Efficiency of different synchronization protocols on oestrous response and rhythmic changes in 17β-oestradiol and progesterone hormone concentration in Salem Black goats

Gupta, P. S. P.; Tej, J. Nikhil Kumar; Johnson, Patricia A.; Nandi, S.; Mondal, Surajit; Kaushik, Kalpana; Krishna, K. M.

doi:10.1080/09291016.2019.1579885

Cited by 4 publications

(7 citation statements)

References 28 publications

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“…In G1 and G2 groups, the mean serum progesterone level were 1.81±17 ng/ml and 1.60±0.13 ng/ml at 5 th day after GnRH injection and decreased non-significantly (p>0.01) to 1.65±0.17 ng/ml and 1.48±0.10 ng/ml at 11 th days after PGF 2 α injection given at 9 th day, respectively. Similar decrease in mean serum progesterone level was reported as from 5.64±2.08 ng/ml to 1.90±0.26 ng/ml by Gupta et al (2019) in Salem black goats and 15.6 ng/ml to 1.9 ng/ml reported by Holtz et al (2008) in Boer goats by using 250 mcg Cloprostenol and 3.75 mg Luprostiol, respectively in their GPG protocols.…”

Section: Resultssupporting

confidence: 82%

Rhythmic Changes in Serum Progesterone and Estradiol-17β in Surti Goats under Different Synchronization Protocols

Yede

Khasatiya

Singh

et al. 2021

IJAR

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Background: Success of any estrous synchronization protocol to optimize production and reproduction in goats requires deeper insight of dynamic regulation of hormones progesterone and estradiol-17β. Surti goats reared mostly by marginal livestock owners are native to Gujarat. Present study was conducted to study rhythmic changes in serum progesterone and estradiol-17β in Surti goats under different synchronization protocols.Methods: 18 Surti goats were divided equally (n=6) in 3 groups viz. G1, G2 and G3 (control). G1 and G2 groups were injected with GnRH analogue (day 0 and 11) and PGF2α analogue (day 9). Progestogen sponge was kept intravaginal in G1 group (day 0) and removed (day 11) before GnRH analogue injection. G3 group (control) received placebo of 2 ml normal saline simultaneous to treatment groups.Result: Levels were higher at estrus and lower at day 30 for Estradiol-17β and vice versa for progesterone. Coefficient of variation for estradiol-17β at estrus and for progesterone at day 30 was lower for G1 and higher in control. It was concluded that GPG synchronization protocol with intravaginal progestogen was better to synchronize estrus and establish reproductive cyclicity in Surti goats as it effectively minimized variability of progesterone during pregnancy and estradiol-17β at estrus.

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Section: Resultssupporting

confidence: 82%

Rhythmic Changes in Serum Progesterone and Estradiol-17β in Surti Goats under Different Synchronization Protocols

Yede

Khasatiya

Singh

et al. 2021

IJAR

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“…In the current study, low estrus response was noticed in control groups (PGF 2 α alone). Similar to our findings, a low estrus response of 4.3-15.8% in Red Sokoto goats (Tauheed et al, 2010), 30% in Persian downy does (Hashemi and Safdarian, 2018) and 0% in Salem black goats (Gupta et al, 2019) was observed in goats synchronized with double PGF 2 α protocol. Relatively, a high estrus response of 50% was observed in GnRH group.…”

Section: Effect Of Copper and Selenium On Estrus Response Onset And D...supporting

confidence: 91%

“…Relatively, a high estrus response of 50% was observed in GnRH group. Similar estrus response was observed in our previous study on Salem black goats where GnRH based Ovisynch Protocol was used (Gupta et al, 2019). This effect may be attributed to GnRH injection which would have directly trigerred hypothalamic-pituitary-ovarian axis.…”

Section: Effect Of Copper and Selenium On Estrus Response Onset And D...supporting

confidence: 84%

“…The goat is considered as "poor man's cow" and provides livelihood for billions of low and medium input farmers (Gupta et al, 2019). As India is an agricultural based country, goats are predominantly distributed in India with a population of 148.88 million which constitutes to 27.80% of the total livestock population (Basic Animal Husbandry Statistics, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Efficiency of Copper and Selenium during Estrus Synchronization on Estrus Behaviour, Estradiol and Progesterone Concentration in Salem Black Goats

