Effect of the dry matter intake level on the sanguine profile of glucose, insulin, urea, estrogen and progesterone and concentration of IGF-I in the follicular liquid of crossbred heifers

Brazilian Archives of Biology and Technology

Luiz Paulo Rigolon¹  Ivanor Nunes Do Prado¹  Fábio Luiz Bim Cavalieri¹  Willian Gonçalves Do Nascimento¹  Luiz Carlos Copovila¹  Fabíola Dos Santos Ramos¹  Fernanda Barros Moreira¹ 

[1] ,Universidade Estadual de MaringáMaringá PR ,Brasil

关键词: FSH;    Hormones;    Intake;    Nutrition;    Reproduction;    Superovulation;   

DOI  :  10.1590/S1516-89132009000100008

来源: SciELO

【 摘 要 】

The aim of this work was to study effect of the dry matter intake level on the concentrations of glucose, insulin, urea, estrogen and progesterone in the blood and the level of IGF-I in the follicular liquid of heifers. Twenty seven crossbred heifers were used, in three treatments: 1.2, 1.6 and 2.6% of the live weight of dry matter intake (DMI) daily. The sanguine concentrations of glucose and estrogen were higher in the animals with 1.6% of DMI and the insulin levels were higher in the animals with 2.6% of DMI. There was an increase in the sanguine levels of urea with the increase of the DMI. There was no effect of the DMI on the progesterone levels in the sanguine plasma collected from the jugular. The progesterone levels in caudal vena were higher in the animals with 2.6% of DMI. There was no effect of the DMI on the follicular levels of IGF-I.

【 授权许可】

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