Effect of encapsulated and non-encapsulated compound acidifiers on gastrointestinal pH and intestinal morphology and function in weaning piglets

• Autorzy: Jia G. , Yan J.-Y. , Cai J.-Y. , Wang K.-N.
• Języki publikacji: EN

Abstrakty

EN

The experiment was conducted to study the effects of the addition of encapsulated and nonencapsulated compound acidifiers in a diet based on maize-soyabean meal-extruded soyabean on gastrointestinal pH, growth performance, villus height and crypt depth of jejunum, intestinal digestive enzymes activities, microbial population and intestinal mucosal secretory immunoglobulin A in weaning piglets. Sixty-four 28-day-old, crossbred piglets (Landrace×Large White), weighing an average of 7.00 ± 0.10 kg, were randomly assigned to four treatments with four replicates and four piglets (2 male and 2 female) per pen, according to single-factor design principle. The feeding trial lasted 35 days. The results showed that encapsulated compound acidifiers significantly reduced the gastrointestinal pH (P<0.01), and improved the average daily gain and the feed conversion ratio (P<0.05), but they had no significant effect on the average daily feed intake. In addition, encapsulated compound acidifiers significantly increased the ratio between the villus height and crypt depth of jejunum (P<0.01), and stimulated the sucrase activity and lactase activity (P<0.05) as well; during the later weaning period, encapsulated compound acidifiers significantly increased the counts of Lactobacillus and decreased the counts of Escherichia coli in the caecum and the colon (P<0.01); it was also noted that there was an insignificant tendency of lower secretion of intestinal mucosal secretory IgA (P>0.05). These results indicate that the encapsulated compound acidifiers improve the intestinal morphology and function by reducing the gastrointestinal pH, so as to enhance the intestinal adaptation and immunity, and consequently improve the growth performance of weaning piglets.

Słowa kluczowe

PL

encapsulated compound acidifier; non-encapsulated compound acidifier; gastrointestinal pH; intestinal morphology; intestinal function; piglet; pig; weaning piglet; animal feeding; diet; feed additive

• Wydawca: -
• Czasopismo: Journal of Animal and Feed Sciences
• Rocznik: 2010
• Tom: 19
• Numer: 1
• Opis fizyczny: p.81-92,ref.

Twórcy

autor

Jia G.

• Sichuan Agricultural University, Ya'an 625014, P.R.China

autor

Yan J.-Y.

autor

Cai J.-Y.

autor

Wang K.-N.

Bibliografia

• Bolduan G., Jung H., Schnable E., Schneider R., 1988. Recent advances in the nutrition of weaner piglets. Pig News Inform. 9, 381-385
• Bosi P., Jung H.J., Han I.K., Perini S., Cacciavillani J.A., Casini L., Creston D., Gremokolini C., Mattuzzi S., 1999. Effects of dietary buffering characteristic and protected or unprotected acids on piglet growth, digestibility and characteristics of gut content. Asian-Austr. J. Anim. Sci. 12,1104-1110
• Bosi P., Sarli G., Casini L., Filippi S. D., Trevisi P., Mazzoni M., Merialdi G., 2007. The influence of fat protection of calcium formate on growth and intestinal defence in Escherichia coli K88-challenged weanling pigs. Anim. Feed Sci. Tech. 139, 170-185.
• Buddle J.R., Bolton J.R., 1992. The pathophysiology of diarrhoea in pigs. Pig News Inform. 13, 41-45
• Burnell T.W., Cromwell G.L., Staly T.S., 1988. Effects of dried whey and copper sulfate on the growth responses to organic acid in diets for weaning pigs. J. Anim. Sci. 66, 1100-1108
• Canibe N., Steien S.H., Overland M., Jensen B.B., 2001. Effect of K-diformate in starter diets on acidity, microbiotia, and the amount of organic acids in the digestive tract of piglets, and on gastric alterations. J. Anim. Sci. 79, 2123-2133
• Cranwell P.D., Moughan P.J., 1989. Biological limitations imposed by the digestive system to the growth performance of weaned pigs. In: J.L. Barnett, D.P. Hennesy (Editors). Manipulating Pig Production II. Australasian Pig Science Association. Werribee (Australia), pp. 140-165
• Franco L.D., Fondevila M., Mota M., Solanas E., 2005. Effect of combinations of organic acids on gastric microbiology of weaned piglets. Arch. Zoot. 53, 301-308
• Fuller R., 1977. The importance of lactobacilli in maintaining normal microbial balance in the crop. Brit. Poultry Sci. 18, 89-94
• Funderburke D.W., Seerley R.W., 1990. The effects of postweaning stressors on pig weight change, blood, liver and digestive tract characteristics. J. Anim. Sci. 68, 155-162
• Gauthier R., 2002. Intestinal health, the key to productivity: The case of organic acids. In: XXVII Convencion ANECA-WPDC. Jal. Mexico, Puerto Vallarta, pp. 8-10
• Hampson D.J., Kidder D.E., 1986. Influence of creep feeding and weaning on brush border enzyme activities in the piglet small intestine. Res. Vet. Sci. 40, 24-31
• Kelleher S.L., Lonnerdal B., 2001. Immunological activities associated with milk. Advan. Nutr. Res. 10, 39-65
• Lupton J.R., Javobs L.R., 1987. Fiber supplementation results in expanded proliferative zones in rat gastric mucosa. Amer. J. Clin. Nutr. 46, 980-984
• Manzanilla E.G., Perez J.F., Martin M., Kamel C., Baucells F., Gasa J., 2004. Effect of plant extracts and formic acid on the intestinal equilibrium of early-weaned pigs. J. Anim. Sci. 82, 3210-3218
• Mukiibi-Muka G., Jones R.C., 1999. Local and systemic IgA and IgG responses of chicks to avian reoviruses: effects of age of chick, route of infection and virus strain. Avian Pathol. 28, 54-60
• Nabuurs M.J.A., 1995. Microbiological, structural and functional changes of the small intestine of pigs at weaning. Pig News Inform. 16, 93-97
• Risley C.R., Kornegay E.T., Lindemann M.D., Wood C.M., Eigel W.N., 1992. Effect of feeding organic acids on selected intestinal content measurements at varying times postweaning in pigs. J. Anim. Sci. 70, 196-206
• Schat K.A., Myers T.J., 1991. Avian intestinal immunity. Crit. Rev. Poultry Biol. 3, 19-34
• Sutton A.L., Patterson J.A., Kelly D. T., 1996. Effects of dietary carbohydrates and organic acid additions on pathogenic E. coli and other microorganisms in the weaning pig. In: Proceedings of the 5th International Symposium on Animal Nutrition. Kaposvar (Hungary), pp. 31-61