Tej

Johnson

Kaushik

et al. 2022

IJAR

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Background: Copper and selenium were proven modulaters of reproductive function in ruminants under dietary supplementation. Their effects under pareneral administraton during estrus synchronization are not clearly defined. On this background the present was aimed to evaluate the effect of copper and selenium on estrus associated responses in goats. Methods: Thirty adult female Salem black goats were selected. On day ten of the estrus cycle, 250 µg of cloprostenol injection was given intramuscularly to all the animals and assigned to five groups. GI: control, GII: 4 µg of Buserelin, GIII: 20 mg cupric chloride, GIV: 10 mg sodium selenite and GV: copper plus selenium injections were administrated. Whole blood was collected for seven days for hormone assay. Estrus was detected using aproned bucks. Result: There was no significant (p greater than 0.05) difference in estrus response, onset and duration of estrus between groups. The progesterone concentration decreased significantly (p less than 0.05) from day 0 (before PGF2α) to day 1 (after PGF2α) in all groups. There was a significant (p less than 0.05) increase in estradiol and progesterone concentration in the GnRH group compared to other groups. Parenteral administration of copper and selenium did not significantly improve estrus behavior, estradiol and progesterone concentration in Salem black goats. GnRH was once again proved to be effective in the improvement of estrus associated responses in goats.

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“…Nevertheless, these protocols result in sufficient synchrony of the estrous cycle, and they do not eliminate the need for estrus detection. With the widespread of the artificial insemination process and the increased intensive livestock production system, the need for more practicable estrous synchronization protocols has become crucial [ 2 ]. The inclusion of gonadotropins, specifically GnRH, in estrous synchronization procedures, allows for more regulation of ovarian function by modulating follicular waves and the corpus luteum life span [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Nanodelivery System for Ovsynch Protocol Improves Ovarian Response, Ovarian Blood Flow Doppler Velocities, and Hormonal Profile of Goats

Hashem

El‐Sherbiny

Fathi

et al. 2022

Animals

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Fifteen cyclic, multiparous goats were equally stratified and received the common Ovsynch protocol (GPG: intramuscular, IM, injection of 50 mg gonadorelin, followed by an IM injection of 125 µg cloprostenol 7 days later, and a further IM injection of 50 mg gonadorelin 2 days later) or the Ovsynch protocol using nanofabricated hormones with the same dosages (NGPG) or half dosages (HNGPG) of each hormone. The ovarian structures and ovarian and luteal artery hemodynamic indices after each injection of the Ovsynch protocol using B-mode, color, and spectral Doppler scanning were monitored. Levels of blood serum progesterone (P4), estradiol (E2), and nitric oxide (NO) were determined. After the first gonadotrophin-releasing hormone (GnRH) injection, the number of large follicles decreased (p = 0.02) in NGPG and HNGPG, compared with GPG. HNGPG resulted in larger corpus luteum (CL) diameters (p = 0.001), and improved ovarian and luteal blood flow, compared with GPG and NGPG. Both NGPG and HNGPG significantly increased E2 and NO levels compared with GPG. HNGPG increased (p < 0.001) P4 levels compared with GPG, whereas NGPG resulted in an intermediate value. After prostaglandin F2α (PGF2α) injection, HNGPG had the largest diameter of CLs (p = 0.001) and significantly improved ovarian blood flow compared with GPG and NGPG. Both NGPG and HNGPG increased (p = 0.007) NO levels, compared with GPG. E2 level was increased (p = 0.028) in HNGPG, compared with GPG, whereas NGPG resulted in an intermediate value. During the follicular phase, HNGPG increased (p = 0.043) the number of medium follicles, shortened (p = 0.04) the interval to ovulation, and increased (p < 0.001) ovarian artery blood flow and levels (p < 0.001) of blood serum P4, E2, and NO, compared with GPG and NGPG. During the luteal phase, the numbers of CLs were similar among different experimental groups, whereas the diameter of CLs, luteal blood flow, and levels of blood serum P4 and NO increased (p < 0.001) in HNGPG, compared with GPG and NGPG. Conclusively, the nanodelivery system for the Ovsynch protocol could be recommended as a new strategy for improving estrous synchronization outcomes of goats while enabling lower hormone dose administration.

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Efficiency of different synchronization protocols on oestrous response and rhythmic changes in 17β-oestradiol and progesterone hormone concentration in Salem Black goats

Cited by 4 publications

References 28 publications

Rhythmic Changes in Serum Progesterone and Estradiol-17β in Surti Goats under Different Synchronization Protocols

Rhythmic Changes in Serum Progesterone and Estradiol-17β in Surti Goats under Different Synchronization Protocols

Efficiency of Copper and Selenium during Estrus Synchronization on Estrus Behaviour, Estradiol and Progesterone Concentration in Salem Black Goats

Nanodelivery System for Ovsynch Protocol Improves Ovarian Response, Ovarian Blood Flow Doppler Velocities, and Hormonal Profile of Goats

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