ESTRADIOL AND PROGESTERONE CHANGES IN ESTRUS CYCLE OF ARABIAN MARE IN KHOUZESTAN REGION

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GOURANINEZHAD S.; KOHRAM H.; KHAJEH GH.; MASHHOORI M.

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Journal: SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL Year:2006 | Volume:10 | Issue:12 Page(s): 65-71

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Information Journal Paper

Title

ESTRADIOL AND PROGESTERONE CHANGES IN ESTRUS CYCLE OF ARABIAN MARE IN KHOUZESTAN REGION

Author(s)

GOURANINEZHAD S. | KOHRAM H. | KHAJEH GH. | MASHHOORI M. | Issue Writer Certificate

Keywords

ARABIAN MAREQ3

PROGESTERONEQ3

ESTRADIOLQ3

ESTROUS CYCLEQ3

Abstract

This study was conducted to evaluate the ESTRADIOL and PROGESTERONE profiles of 6 adult, cyclic Arabian mars during ESTROUS CYCLE. Blood samples were daily collected via jugular venopuncture. Plasma was separated by centrifugation and stored at -20°C till measuring by radioimmunoassay (RIA) technique. The mean of plasma PROGESTERONE and ESTRADIOL concentrations were analyzed by analysis variance (repeated measures test using GLM; SPSS). Results showed that the mean (±SEM) of PROGESTERONE concentrations was below 1 ng/ml during estrus stage. The PROGESTERONE concentration increase to 2.87±0.64ng/ml within 24 hours after ovulation. The PROGESTERONE concentration increased significantly from day 1 to day 6 (P<0.05; 2.87±0.44 to 12.7±3.94 ng/ml) of ESTROUS CYCLE. Between days 7 to 14 of cycle, PROGESTERONE concentration was over 1ng/ml, which start to decreased (P<0.05; 0.8±0.3ng/ml) during day 14 and 15 to get the basal level. The mean (±SEM) of ESTRADIOL concentration was 108.26±32.00 pg/ml 2 days before ovulation. During day 1to 22 it was 31.90±11.60 to 92.20±27.20 pg/ml, which increased (P<0.05) during day 23 to 24. The peak of ESTRADIOL concentration (106.9±37.8 pg/ml) occurred on day 24 of the estrus cycle. The mean length of estrus cycle and estrus period (P4<1 ng/ml) was 23 and 9.6 days, respectively.

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APA: Copy

GOURANINEZHAD, S., KOHRAM, H., KHAJEH, GH., & MASHHOORI, M.. (2006). ESTRADIOL AND PROGESTERONE CHANGES IN ESTRUS CYCLE OF ARABIAN MARE IN KHOUZESTAN REGION. SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL, 10(12), 65-71. SID. https://sid.ir/paper/97308/en

Vancouver: Copy

GOURANINEZHAD S., KOHRAM H., KHAJEH GH., MASHHOORI M.. ESTRADIOL AND PROGESTERONE CHANGES IN ESTRUS CYCLE OF ARABIAN MARE IN KHOUZESTAN REGION. SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL[Internet]. 2006;10(12):65-71. Available from: https://sid.ir/paper/97308/en

IEEE: Copy

S. GOURANINEZHAD, H. KOHRAM, GH. KHAJEH, and M. MASHHOORI, “ESTRADIOL AND PROGESTERONE CHANGES IN ESTRUS CYCLE OF ARABIAN MARE IN KHOUZESTAN REGION,” SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL, vol. 10, no. 12, pp. 65–71, 2006, [Online]. Available: https://sid.ir/paper/97308/en

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