Response of two strains of broiler to feed containing singlecell protein /
by Minerva Joy C. Jimenez.
- Indang, Cavite, Cavite State University- Main Campus, 1999.
- xix, 99 pages : illustrations ; 28 cm.
Thesis (B.S.A.--Animal Science) Cavite State University
Includes bibliographical references.
College of Agriculture, Food, Environment and Natural Resources (CAFENR) College of Agriculture, Food, Environment and Natural Resources (CAFENR)
Jimenez, Minerva Joy C. Cavite State University, Indang, Cavite. B. S. Thesis "Response of Two Strains of Broiler to Feed Containing Single-Cell Protein". Dr. Pedro Q. Olabe, thesis adviser. A study was conducted to determine the response of two broiler strains to rations containing two levels of Single-Cell Protein (SCP). Two strains (Avian 43 and Anak 180) and two treatments (Treatment I, containing 0% SCP and Treatment II, containing 60/0 SCP) were used in the study. Results showed significant differences (P<0.05) in body weight and feed conversion efficiency between strains from first to sixth weeks and between treatments during the sixth week. No significant differences (P>0.05) were observed on the feed consumption of the birds. Strain B consumed a lower amount of feed but was not that efficient. Birds subjected to Treatment II were more efficient (P<0.05) than those in Treatment I. Mortality was very low and occurred only in Strain A. Average dressed weight and dressing percentage were significantly higher (P<0.05) in Strain A than Strain B and in Treatment II than Treatment I. No significant differences (P>0.05) were observed in the relative weights of gizzard, liver, heart, and intestines. Generally females have heavier weights of these organs than males. There were Sex x Treatment and Strain x Sex x Treatment interactions (P<0.01) in the relative weight of the feather. Male birds from Treatment I-Strain A had heavier feather weight than females. Strain B had heavier feather weight than Strain A and Treatment I heavier than Treatment II. Abdominal fat pad was influenced by Sex and Strain x Treatment interaction. Females have significantly (P<0.05) heavier abdominal fat pad. Under Treatment I, Strain B had heavier fat pad than Stain A . While under Treatment II, Strain A was heavier than Strain B. No significant differences (P>0.05) were observed in the odor, tenderness, off-flavor and general acceptability of the meat from the two strains subjected to two levels of SCP. Strain A was more appealing (P<0.05) than Strain B. Strain A and Treatment I was more profitable than Strain B and Treatment II. Overall, Strain A subjected to Treatment I gave the highest return.