Study of the relationship between blood plasma leptin and testosterone concentration in Pre and post puberty in Najdi male calves

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Mamouei Morteza; Mansuri Elham; MIRZADEH KHALIL; TOWHIDI ARMIN; TABATABAEI VAKILI SALEH; KAZEMIZADEH AMIN

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Journal: Iranian Journal of Animal Science Year:2019 | Volume:50 | Issue:3 Page(s): 229-237

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Title

Study of the relationship between blood plasma leptin and testosterone concentration in Pre and post puberty in Najdi male calves

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Age of pubertyQ1

calfQ1

correlationQ1

testis dimensionsQ1

Abstract

The purpose of this study was to investigate the relationship between plasma leptin and blood testosterone concentration before and after puberty. Eight male Najdi calves with mean age of 7 months were used for this purpose. Blood samples were taken three times before and after reaching puberty. At each sampling period, a blood sample was collected to determine the plasma concentration of leptin from all 8 consecutive and 6 consecutive blood samples and at 20 min intervals from 4 animals to determine the plasma level of testosterone. The results of this study showed that the Age of puberty in the Najdi race was 13-15 months old and the average weight was 120. 08 ± 36. 91 kg. Plasma leptin concentration was negatively correlated with testosterone (P <0. 05, r =-0. 43), age (P <0. 01, r =-0. 77), body weight (P <0. 01,-0. 39), testicular environment (r =-0. 62, P <0. 01) and testicular height (r =-0. 72, P <0. 01). In general, it can be concluded that with the onset of puberty and the increase in testosterone concentration, leptin concentration decreased due to the negative effect of testosterone on the production of leptin hormone in the body.

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APA: Copy

Mamouei, Morteza, Mansuri, Elham, MIRZADEH, KHALIL, TOWHIDI, ARMIN, TABATABAEI VAKILI, SALEH, & KAZEMIZADEH, AMIN. (2019). Study of the relationship between blood plasma leptin and testosterone concentration in Pre and post puberty in Najdi male calves. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 50(3 ), 229-237. SID. https://sid.ir/paper/378020/en

Vancouver: Copy

Mamouei Morteza, Mansuri Elham, MIRZADEH KHALIL, TOWHIDI ARMIN, TABATABAEI VAKILI SALEH, KAZEMIZADEH AMIN. Study of the relationship between blood plasma leptin and testosterone concentration in Pre and post puberty in Najdi male calves. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2019;50(3 ):229-237. Available from: https://sid.ir/paper/378020/en

IEEE: Copy

Morteza Mamouei, Elham Mansuri, KHALIL MIRZADEH, ARMIN TOWHIDI, SALEH TABATABAEI VAKILI, and AMIN KAZEMIZADEH, “Study of the relationship between blood plasma leptin and testosterone concentration in Pre and post puberty in Najdi male calves,” IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 50, no. 3 , pp. 229–237, 2019, [Online]. Available: https://sid.ir/paper/378020/en

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