Effect of soybean peptides on growth performance, intestinal structure and mucosal immunity of broilers.
Five-hundred 1-day-old broilers were randomly assigned to five groups, 100 chickens for each group. From group 1 to 3, 80, 120 and 200 mg/kg soybean peptides was added to the diets respectively; in the fourth group, 3.2 mg/kg genramycin was added; and the fifth group was the control without soybean peptides and antibiotics. At the age of 28 and 49 days, the number of goblet cells (GC), intestine intraepithelial lymphocyte, immunoglobulin A-forming cells, the ratio of villous height and crypt depth (V/C) of broiler's duodenum, jejunum and cecum were observed by the application of haematoxylin and eosin or histochemistry staining. The results indicated that soybean peptides added with 80-120 mg/kg could increase daily weight gain, the number of GC and V/C. Soybean peptides could modulate intestinal mucosal immunity of broilers.
Jiang
Y B
YB
College of Animal Husbandry and Veterinary Science, Henan Agricultural University, Zhengzhou, China.
Yin
Q Q
QQ
Yang
Y R
YR
D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002645:Chickens / Q000254:growth & development*; D004032:Diet; D004305:Dose-Response Relationship, Drug; D018928:Immunity, Mucosal / Q000187:drug effects*; D007155:Immunologic Factors / Q000494:pharmacology; D007422:Intestines / Q000033:anatomy & histology* / Q000187:drug effects*; D030262:Soybean Proteins / Q000494:pharmacology*; D015430:Weight Gain / Q000187:drug effects
D007155:Immunologic Factors; D030262:Soybean Proteins