Metabolic profile of pre-pregnancy, pregnancy and early lactation in multiple lambing Sakiz ewes. 1. Changes in plasma glucose, 3-hydroxybutyrate and cortisol levels.
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.
Firat
Ayşen
A
Department of Biochemistry, Faculty of Veterinary Medicine, University of Istanbul, Turkey. afira@operamail.com
Ozpinar
Aysel
A
D020155:3-Hydroxybutyric Acid / Q000097:blood; D000818:Animals; D001786:Blood Glucose / Q000032:analysis; D004032:Diet / Q000592:standards / Q000662:veterinary; D005260:Female; D006854:Hydrocortisone / Q000097:blood*; D007774:Lactation / Q000378:metabolism*; D011225:Pre-Eclampsia / Q000097:blood / Q000209:etiology / Q000662:veterinary*; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000378:metabolism*; D011863:Radioimmunoassay / Q000379:methods / Q000662:veterinary; D012756:Sheep / Q000378:metabolism / Q000502:physiology*
D001786:Blood Glucose; D020155:3-Hydroxybutyric Acid; D006854:Hydrocortisone