SURVEY ON THE INFLUENCES OF AMBIENT TEMPERATURES, AGE AND SEX ON T3, 
T4, T3 UPTAKE AND FTI IN THE BLOOD SERA OF SHEEP IN AHWAZ

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MIRZADEH KH.; NOURI M.; KHADJEH G.; MOHAMMADIAN B.; RASEKH A.

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Journal: Journal of Veterinary Research Year:2005 | Volume:60 | Issue:4 Page(s): 383-388

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Title

SURVEY ON THE INFLUENCES OF AMBIENT TEMPERATURES, AGE AND SEX ON T3, T4, T3 UPTAKE AND FTI IN THE BLOOD SERA OF SHEEP IN AHWAZ

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Keywords

THYROIDAL HORMONESQ4

SEASONQ2

SEXQ3

AGEQ3

SHEEPQ2

Abstract

Objective: To investigate the effect of special meteorological condition of Ahwaz on thyroid function and to study the effects of gender and AGE on the function of this gland.Design: Cross sectional study.Animals: 210 SHEEP.Procedures: By Considering the meteorologic condition of Ahwaz and biseasonally nature of year in the region, blood samples of 210 SHEEP were randomly collected during the warmest (February) and coldest (July) months of year from Ahwaz slaughterhouse. Serum T3, T4, T3 uptake and free thyroxin index (FTI) concentrations were measured in four AGE groups of SHEEP: less than 6 months, 6-12 months, 12- 48 months and above 48 months by Radioimmunoassay. Statistical analysis: Analysis of variance and Correlation coefficient.Results: There was a significant differences in the concentration of serum T3 (P<0.001), T4 (P<0.001),T3 uptake (P<0.001) and FTI (P<0.05) between the warmest and coldest months. Furthermore, AGE (but not SEX) showed significant effect on these parameters (P<0.05). Serum T3, T4 and FTI levels was significantly higher and T3 uptake was significantly lower in February than July. A direct correlation between T4 and FTI, T4 and T3, FTI and T3, T3 Uptake and FTI in each month (P<0.01) and a reverse correlation between T3 and T3 uptake (P<0.05) were noticed.Conclusion: The results of this study showed that in July, heat had a suppression effect on thyroid function in SHEEP. Therefore increased production and reproduction problems in warm SEASON may be due to thyroid dys function. While AGE showed a negative correlation with thyroid gland function, such pattern did not found for SEX.

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APA: Copy

MIRZADEH, KH., NOURI, M., KHADJEH, G., MOHAMMADIAN, B., & RASEKH, A.. (2005). SURVEY ON THE INFLUENCES OF AMBIENT TEMPERATURES, AGE AND SEX ON T₃, T₄, T₃UPTAKE AND FTI IN THE BLOOD SERA OF SHEEP IN AHWAZ. JOURNAL OF VETERINARY RESEARCH, 60(4), 383-388. SID. https://sid.ir/paper/35036/en

Vancouver: Copy

MIRZADEH KH., NOURI M., KHADJEH G., MOHAMMADIAN B., RASEKH A.. SURVEY ON THE INFLUENCES OF AMBIENT TEMPERATURES, AGE AND SEX ON T₃, T₄, T₃UPTAKE AND FTI IN THE BLOOD SERA OF SHEEP IN AHWAZ. JOURNAL OF VETERINARY RESEARCH[Internet]. 2005;60(4):383-388. Available from: https://sid.ir/paper/35036/en

IEEE: Copy

KH. MIRZADEH, M. NOURI, G. KHADJEH, B. MOHAMMADIAN, and A. RASEKH, “SURVEY ON THE INFLUENCES OF AMBIENT TEMPERATURES, AGE AND SEX ON T₃, T₄, T₃UPTAKE AND FTI IN THE BLOOD SERA OF SHEEP IN AHWAZ,” JOURNAL OF VETERINARY RESEARCH, vol. 60, no. 4, pp. 383–388, 2005, [Online]. Available: https://sid.ir/paper/35036/en

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