Enhancing follicular growth as a prerequisite for GnRH treatment of true anestrum in buffalo

Ramoun, Adel; Serur, B.H.; Fattouh, El-S.M.; Darweish, S.A.; El-Ghait, H. Abou

doi:10.1016/j.anireprosci.2012.03.012

Cited by 11 publications

(16 citation statements)

References 30 publications

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“…Hence, inadequate LH pulse frequency, low concentration of insulin and IGF-I impede the follicular growth and reduces the chance of ovulation. These conditions appear to occur in a state of under nutrition/malnutrition (Roche, 2006;Ramoun et al, 2012) and negative energy balance (Richards et al, 1989;Beever et al, 2001). In a state of negative energy balance, the circulating concentration of non-esterified fatty acid (NEFA) due to mobilization of body reserves (Richards et al, 1989;Canfield and Butler, 1990;Grimard et al, 1995) and endogenous opioids increases which in turn decreases the pulsatile secretion of LH.…”

Section: Pathogenesismentioning

confidence: 99%

“…The recommended dose is 0.25 IU/kg body weight subcutaneously for 3-5 days. Use of GnRH or eCG pretreated with insulin has shown promising results for management of anestrus cattle (Shukla et al, 2005 a&b) and buffaloes Kumar et al, 2012;Ramoun et al, 2012). It has also been shown that insulin enhances the follicular growth in true anestrus buffalo which is prerequisite of GnRH to be effective (Ramoun et al, 2012).…”

Section: Insulin Based Treatmentmentioning

confidence: 99%

“…Use of GnRH or eCG pretreated with insulin has shown promising results for management of anestrus cattle (Shukla et al, 2005 a&b) and buffaloes Kumar et al, 2012;Ramoun et al, 2012). It has also been shown that insulin enhances the follicular growth in true anestrus buffalo which is prerequisite of GnRH to be effective (Ramoun et al, 2012). The treatment of true anestrus buffaloes under field condition was reported satisfactory when single intramuscular injection of PMSG (500 IU) was combined with subcutaneous injections of insulin @ 0.25IU/Kg body weight for five consecutive days (Kumar, 2012).…”

Section: Insulin Based Treatmentmentioning

confidence: 99%

See 2 more Smart Citations

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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Section: Pathogenesismentioning

confidence: 99%

Section: Insulin Based Treatmentmentioning

confidence: 99%

Section: Insulin Based Treatmentmentioning

confidence: 99%

See 1 more Smart Citation

Anestrus in Cattle and Buffalo: Indian Perspective

Kumar¹,

Singh²,

Kharche³

et al. 2014

Adv. Anim. Vet. Sci.

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“…The recommended dose is 0.25 IU/kg body weight subcutaneously for 3-5 days. Promising results for management of anestrus in cattle have been observed with the use of GnRH or eCG pretreated with insulin [23,24] and buffaloes [22,25]. Insulin enhances the follicular growth in true anestrus buffalo which is a prerequisite for GnRH to be effective [25].…”

Section: Insulinmentioning

confidence: 99%

Induction and Synchronization of Estrus

Pal¹,

Dar²

2021

Animal Reproduction in Veterinary Medicine

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Estrus cycle is a rhythmic change that occur in the reproductive system of females starting from one estrus phase to another. The normal duration of estrus cycle is 21 days in cow, sow, and mare, 17 days in ewe, and 20 days in doe. The species which exhibit a single estrus cycle are known as monstrous and species which come into estrus twice or more are termed polyestrous animals. Among them some species have estrus cycles in a particular season and defined as seasonal polyestrous. It includes goats, sheep, and horses. On the other hand, cattle undergo estrus throughout the year. The estrus inducers can grossly be divided into two parts, that is, non-hormonal and hormonal. Non-hormonal treatments include plant-derived heat inducers, mineral supplementation, uterine and ovarian massage, and use of Lugol's iodine. The hormones that are used in estrus induction are estrogen, progesterone, GnRH, prostaglandin, insulin, and antiprolactin-based treatment. Synchronization can shorten the breeding period to less than 5 days, instead of females being bred over a 21-day period, depending on the treatment regimen. The combination of GnRH with the prostaglandin F2α (PGF2α)-and progesterone [1, 2]-based synchronization program has shown a novel direction in the estrus synchronization of cattle with the follicular development manipulation.

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“…After parturition the concentration of these hormones are withdrawn and emergence of follicular waves occurs with the transient rise of FSH, Follicle Stimulating Hormone (Noakes, et al, 2009). But subsequent growth of follicle is largely depends upon insulin and insulin like growth factor (IGF)-I whose concentration is greatly influenced by level of nutrition (Ramoun, et al, 2012). Negative energy balance during postpartum period reduces pulsatile secretion of luteinizing hormone (LH) that also affects the follicular growth (Noakes, et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Effect of Exogenous Progesterone in Treatment of Ovarian Inactivity in the Egyptian Dairy Parturient Buffalo-Cows

Bakr¹,

Noseir²,

Amrawi³

2015

AJVS

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I Inactive or nonfunctional ovaries are one of the most important reported causes of the prolonged postpartum anestrum that resulted to the delayed onset of estrus and inefficient breeding in buffaloes. The suggested study of progesterone in the blood serum of buffalo could be potentially useful as far as the hormone content that might reflect the postpartum condition in the buffalo-cows. This study aimed to evaluate the effect of exogenous progesterone in treatment of ovarian inactivity in the Egyptian dairy parturient buffalo-cows. This study was carried out on parturient buffalo-cows came to veterinary clinic and owned by small holders. These buffalo-cows ages ranged between 2-5 years. The animals were divided into 4 groups (28 animals). First group (7 buffalo-cows) as control group without any treatment. The second group (5 buffalo-cows) to study the effect of Progesterone (prontogest®) + PGf2α treatment trial. Third group (7 buffalo-cows) to study the effect of CIDR treatment trail. Forth group (9 buffalo-cows) to study the effect of CIDR+GPG protocol as a treatment trail. Progesterone level was measured before treatment (for diagnosis) and after treatment (to detect the response of treatment). The results indicated that using CIDR+GPG gave good results for the treatment of ovarian inactivity in buffalo-cows, where increased the incidence of estrus and improved the reproductive parameters in dairy parturient buffalo-cows.

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Enhancing follicular growth as a prerequisite for GnRH treatment of true anestrum in buffalo

Cited by 11 publications

References 30 publications

Anestrus in Cattle and Buffalo: Indian Perspective

Anestrus in Cattle and Buffalo: Indian Perspective

Induction and Synchronization of Estrus

Effect of Exogenous Progesterone in Treatment of Ovarian Inactivity in the Egyptian Dairy Parturient Buffalo-Cows

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