Metabolic profile of pre-pregnancy, pregnancy and early lactation in multiple lambing Sakiz ewes. 1. Changes in plasma glucose, 3-hydroxybutyrate and cortisol levels

Firat, Aşen.; Ozpinar, A.

Annals of Nutrition and Metabolism 46(2): 57-61

2002


ISSN/ISBN: 0250-6807
PMID: 12011573
DOI: 10.1159/000057641
Accession: 010976174

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Abstract
Twenty synchronized Sakiz ewes aged 3-4 years were used in the study. Blood samples were taken once in pre-pregnancy and at the 100th day of pregnancy. At the 120th day of pregnancy and on the 10th day of lactation, blood samples were collected every 2 h for 24 h from only 10 ewes. Plasma cortisol levels were analyzed by radioimmunoassay. Plasma glucose and 3-hydroxybutyrate levels were determined spectrophotometrically. Plasma cortisol level slightly increased at the 100th day of pregnancy, decreased during late pregnancy and continued to decrease during lactation. Plasma glucose and 3-hydroxybutyrate levels were not significantly different during pre-pregnancy, pregnancy and the early lactation periods. In conclusion, the results showed that metabolic disorders such as pregnancy toxaemia did not occur in ewes fed a balanced ration sufficient in energy and protein levels even in a multiple lambing breed of ewes.