Animal Research: |
Poult Sci. 2014 Oct;93(10):2490-500. | Effect of 4-Aminobutanoic acid on digestive enzymes, absorption function, and immune function of intestinal mucosa in heat-stressed chicken.[Pubmed: 25085934] | To explore the effect of dietary 4-Aminobutanoic acid (GABA) on digestive enzyme activity, absorption function and immune function of intestinal mucosa in heat-stressed Wenchang chicken were studied. METHODS AND RESULTS: One-day-old male Wenchang chickens were randomly divided into a control group (CK), heat stress group (HS), and 4-Aminobutanoic acid+HS group. The chickens from the 4-Aminobutanoic acid+HS group were administered with 0.2 mL of 4-Aminobutanoic acid solution daily. Chickens from HS and 4-Aminobutanoic acid+HS groups were subjected to heat stress treatment at 40 ± 0.5°C for 2 h during 1300 to 1500 h every day. Blood was drawn and 0.5 cm-long duodenum, jejunum, and ileum were collected from the chickens on d 3, 5, 7, 9, 12, and 15. Results showed that the activity of Ca²⁺-Mg²⁺-adenosine triphosphatase (ATPase), Na⁺-K⁺-ATPase, maltase, sucrase, and alkaline phosphatase, the contents of secretory IgA, glutathione, and d-xylose, and the number of lymphocytes in HS group were significantly lower than those in the CK group. Among them, some were rescued after the treatment of 4-Aminobutanoic acid as the time extension. |
|