Prevention of embryonic death using different hormonal treatments in ewes

Ataman, Mehmet Bozkurt; Aköz, Mehmet; Saribay, Mustafa Kemal; Erdem, Hüseyin; Bucak, Mustafa Numan

doi:10.3906/vet-1102-795

Cited by 8 publications

(8 citation statements)

References 44 publications

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“…The positive effect of exogenous GnRH administration on fertility and conception rates recorded in the current work (93.3%) presumably induced the LH surge which in turn may had promoted either ovulation or follicular atresia (31). Furthermore, in many studies having carried out (2,12,13,19,38) it has demonstrated than GnRH treatment applied until 12 th day of gestation support luteal function and it has beneficial effects on embryonic development. Thus GnRH injection enhanced reproductive performance of ewes and does when injected at the time of mating (38).…”

Section: Fertility and Conception Ratessupporting

confidence: 52%

Reproductive Performance in Response to Different Hormonal Treatments in Local Goats

Alkass¹,

Barwary²

2022

Iraqi J. Agric. Sci.

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To evaluate the effect of different hormonal treatments on reproductive performance of local goats, 60 adult does were synchronized by using sponges impregnated with 40 mg medroxy acetate (MAP) for 14 days. Following sponges withindrawn, the does were allocated randomly to four equal groups. The first group was served as control and intramuscularly injected with normal saline (T1). The does in group 2,3 and 4 were injected intramuscularly with 250 i.u hCG(T2) 400 i.u. eCG(T3) and 20 µg GnRH(T4), respectively. Results revealed that the highest estrus response was recorded in T2 (100%) followed by T4(93.3%), T1 (86.7%) and T3(73.3%). Fertility rate was significantly (p˂0.05) higher in T4 (93.3%) and the lowest was found in T3 (66.7%). A significantly higher kidding rate (146.7%) and litter size (1.69) was recorded in T2. While the lowest kidding rats and litter size was recorded in T4 and T3, respectively.

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Section: Fertility and Conception Ratessupporting

confidence: 52%

Reproductive Performance in Response to Different Hormonal Treatments in Local Goats

Alkass¹,

Barwary²

2022

Iraqi J. Agric. Sci.

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“…Progesterone and estrogen determine the proper function of the uterus in preparation for embryo development and implantation. Therefore, increasing of progesterone level during early pregnancy reduce embryonic losses and increase pregnancy rate and fertility (Ataman et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

The Combination of Progesteron Sponge, PMSG and Minimal Dose PGf2 Alfa toward Sheep Pregnantion

Hermadi¹,

Safitri²,

Restiadi³

et al. 2023

IJAR

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Background: The goal of this study was to confirm the effects of the engineering design of the vaginal progesterone implant capsule, which had a 2 cm sponge with a diameter of 5 cm, a 2 cm porous capsule with a dose of 50 mg MAP in the centre and 13 cm nylon cord for keeping the sponge in position. Methods: A full concentrate total protein 17% consumed at 0.05 kg/day/head was previously administered to as many as 30 overweight ewes with a body score of at least 3 and those who were positively identified as having ever given birth to help them improve their body score condition. It was found that T0 consisted of 10 obese female sheep that underwent a normal oestrous cycle without oestrus synchronization therapy and waited for natural oestrus, while T1 and T2 consisted of 10 sheep that received progesterone implant capsule vaginal sponges with a dose of 50 mg MPA on day 0 getting 100 IU sc PMSG folligon intervet Holland in addition. Result: On day 35, the oestrous response was 100% and the pregnancy rates were 70%, 80% and 80% in T0, T1 and T2 groups, respectively (p greater than 0.05). Progesterone levels in the groups non pregnant are 1,66±0.8; 1,23±0.78 and 1,60 ± 0.90 ng/ml (p greater than 0.05).

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“…Progesterone plays a crucial role in preparing the uterus for embryo development and implantation. Therefore, increasing progesterone levels during early pregnancy reduces embryonic losses and increases pregnancy rate and fertility (Ataman et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Effect of protected fatty acid supplementation on ovarian activity, reproductive hormone profiles and reproduction of Barki ewes under semiarid conditions

Farrag,

El-Bahrawy,

Shedeed

et al. 2024

Arch. Anim. Breed.

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Abstract. The objective of this experiment was to evaluate the impact of dietary supplementation with rumen-protected fat (calcium soaps of fatty acids, CSFA) and/or hormonal superovulation using equine chorionic gonadotropin (eCG) on ovarian activity, changes in ovarian hormones, and reproductive performance in Barki ewes under semiarid conditions. A total of 39 non-pregnant Barki ewes, with an average body weight of 34.7 ± 0.25 kg and an average age of 3–4 years, were divided into four groups. The first group (9 ewes) served as the control, while the second group (10 ewes) received double doses of PGF2α, administered 9 d apart, and was superovulated with 600 IU (international unit) eCG. The third group (10 ewes) was supplemented with 30 g per head per day of rumen-protected fat. The fourth group (10 ewes) underwent the same superovulation protocol as the second group and was also supplemented with 30 g per head per day of rumen-protected fat. All the ewes were fed a basal diet. Ovarian activity was detected using ultrasonography during the estrus phase in all the groups, after which all the ewes were naturally bred with Barki rams. The results demonstrated significant (P<0.05) increases in estradiol 17-β (E2) and progesterone (P4) levels in the treated groups compared to the control group. Ewes in all the treated groups exhibited large follicles, with an overall mean diameter (≥5 mm) significantly higher than that of ewes in the control group. Although there were no significant differences between the treated and control groups, the ewes treated with CSFA and/or the eCG hormone showed tendencies to improve the reproductive traits of Barki ewes. Overall, the findings of this study demonstrated a positive effect of CSFA alone or in combination with an estrous synchronization protocol on ovarian activity in Barki ewes, as indicated by the number and size of follicles and the presence of large-sized follicles.

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Prevention of embryonic death using different hormonal treatments in ewes

Cited by 8 publications

References 44 publications

Reproductive Performance in Response to Different Hormonal Treatments in Local Goats

Reproductive Performance in Response to Different Hormonal Treatments in Local Goats

The Combination of Progesteron Sponge, PMSG and Minimal Dose PGf2 Alfa toward Sheep Pregnantion

Effect of protected fatty acid supplementation on ovarian activity, reproductive hormone profiles and reproduction of Barki ewes under semiarid conditions

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