Call Prefix : PR-T

Call Suffix : 1994

Call Cutter : D - AnSc 23

Location : SEARCA Library

Format : TD

Publisher : University of the Philippines Los Baños,

Publication Date : September 1994

Publication Place : Los Baños, Laguna, the Philippines :

Summary : Three experiments, two in broilers and one in layers were conducted to determine the feeding value of pigeonpea seed meal (PPSM). In the broiler experiments, 416 seven day-old commercial broiler chicks each and 255 twenty-nine week-old brown-feathered egg-type pullets in layer experiments were used. Broilers in experiment 1 were randomly assigned to 13 dietary treatments (three kinds and four levels of PPSM + one control). In broiler experiment 2, two kinds (raw and boiled), three levels of PPSM and two levels of methionine were used. In layer experiment, two kinds and four levels of PPSM and two levels of methionine were used. The PPSM used in this study had less than half of the crude protein contents but much higher nitrogen-free extract compared to soybean meal. Trypsin inhibitor was almost completely eliminated by heat-treatment, while tannin was only partly affected. Heat-treatment of the pigeonpea seed decreased the ariginine content. On the average, pigeonpea seed meal had higher lysine, threonine, phenylalanine, valine, and histidine but lower in arginine, tryptophan, isoleucine and leucine compared to soybean meal. The apparent metabolizable energy (AME) and true metabolizable energy (TME) content of PPSM were significantly improved by boiling (2596.0 kcal/kg DM) and roasting (2576.1 kcal/kg DM). However, when the energy values were corrected for nitrogen, significant increase in energy content was obtained only from boiling but not from roasting the PPSM. The additional amount of palm oil used to the make the diets isocoloric increased the ether extract and gross energy contents of diets with higher levels of PPSM. The increased level of PPSM the crude fiber contents of the diets. The coefficient of digestibility of crude protein significantly decreased with increased level of PPSM in broiler starter, broiler finisher and layer diets. The coefficient of digestibility of ether extract of broiler finisher diets significantly decreased with higher inclusion of PPSM.