T-cannulation methods on ileal digestibility of nutrients in pigs

Schothorst Feed Research, P.O. Box 533, 8200AM Lefystad, the Netherlands 

The aim of the current experiment was to compare the variation in ileal digestibility between the slaughter and T-carmulation methods, when a balance diet and a high fibre diet are used. This will be used for calculating the number of rephcates for each method and investigate if type of diets should be take into accoimt the type of diet tested. 

In total two trials were performed. In trial 1 the slaughter method was used, while in trial 2, the T-cannulation method was used after which the animals were slaughtered. 

Two different diets were used in both experiments. Diet Awas based on barley (29%), wheat (29%), peas (10%) and maize (8%), while diet B was based on wheat DDGS (30%), barley (20%), wheat (20%), peas (7%) and maize (5%). Cr20j (0.3%) was added as a marker to the diets. Apparent ileal digestibility was calculated using the marker concentration in feed and deal content, in combination with the concentration of nutrients. 

A two way Anova comparison between the two diets for all nutrients was performed. For calculating the number of replicates needed using the slaughter and T-cannulation methods, values obtained for diet A and B were used. Calculations were done with accuracy of 80 and 90%, difference in responses were detected at 1.0,1.5 and 2.0 units. Statistical analyses were performed in GenStat. 

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Comparison of the slaughtering and the T-cannulation methods on ileal digestibility of nutrients in pigs... 

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