Dietary Supplementation of Glutamine Improves Metabolic Functions in 1-14 Days Old Broilers Under Cold Stress
Dietary Supplementation of Glutamine Improves Metabolic Functions in 1-14 Days Old Broilers Under Cold Stress
Haoneng Guo1,2, Shuangshuang Xiao3, Wenfang Lou1,2, Rifat Ullah Khan4, Juanjuan Wu1,2, Bo Huang2, Sifa Dai2,3* and Guanhong Li1*
ABSTRACT
The purpose of this experiment is to study the effect of glutamine (Gln) on the metabolic functions of cold stress chicks (1-14 days old) from the perspective of serum biochemical indicators. A total of 192 healthy 1-day-old broilers with no significant difference in weight, were randomly divided into four groups, each group with four replicates and 12 broilers per replicate. Group Ⅰ was a control group, the broilers were fed the basal diet, and the broilers in Group II, III, IV were fed a basal diet supplemented with 1.0% and 1.5%, respectively 2.0% Gln. The broilers were kept at 25±2 ℃ for 14 days. Samples were taken and analyzed at 7 and 14 days of age. On the 7th day, compared with group Ⅰ, the serum level of LDH in group II, III and IV were significantly decreased. Serum triiodothyronine content in group II, III, and IV was significantly increased. Also, compared with the control, the glucose level was significantly decreased in group II, and the serum uric acid content in II, III, and IV was significantly decreased. On the 14th day, compared with group Ⅰ, the K+ in the group III and IV decreased significantly, and the P3+ in the group II and IV decreased significantly. The LDH level in group IV was significantly reduced, and the AST level in group II was significantly reduced. The albumin and globulin levels in group IV were decreased significantly. Under this experimental condition, adding Gln to the diet has a certain improvement effects on serum biochemical indices of cold stressed chicks.
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