Comparison of endocrine changes, timing of ovulations, ovarian follicular growth, and efficacy associated with Estradoublesynch and Heatsynch protocols in Murrah buffalo cows (Bubalus bubalis)

Mirmahmoudi, R.; Souri, M.; Prakash, B.S.

doi:10.1016/j.theriogenology.2014.07.026

Cited by 15 publications

(12 citation statements)

References 18 publications

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“…Among the control group, only two animals (20%) exhibited spontaneous estrus during the period of 90-day follow-up ( Table-1 ). The estrus synchronization rates achieved with Doublesynch and Estradoublesynch protocols concurred well with previous reports in crossbred anestrus cattle [ 13 ] and in acyclic buffaloes [ 14 , 20 ], but were higher than 70% each reported by Parida et al . [ 21 ] in buffaloes.…”

Section: Resultssupporting

confidence: 91%

“…Even whether plasma protein and cholesterol levels are altered by these protocols of estrus synchronization is also scarce in cattle [ 13 ]. Moreover, the estrus response and conception rates with the use of Doublesynch and Estadoublesynch protocols in both cyclic and acyclic bovines were quite encouraging in earlier studies [ 14 - 17 ]. Hence, this study was aimed to evaluate if Doublesynch and Estradoublesynch protocols induce successful ovulatory estrus, modulate plasma progesterone, protein, and cholesterol profile, and enhance fertility in pubertal anestrus Gir heifers under field conditions.…”

Section: Introductionmentioning

confidence: 80%

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Effect of Doublesynch and Estradoublesynch protocols on estrus induction, conception rate, plasma progesterone, protein, and cholesterol profile in anestrus Gir heifers

Chaudhary

Dhami

et al. 2018

Vet World

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AimThis study aimed to evaluate the efficacy of Doublesynch and Estradoublesynch protocols on estrus induction, conception rates, plasma progesterone, protein, and cholesterol profile in anestrus Gir heifers.Materials and MethodsIn this study, 50 pubertal anestrus Gir heifers were selected from the field and farm conditions. The heifers were dewormed (injection ivermectin, 100 mg, s/c) and supplemented with minerals and vitamins (injection organic phosphorus 800 mg and injection Vitamin AD3E and Biotin 10 ml i/m) and multi-mineral bolus at 1 bolus daily for 7 days. The heifers were randomly divided into three groups: Doublesynch (n=20), Estradoublesynch (n=20), and control (n=10). The animals were monitored for estrus response, estrus interval, behavioral signs, and conception rates after induced/first, second, and third cycle post-treatment. Blood samples were obtained on day 0, day 9, day 12, and on day 12 post-artificial insemination (AI) for determination of plasma progesterone, protein, and cholesterol profile.ResultsThe estrus response rate between Doublesynch and Estradoublesynch protocols was similar between treated heifers (85% and 95%). The interval from the second prostaglandin F2α (PGF2α) injection to estrus induction did not differ between the groups (63.87±4.19 vs. 58.27±3.83 h). The conception rates following induced estrus (20% vs. 30%), at the second cycle (23.07% vs. 16.66%), at the third cycle (22.22% vs. 30.00%), and the overall conception rate (45% and 55%) within 27.89±5.75 and 26.45±5.48 days were the same across the treatment groups. The mean plasma progesterone concentrations were significantly (p<0.01) higher on day 9 (second PGF2α injection) and day 12 post-AI compared to day 0 (first PGF2α injection) and the day of fixed-timed artificial insemination. The concentrations were also significantly (p<0.05) higher in conceived than non-conceived heifers on day 9 of treatment and day 12 post-AI in both the protocols. The mean plasma cholesterol concentrations were significantly higher during peak follicular and luteal phases compared to the initial anestrus phase in both the protocols. The values were also higher in non-conceived than conceived animals in both the protocols. The plasma protein profile was not influenced by the sampling days or conceived and non-conceived status.ConclusionThe results showed that both Doublesynch and Estradoublesynch protocols resulted in similar estrus induction and conception rates with modulation of plasma progesterone and cholesterol profile in anestrus Gir heifers.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 80%

Effect of Doublesynch and Estradoublesynch protocols on estrus induction, conception rate, plasma progesterone, protein, and cholesterol profile in anestrus Gir heifers

Chaudhary

Dhami

et al. 2018

Vet World

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“…TriU-B being newly launched product, no report on its use could be seen in the literature, except one of our own (Buhecha et al, 2016). Similarly, it was difficult to find report on use of Heatsynch protocol in buffaloes, except that of Mirmahmoudi et al (2014), wherein the estrus induction response was relatively poor in both cyclic and acyclic buffaloes. The comparable conception rates at induced estrus and overall of three cycles in Ovsynch and CIDR protocols have been documented by Baruselli et al (2003) as 52.50 and 28.20 %, Naikoo et al (2010) as 50.00 and 50.00 % and Ali et al (2012) as 60.00 and 33.33 %, respectively.…”

Section: Estrus Induction and Fertility Response To Synchronization Pmentioning

confidence: 99%

Effect of Various Ovulation Synchronization Protocols on Estrus Response, Conception Rate and Blood Biochemical Profile in Anoestrus Buffaloes

