Resumption of ovarian cyclicity and fertility response in bull-exposed postpartum buffaloes

Gokuldas, P.P.; Yadav, Mahesh; Kumar, Harendra; Singh, Gyanendra; Mahmood, S.; Tomar, Alka

doi:10.1016/j.anireprosci.2010.06.005

Cited by 16 publications

(15 citation statements)

References 26 publications

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“…A significantly lower number of days from start of experiment to standing heat in bull exposed group than bull partial exposed and non-exposed animals was an indication that a longer bull exposure per day might result in a stronger biostimulatory effect and an earlier ovarian stimulation in anestrus buffaloes even during peak summer. Similar observations have been reported in Murrah buffaloes during winter season (Gokuldas et al, 2010). It is known that resumption of ovarian cycling activity is characterized by the release of GnRH from the hypothalamus in low amplitude, high frequency temporal release pattern (Wright et al, 1992), resulting in release of low amplitude, high frequency pulses of LH that help in maturation of Graffian follicle and stimulates ovulation.…”

Section: Discussionsupporting

confidence: 84%

“…In the present study, the anestrus buffaloes that were also passing through peak summer (June, July), when exposed to a bull 24 h a day, showed estrus expression in 60% cases followed by 40% estrus incidence in animals exposed to bull for 1 h per day and only 5% in non exposed group. Presence of males has also been found to enhance the estrus expression in Murrah buffaloes in winter (Gokuldas et al, 2010) and early postpartum period (Barman et al, 2011). A significantly lower number of days from start of experiment to standing heat in bull exposed group than bull partial exposed and non-exposed animals was an indication that a longer bull exposure per day might result in a stronger biostimulatory effect and an earlier ovarian stimulation in anestrus buffaloes even during peak summer.…”

Section: Discussionmentioning

confidence: 99%

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Effect of Biostimulation on Estrus Expression, Resumption of Ovarian Activity and Conception Rate in Postpartum Anestrus Nili-Ravi Buffaloes during Low Breeding Season

Zaidi¹

2018

PVJ

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This study evaluated the effect of biostimulation by bull exposure on estrus expression, resumption of ovarian activity, and fertility in anestrus, pluriparous buffaloes (Bubalus bubalis) during the low breeding season (May to July, 2012). Non pregnant, lactating Nili-Ravi buffaloes that depicted no corpus luteum (CL) on ovaries as palpated per rectum twice at 11 days interval, were divided in to bull exposed (24 h exposure per day, N=20, BE), bull partial exposed (1 h per day, N=20, BP) and bull non-exposed (no bull exposure, N=20, BN) groups. Estrus expression and interval to service from start of experiment were recorded over 60 days (June and July). Pregnancy was assessed at day 60 post service. The number of animals that showed behavioural estrus was significantly higher (P<0.05) in BE (60%) and BP (40%) than BN (5%) group while BE and BP groups did not differ significantly. Progesterone profile in 5 animals per group (once a week blood sampling) indicated ovarian activity matching with visually observed estrus expression. Interval to service from start of experiment was less (P<0.05) in BE than BP and BN groups (26.3±4.9, 37.0±3.7, 40.0±0.4 days, respectively); the difference being non-significant between BP and BN groups. Pregnancy rate was significantly higher in BE (40%) and BP (20%) groups than BN (0%) group (P<0.05); the difference being non-significant between BE and BP groups. It was concluded that biostimulation for 24 h per day revived ovarian cyclicity in 60% anestrus buffaloes during low breeding season.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Effect of Biostimulation on Estrus Expression, Resumption of Ovarian Activity and Conception Rate in Postpartum Anestrus Nili-Ravi Buffaloes during Low Breeding Season

Zaidi¹

2018

PVJ

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“…Exposure of postpartum cows (Tauck et al, 2010) and buffalo (Gokuldas et al, 2010) to a bull decreases the postpartum anestrus interval and advances the puberty in heifers. It can be elicited with vasectomized bulls, andronized females or steers.…”

Section: Preventionmentioning

confidence: 99%

Anestrus in Cattle and Buffalo: Indian Perspective

Kumar¹,

Singh²,

Kharche³

et al. 2014

Adv. Anim. Vet. Sci.

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Anestrus is a functional disorder of reproductive cycle in cattle and buffalo which is characterized by absence of overt signs of estrus and also affecting the livestock enterprise to a great extent. Incidence of anestrus is more in buffalo than the cattle, and problem is severe during summer. Anestrus is a multifactorial problem but its occurrence signals the inadequate nutrition, environmental stress, uterine pathology and improper managemental practices. It can be classified based on physiological and pathological conditions of the animals. Diagnosis is based on the exploration of the different causative factors involved in. Many therapeutic agents (hormonal and non hormonal) have been used, however, as such there is no single panacea to correct it. Though, recruitment and emergence of follicular wave is usually not affected, the derangement in subsequent growth and development and ovulation of dominant follicle leads to anovulatory anestrus. In order to achieve efficient management strategies, further research is needed for better understanding of its etiology, diagnosis and therapeutics. All copyrights reserved to Nexus® academic publishers

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“…Various externally detectable physical changes around the time of estrus are not consistently exhibited by all animals. Therefore, it is imperative to find out the most reliable signs like physical activity, bellowing, swelling of the vulva reddening of the vestibular mucosa, chin resting over the rump of the herd mate, mucous discharge, reduction of milk yield around estrus and frequent voiding of small quantities of urine [5][6][7] and/or techniques like use of teaser animal, ultrasonography, milk/serum progesterone and estrogen concentration, rectal palpation of ovary, uterus and time-lapse video recording etc., [8][9][10] or combination of both which can be employed to identify animal in heat most accurately and effectively in buffaloes. Information on female sexual behaviour of buffaloes is few and no structured information is available for these traits for Surti buffaloes under this agro-climatic region.…”

Section: Introductionmentioning

confidence: 99%

Facets of Estrus Behavior in Surti Buffaloes

Gamit¹,

Singh²

2015

J Adv Dairy Res

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The Investigation was undertaken on sixteen healthy Surti buffaloes to document and characterize female sexual/ estrus behavior in Surti buffaloes maintained at Livestock Research Station, Navsari Agricultural University, Navsari, Gujarat. Perusal of data revealed that in about 56.25 per cent of animals showed estrus during morning while remaining 42.75 percent in the evening time. Result of this study indicated that restlessness, frequent urination and sniffing of vagina, chin resting, chasing, bellowing, being mounted by others, mounting others and tail raising was the estrus specific signs in Surti buffaloes. The overall estrus duration, onset of estrus to ovulation and estrus duration after end of estrus were 22.19 ± 0.75, 31.50 ± 0.87 and 9.31 ± 0.48 hrs, respectively.

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Resumption of ovarian cyclicity and fertility response in bull-exposed postpartum buffaloes

Cited by 16 publications

References 26 publications

Effect of Biostimulation on Estrus Expression, Resumption of Ovarian Activity and Conception Rate in Postpartum Anestrus Nili-Ravi Buffaloes during Low Breeding Season

Effect of Biostimulation on Estrus Expression, Resumption of Ovarian Activity and Conception Rate in Postpartum Anestrus Nili-Ravi Buffaloes during Low Breeding Season

Anestrus in Cattle and Buffalo: Indian Perspective

Facets of Estrus Behavior in Surti Buffaloes

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