Exocrine Pancreatic Secretions in Young PigsFed Diets Containing Faba Beans (Vicia faba)and Peas (Pisum sativum): Nitrogen, Protein and Enzyme Secretions

✍ Scribed by Gabert, Vince M; Sauer, Willem C; Li, Shaoyan; Fan, Ming-Zhe; Rademacher, Meike

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 850 KB
• Volume: 70
• Category: Article
• ISSN: 0022-5142
• DOI: 10.1002/(sici)1097-0010(199602)70:2<247::aid-jsfa497>3.0.co;2-r

✦ Synopsis

Two experiments were carried out to investigate the effect of feeding diets containing faba beans and peas on pancreatic secretions in young pigs fitted with a pancreatic pouch re-entrant cannula. In Experiment 1, eight barrows, with an average initial weight of 8.5 kg, were fed one of two maize starch-based diets formulated to contain 200 g crude protein (CP) kg-according to a completely randomised design. In one of the diets, soya bean meal was the sole protein source; in the other diet, soya bean meal and faba beans (cv Fibro; dark-flowering) each supplied 50% of the dietary CP. In Experiment 2, five barrows, with an average initial weight of 18.1 kg, were fed one of two diets according to a twoperiod change-over design. The diets were formulated to contain 150 g CP kg-' with peas (cv Ascona or cv Radley) as the sole protein source. In both experiments, the experimental periods consisted of 8 days: 6 days adaptation followed by a 2 day collection of pancreatic juice. The soya bean meal diet and the faba bean diet contained 0.04 and 0.21% tannins (catechin equivalents), respectively. The trypsin inhibitor activities of the Ascona and Radley pea diets were 0.76 and 3-24 mg of trypsin inhibited per gram, respectively. In both experiments, diet did not affect (P > 0.05) the pancreatic secretions of nitrogen, protein, amylase, lipase and chymotrypsin. In Experiment 1, specific trypsin activity was higher (P < 0.05) in pancreatic juice from pigs fed the diet containing soya bean meal and faba beans (53 700 units litre-') than for those fed the soya bean meal diet (41 200 units litre-'). However, there was no effect (P > 0.05) when trypsin activity was expressed as total activity (units 24 h-'). It is concluded that the inclusion of faba beans and peas in diets for young pigs has only minor effects on exocrine pancreatic secretions.