Effect of N- carbamylglutamate and feeding level on amino acids and biochemical parameters in goats

Jamal Abdul Rahman Tawfeeq Al-Ani; Rasha Mohamed Shaker; Anwar Kadhim Hussein

doi:10.9755/ejfa.2023.v35.i3.3001

Authors

Jamal Abdul Rahman Tawfeeq Al-Ani Department of Animal Production, College of Agri. Engineering Sciences, Univ. of Baghdad, Baghdad, Iraq
Rasha Mohamed Shaker Biochemistry Section, College of Dentistry, University of Baghdad, Baghdad, Iraq, 3Office of Agricultural Research/Ministry of Agriculture,
Anwar Kadhim Hussein Office of Agricultural Research/Ministry of Agriculture,

DOI:

https://doi.org/10.9755/ejfa.2023.v35.i3.3001

Abstract

The effect of feed additive N- carbamylglutamate (NCG) with different feeding levels on some biochemical parameters and amino acids in the serum of goats was investigated. Thirty male goats aged 10-11 months were distributed into three levels of concentrate 70%, 50%, and 30% with or without N- carbamylglutamate (NCG) in a 2×3 factorial experiment/ Completely Randomized Design (CRD). After 77 days of individual feeding, jugular blood was sampled before morning feeding. The results showed that additive NCG with high concentrate (70%) led to a decrease (P<0.01) in total blood protein, triglycerides, and globulins, and a decrease (P<0.05) for creatinine, uric acid, and VLDL. Blood magnesium increased (P<0.01) with NCG of low concentrate (30%) treatment, while phosphor increased with NCG of 50% concentrate treatment. Calcium increased with all NCG treatments. The results of adding N- carbamylglutamate with high roughage led to a negative effect on blood amino acids. In conclusion, increasing roughage feeding without NCG is the best for blood homeostasis, and don't use N- carbamylglutamate without non-protein nitrogen additives.

Keywords: Amino acids, blood traits, N-carbamylglutamate, feeding level.