THE EFFECT OF DIETARY LETROZOLE ON PLASMA GONADOTROPIN CONCENTRATIONS AND SOME TESTICULAR HISTOLOGY PARAMETERS IN 40 WEEKS OLD BROILER BREEDER ROOSTER

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ABDULGABBAR ALI EMAD; ZHANDI MAHDI; TOWHIDI ARMIN; ZAGHARI MOJTABA; ANSARI MAHDI

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Journal: Iranian Journal of Animal Science Year:2017 | Volume:48 | Issue:2 Page(s): 175-183

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Title

THE EFFECT OF DIETARY LETROZOLE ON PLASMA GONADOTROPIN CONCENTRATIONS AND SOME TESTICULAR HISTOLOGY PARAMETERS IN 40 WEEKS OLD BROILER BREEDER ROOSTER

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Keywords

GONADOTROPINQ2

LETROZOLEQ1

ROOSTERQ1

SPERMATOGONIUMQ1

TESTIS HISTOLOGYQ1

Abstract

The current study was carried out to evaluate the effect of LETROZOLE feeding on plasma LH and FSH concentrations and testicular histology in Ross 308 broiler breeder ROOSTERs. Twenty 40-week old ROOSTERs were randomly divided into four groups, individually housed and fed different levels of capsulated LETROZOLE including 0 (L0), 0.5 (L0.5), 1 (L1) or 1.5 (L1.5) mg/bird/day for 12 consecutive weeks. Blood sampling was done on 1th, 3 th, 5 th, 7 th and 9th weeks of trail. Testicular histology was assessed on samples from last week (12th) of experiment. According to the results, plasma LH and FSH levels, seminiferous tubule diameter and epithelium thickness as well as Leydig cell numbers were significantly increased in LETROZOLE treated groups compered to control group. The highest concentration of FSH and LH were recorded for L1 (10.39 ±0.11 and 2.93±0.08) and L1.5 (9.5±0.2 and 3.17±0.08) groups, respectively. Both L0.5 and L1 groups had significantly higher spermatogonial numbers than control group. However, blood vessel numbers were not significantly affected. In conclusion, orally feeding LETROZOLE (1 and 1.5 mg) could improve GONADOTROPIN concentration and testicular histology parameters of male broiler breeders at 40 weeks of age. Further studied are needed to confirm these results and extend them to final fertility.

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APA: Copy

ABDULGABBAR ALI, EMAD, ZHANDI, MAHDI, TOWHIDI, ARMIN, ZAGHARI, MOJTABA, & ANSARI, MAHDI. (2017). THE EFFECT OF DIETARY LETROZOLE ON PLASMA GONADOTROPIN CONCENTRATIONS AND SOME TESTICULAR HISTOLOGY PARAMETERS IN 40 WEEKS OLD BROILER BREEDER ROOSTER. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 48(2), 175-183. SID. https://sid.ir/paper/193603/en

Vancouver: Copy

ABDULGABBAR ALI EMAD, ZHANDI MAHDI, TOWHIDI ARMIN, ZAGHARI MOJTABA, ANSARI MAHDI. THE EFFECT OF DIETARY LETROZOLE ON PLASMA GONADOTROPIN CONCENTRATIONS AND SOME TESTICULAR HISTOLOGY PARAMETERS IN 40 WEEKS OLD BROILER BREEDER ROOSTER. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2017;48(2):175-183. Available from: https://sid.ir/paper/193603/en

IEEE: Copy

EMAD ABDULGABBAR ALI, MAHDI ZHANDI, ARMIN TOWHIDI, MOJTABA ZAGHARI, and MAHDI ANSARI, “THE EFFECT OF DIETARY LETROZOLE ON PLASMA GONADOTROPIN CONCENTRATIONS AND SOME TESTICULAR HISTOLOGY PARAMETERS IN 40 WEEKS OLD BROILER BREEDER ROOSTER,” IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 48, no. 2, pp. 175–183, 2017, [Online]. Available: https://sid.ir/paper/193603/en

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