Published in Scientific Works. Series C. Veterinary Medicine, Vol. LXX, Issue 1
Written by Mădălina CIOARIC (DEGENARO), Ivona ZĂBAVĂ, Tudor Andrei KACENCO, Liliana STOICA, Cosmin ȘONEA, Nicolae DOJANĂ
40-week-old Lohman Brown layers were used in this study. Three diets with different levels of crude protein allowed the consumption of 15.38, 13.58 and 11.78 g/d/cap., respectively. The experimental feeding lasted four weeks. Laboratory determinations were performed at the end of the experimental period. Triglycerides, total cholesterol, GOT, GPT and γ-GT transaminases, HDL-cholesterol, protein, albumin, γ-globulins and uric acid were determined in the blood serum. Nitrogen intake, nitrogen excretion in manure, nitrogen retention in the body and in the egg were also determined. Thus, following four weeks of experimental feeding, serum transaminases and HDL-cholesterol remained within normal limits. Triclycerides and uric acid presented an increase of their serum values. As a consequence of the decrease in daily nitrogen intake, nitrogen excretion and nitrogen retention as total in the body decreased while nitrogen excretion as total in the egg remained unmodified.
[Read full article] [Citation]
