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فیزیولوژی تولید مثل پیشرفته. Advanced reproductive Physiology (part 2). By: A. Riasi (PhD in Animal Nutrition & Physiology). What is early embryonic loss?. From conception to the time of maternal recognition of pregnancy, e mbryonic loss is high. The early embryonic loss is affected by:

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Advanced reproductive physiology part 2

فیزیولوژی تولید مثل پیشرفته

Advanced reproductive Physiology(part 2)

By: A. Riasi

(PhD in Animal Nutrition & Physiology)












Poor nutrition at the same time IGF-I, glucose and insulin are low.

  • Lower metabolic hormones:

    • Somatotropin

    • Insulin

    • IGF-I

Low energy intake

Smaller and less estrogenic dominant follicle

Lower sroidogenic capacity of corpora lutea

Smaller corpora lutea

Lower progesterone concentration in blood

Lower reproduction performance


  • Expression of hepatic growth hormone receptor at the same time IGF-I, glucose and insulin are low.(GHR-1A) is thought to be responsible for the concentrations of IGF-I in plasma of cows.

  • IGF-I is an important hormonal signal that influences reproductive events:

    • Stimulation of cell mitogenesis

    • Hormonal production

    • Embryo development



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