Buhecha

Dhami

Theodore

et al. 2016

IJAVST

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This study evaluated the fertility response and plasma profile of biochemical and mineral constituents in 46 postpartum anoestrus (>90 days) buffaloes treated under field conditions with TriU-B/PRID, Ovsynch and Heatsynch protocols (n=12 each), keeping untreated anoestrus control (n=10) and normal cyclic control (n=10) groups. The estrus induction response with 3 treatment protocols was 83.33, 83.33 and 91.66 % respectively within 2-3 days of PGF 2 α injection. The conception rates (CRs) obtained at induced estrus in buffaloes under TriU-B, Ovsynch and Heatsynch protocols were 25.00, 33.33 and 25.00 %, and those of overall three cycles' 50.00, 58.33 and 50.00 %, respectively, which were at par with normal cyclic control group (CR at first cycle 30.00 & overall of 3 cycles 50.00 %). Among untreated anoestrus control group, only two buffaloes (20%) exhibited estrus and conceived over 90 days follow up. The overall pooled mean plasma total cholesterol concentrations (mg/dl) in anoestrus buffaloes under TriU-B and in normal cyclic control group were the same (166.70±5.28 and 165.18±6.37) and significantly (P<0.01) higher than in Ovsynch (131.54±3.71) and lower than in Heatsynch (186.14±5.69) group. The value for total protein (g/dl) was significantly (P<0.05) lower in TriU-B (7.27±0.08) followed by other two groups (7.62±0.07 & 7.44±0.07) and highest in normal control group (7.98±0.10). The calcium was significantly higher (P<0.05) in Ovsynch (10.41±0.07 mg/dl) than other 3 groups (8.82±0.11 to 9.09±0.09 mg/dl), while inorganic phosphorus (3.99±0.10 to 4.29±0.13 mg/dl) did not vary between groups. Normal cyclic control buffaloes had significantly higher protein and lower calcium levels than in most treatment groups. The conceived buffaloes had apparently higher values of total cholesterol and protein as compared to non-conceived ones in all groups. In general, Ovsynch protocol was the best followed by TriU-B and Heatsynch for induction of estrus and improvement of fertility in anoestrus buffaloes.

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“…More than 50% of the world population of 148 million buffaloes is reared in India. Late maturity, silent heat coupled with poor expression of estrus, irregular estrous cycle, seasonality in breeding, anoestrus, low conception rate, long postpartum interval, and repeat breeding are the well-known drawbacks leading to low productivity in this species [ 2 - 4 ]. Pubertal development involves physical, behavioral, and hormonal changes that are linked to the activation of the hypothalamic-adenohypophyseal-gonadal axis [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of extended photoperiod during winter on growth and onset of puberty in Murrah buffalo heifers

Roy¹,

Singh²,

Kumar³

et al. 2016

Vet World

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Aim:To investigate the effect of extended photoperiod on growth rate, hormonal levels, and puberty in Murrah heifers.Materials and Methods:About 14 Murrah buffalo heifers were divided into normal day photoperiod (NDP; n=7) and extended NDP (ENDP; n=7) groups. The ENDP group was exposed to 4 h of extended photoperiod with artificial light (160 lux) after sunset for 3 months during winter.Results:Group, age and group-by-age interaction effects on plasma glucose concentrations were non-significant (p>0.05). A significant effect of age on non-esterified fatty acids (p<0.05), cholesterol (p<0.01), and triglycerides (p<0.05) concentrations was observed. Group and group-by-age interaction effects on plasma T3, T4, leptin, 17 β estradiol, prolactin and melatonin concentrations were non-significant (p>0.05) while significant (p<0.05) age effect on T4, leptin and melatonin concentrations was observed. With respect to the circadian pattern of melatonin and prolactin, the group, time and group-by-time interaction effects were non-significant (p>0.05). Average daily gain and dry matter intake of heifers were non-significant between the NDP and ENDP groups but were comparatively higher in ENDP group. By the end of the experiment, 6 out of 7 heifers attained puberty in ENDP group in comparison to 4 out of 7 in NDP group.Conclusion:Extending the photoperiod by artificial light for 4 h during winter season resulted in better growth rate and early onset of puberty in Murrah buffalo heifers.

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Comparison of endocrine changes, timing of ovulations, ovarian follicular growth, and efficacy associated with Estradoublesynch and Heatsynch protocols in Murrah buffalo cows (Bubalus bubalis)

Cited by 15 publications

References 18 publications

Effect of Doublesynch and Estradoublesynch protocols on estrus induction, conception rate, plasma progesterone, protein, and cholesterol profile in anestrus Gir heifers

Effect of Doublesynch and Estradoublesynch protocols on estrus induction, conception rate, plasma progesterone, protein, and cholesterol profile in anestrus Gir heifers

Effect of Various Ovulation Synchronization Protocols on Estrus Response, Conception Rate and Blood Biochemical Profile in Anoestrus Buffaloes

Effect of extended photoperiod during winter on growth and onset of puberty in Murrah buffalo heifers

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