THE EFFECTIVITY TEST OF SHEEP RUMEN LIQUOR ENZYME ADDED TO PALM KERNEL MEAL ON ITS DECREASE OF CRUDE FIBER AND APPARENT DIGESTIBILITY COEFFICIENT FOR CATFISH Pangasius hypophthalmus DIET
Abstract: Two experiments were
conducted to evaluate the hydrolysis of fiber content in palm kernel meal (PKM)
by sheep rumen liquor enzyme and to know the apparent digestibility coefficient
of hydrolyzed PKM for catfish Pangasius hypophthalmus. The first trial examined
effectivity of sheep rumen liquor enzyme to decrease crude fiber content of
PKM. The added volume of sheep rumen liquor enzyme was 0, 20, 40, 60, 80, and
100 mL/kg PKM and then it was incubated for 0, 12, and 24 hours. A factorial
completely randomized experimental design consisted of 2 variables and
triplicates were selected. The second trial was conducted to evaluate the
apparent digestibility coefficients of hydrolized PKM for catfish. Apparent
digestibility coefficients were determined using chromic oxide indicator added
to both reference and test diets. The feed ingredients used in the trial were
hydrolyzed PKM (PKMe) and unhydrolyzed PKM (PKM). Ten fishes with weighing
around 20 g were used in the trial and held in 80 l tanks. Feces were collected
from three replicate groups of fish using a fecal collection column attached to
fish rearing tank. PKM hydrolyzed with 100 mL/kg and incubated for 24 hour
showed the lowest crude fiber content (6.99%) among the treatments (P<0.05).
Apparent digestibility coefficient of hydrolyzed PKM was 57.57% compared with
unhydrolyzed PKM 15.31%. Based on the evaluation in those parameters it was
concluded that sheep rumen liquor enzyme added to PKM was effective to decrease
crude fiber content of PKM and improve apparent digestibility coefficient of
PKM for catfish.
Keywords: apparent
digestibility coefficient; catfish; crude fiber; palm kernel meal; sheep rumen
liquor enzyme
Author: Wahyu Pamungkas, Dedi
Jusadi, Nur Bambang Priyo Utomo
Journal Code: jpperikanangg110018
