title: Changes in diarrhea, nutrients apparent digestibility, digestive enzyme activities of weaned piglets in response to chitosan-zinc chelate.
abstract: A total of 120 weanling barrows weighing 6.11 ± 0.20 kg were randomly allotted to four treatments with three replications (i.e. pen) of ten piglets per replicate. Pigs were received corn-soybean basal diet (control) or the same basal diet supplemented with the following sources of zinc: (i) 100 mg/kg of Zn as ZnSO4 ; (ii) 100 mg/kg of Zn as chitosan-Zn chelate (CS-Zn); and (iii) 100 mg/kg of Zn as ZnSO4 mixed with chitosan (CS + ZnSO4 ). The results showed that CS-Zn could highly improve average daily gain and average daily feed intake than those of ZnSO4 or CS+ ZnSO4 (P < 0.05). The pigs fed dietary CS-Zn had lower diarrhea incidence and higher apparent digestibility of crude protein than those of the pigs fed dietary ZnSO4 (P < 0.05). The protease activities in duodenal content of the pigs receiving CS-Zn diets was higher than that of the pigs fed dietary ZnSO4 or CS + ZnSO4 (P < 0.05). The amylase activity in duodenal content of the pigs fed dietary CS-Zn was higher than that of the pigs receiving ZnSO4 diets or basal diets (P < 0.05). These results indicated that dietary CS-Zn showed different bioactivities from ZnSO4 or CS + ZnSO4 in reducing the incidence of diarrhea, improving activities of digestive enzymes and growth performance of weaned pigs.
authors: Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou, China.
authors: Lichun
authors: L
authors: Qian
authors: Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou, China.
authors: Xiaojing
authors: X
authors: Yue
authors: Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou, China.
authors: Luansha
authors: L
authors: Hu
authors: Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou, China.
authors: Yuanfei
authors: Y
authors: Ma
authors: Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou, China.
authors: Xinyan
authors: X
authors: Han
mesh_terms: D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D048271:Chitosan / Q000008:administration & dosage*; D003967:Diarrhea / Q000517:prevention & control* / Q000662:veterinary*; D004032:Diet / Q000662:veterinary*; D019587:Dietary Supplements; D004063:Digestion; D004386:Duodenum / Q000201:enzymology; D008297:Male; D010447:Peptide Hydrolases / Q000378:metabolism; D013552:Swine / Q000254:growth & development* / Q000502:physiology*; D013553:Swine Diseases / Q000517:prevention & control*; D014886:Weaning; D019287:Zinc Sulfate / Q000008:administration & dosage*
chemical_list: D019287:Zinc Sulfate; D048271:Chitosan; D010447:Peptide Hydrolases
keywords: apparent digestibility; chitosan-zinc; diarrhea; digestive enzyme; weaned pig