Induction of ovarian activity in anestric goats through different degrees of contact with estrus females

Arturo Ramírez Braulio; Lorenzo Álvarez Ramírez; Andrés E. Ducoing W; Abel M. Trujillo García; Javier Gutiérrez Molotla; Luis A. Zarco Quintero

2001, Number 1

<< Back Next >>

Vet Mex 2001; 32 (1)

Induction of ovarian activity in anestric goats through different degrees of contact with estrus females

Ramírez BA, Álvarez RL, Ducoing WAE, Trujillo GAM, Gutiérrez MJ, Zarco QLA

Full text

How to cite this article

Language: English/Spanish
References: 23
Page: 13-17
PDF size: 46.41 Kb.

ABSTRACT

The objective of the present study was to evaluate the induction of ovarian activity in anestric goats through different degrees of contact with females induced to estrus with the use of hormones. Thirty three anestric goats were allocated to one of four groups: Group I (n = 8), goats that were exposed to the presence of nine females with induced estrus in the same pen; Group II (n = 9), goats that were kept in a pen next to Group I divided by a solid clear fence; Group III (n = 8), goats that were kept in a pen next to Group I, opposite to Group II, divided by a solid dark fence; and Group IV (isolated Group, n = 8), goats that were isolated from the other groups. In the induced estrus Group, 66.6% of the females ovulated in response to the hormonal treatment, whereas Group I had 25% of induction (P › 0.05). Groups II, III and IV did not show ovarian activity. Results suggest that direct full contact is needed for induction of ovulation in anestric goats through the female effect.

REFERENCES

Amoah EA, Briant MJ. A note on the effect of contact with male goats on occurrence of puberty in female goat kids. Anim Prod 1984;38:141-144.
2. Ott RS, Nelson DR, Hixon JE. Effect of presence of the male on initiation of estrous cycle activity of goats. Theriogenology 1980;13:183-190.
3. Knight TW, Tervit HR, Lynch PR. Effects of boar pheromones, ram’s wool and presence of bucks on ovarian activity in anovular ewes early in the breeding season. Anim Reprod Sci 1983;6:129-134.
4. Knight TW. Are rams necessary for the stimulation of anoestrus ewes with oestrus ewes? Proc NZ Soc Anim Prod 1985;45:49-50.
5. Pearce GPM, Oldham CM. Importance of non-olfactory ram stimuli in mediating ram-induced ovulation in the ewe. J Reprod Fert 1988;84:333-339.
6. Chemineau P, Levy F, Thimonier J. Effects of anosmia on LH secretion, ovulation and oestrous behaviour induced by males in the anovular Creole goat. Anim Reprod Sci 1986;10:125-132.
7. Walkden-Brown SW, Restall BJ, Henniawati. The male effect in the Australian Cashmere goat. 2. Role of olfatory cues from the male. Anim Reprod Sci 1993b;32:55-67.
8. Walkden-Brown SW, Restall BJ, Henniawati. The male effect in the Australian Cashmere goat. 3. Enhancement with buck nutrition and use of oestrus females. Anim Reprod Sci 1993;32:69-84.
9. Restall BJ, Restall H, Walkden-Brown SW. The induction of ovulation in anovulatory goats by oestrous females. Anim Reprod Sci 1995;40:299-303.
Zarco QLA, Rodriguez EF, Angulo MRB, Valencia MJ. Female to female stimulation of ovarian activity in the ewe. Anim Reprod Sci 1995;39:251-258.
Álvarez RL, Ducoing WAE, Zarco QL, Trujillo GAM. Conducta estral, concentraciones de LH y función lútea en cabras en anestro estacional inducidas a ciclar mediante el contacto con cabras en estro. Vet Méx 1999;30:25-31.
Arvizu R. Reinicio de la actividad ovárica posparto en cabras paridas durante la época reproductiva (tesis de licenciatura). México (DF) México: Facultad de Medicina Veterinaria y Zootecnia. UNAM, 1995.
Ritar AJ, Maxwell WMC, Salomon S. Ovulation and LH secretion in the goat after intravaginal progesterone sponge-PMSG treatment. J Reprod Fert 1983;72:559-563.
Evans G, Robinson TJ. Reproductive potential and endocrinological response of sheep kept under controlled lighting. II. Pituitarial and gonadal resposes of ewes and rams to a six-monthly light cycle. Anim Reprod Sci 1980;3:39-56.
Martin GB, Oldham CM, Cognié Y, Pearce DT. The physiological response of anovulatory ewes to the introduction of rams – a review. Livest Prod Sci 1986;15:219-247.
Daniel WW. Introductory statistics with applications. Boston (Ms): Georgia State University, Houghton Mifflin Company, 1977.
Álvarez RL. Efecto de la anosmia y la conducta social sobre la secreción de LH y ovulación de cabras anéstricas inducidas a ciclar mediante el efecto hembra (tesis de maestría). México (DF) México: Facultad de Medicina Veterinaria y Zootecnia. UNAM, 2000.
Chemineau P. Possibilities for using bucks to stimulate ovarian and oestrus cycles in anovulatory goats – a review. Livest Prod Sci 1987;17:135-147.
Carrillo BA. Niveles de LH en cabras lecheras adultas tratadas con acetato de melengestrol y acetato de fluorogestona en época de anestro (tesis de licenciatura). México (DF) México: Facultad de Medicina Veterinaria y Zootecnia. UNAM, 1994.
Walkden-Brown SW, Restall BJ, Henniawati. The male effect in the Australian Cashmere goat. 1. Ovarian and behavioural response of seasonally anovulatory does following the introduction of bucks. Anim Reprod Sci 1993a;32:41-53.
Claus R, Over R, Dehnhard M. Effect of male odour on LH secretion and the induction of ovulation in seasonally anoestrous goats. Anim Reprod Sci 1990;22:27-38.
Morgan PD, Arnold GW, Lindsay DR. A note on the mating behaviour of ewes with various senses impaired. J Reprod Fert 1972;30:151-152.
Clutton-Brock TH, Albon SD, Guinness FE. Great expectations: dominance, breeding success and offspring sex ratios in red deer. Anim Behav 1986;34:460-471.