant improvement in superovulatory response (2.14 vs 1.77). In Experiment 2, the partial substitution of 3 doses of FSH by a single administration of PMSG did not reduce the number of CL or viable embryos,and no seasonal differences were observed, comfirming that FSH provides a less variable response. From our results, it can be concluded that the use of PMSG antibodies for superovulating goats is an efficacious treatment which increases the number of viable embryos collected. However, partial replacement of FSH with PMSG at the end of treatment also did not compromise the number of embryos collected. Both approachescan be considered a valid alternative to treatments based on FSH. (C)1998 by Elsevier Science Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 00:17:47