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HomePhilippine Journal of Veterinary and Animal Sciencesvol. 30 no. 2 (2004)

Pancreatic Amylase, Lipase and Trypsin Activities in Growing Sasso Chicks

Ninfa P. Roxas | Mylen S. Billena | Orville L. Bondoc

Discipline: Animal Science



Two hundred ninety-five (295) day-old Sasso chicks were randomly distributed into three treatments: (1) fed immediately after hatching with organically formulated diet, (2) fed 36 h post hatch with organically formulated diet, and (3) fed 36 h post hatch with commercially prepared feed. Pancreatic tissues were collected from five chicks in each treatment on sampling days 1, 3, 5, 9, 12, 15, 18, 25, 32, 39, 45, 53, 60, 67, and 90. Samples were analyzed for activity of pancreatic enzymes amylase, lipase and trypsin. Amylolytic and proteolyticenzyme activities increased at a relatively slow rate in the pancreas of chicks fed with either commercial or organically formulated diets. Synthesis of both amylase and trypsin by the pancreatic tissue started to dramatically increase at around 46 days, reaching the peak at 60 days. This could explain the growth pattern of Sasso, wherein it was observed to be slow at early stage of growth, similar to that of the native chickens. However, after 60 days the growth rate was very rapid.