Hossein Jahanian Najafabadi
Department of Animal Science, Ferdowsi University of Mashhad, Mashhad, P.O. Box: 91775-1163, Iran
Hassan Nassiri Moghaddam
Department of Animal Science, Ferdowsi University of Mashhad, Mashhad, P.O. Box: 91775-1163, Iran
Javad Pourreza
Department of Animal Science, Isfahan University of Technology, Isfahan, P.O. Box: 84156, Iran
Feridoon Eftekhar Shahroudi
Department of Animal Science, Ferdowsi University of Mashhad, Mashhad, P.O. Box: 91775-1163, Iran
Abolghasem Golian
Department of Animal Science, Ferdowsi University of Mashhad, Mashhad, P.O. Box: 91775-1163, Iran
ABSTRACT
In order to study the chemical composition, mineral contents and protein quality of poultry by-product meal (PBPM), 10 composed samples of PBPM produced in Iran were provided during two months sampling period from rendering units of three industrial poultry slaughter-houses. The proximate analysis showed that the average dry matter (DM), ether extract (EE), crude protein (CP), crude fiber (CF) and ash of the PBPM samples were 94.8, 23.4, 60.5, 0.90, and 9.3 percent, respectively. The average gross energy (GE) value for the PBPM samples was 5645 kcal kg-1. The average values of major elements including Ca, P, Na, K, Cl, Mg, and S were 3.51, 1.88, 0.52, 0.31, 0.74, 0.06, and 0.99 percent, respectively. The average values of trace elements including Fe, Cu, Mn, Zn, and Se were 623.2, 9.3, 16.5, 47.8, and 0.73 mg kg-1, respectively. Biological evaluation of protein quality was done by chicks fed a nitrogen-free basal diet (as negative control) or chicks fed semipurified diets containing 10 percent crude protein from the PBPM or Kilka fish meal (as positive control) as the sole source of dietary protein. The values of protein efficiency ratio (PER) and net protein ratio (NPR) showed significant differences (p<0.05) among the PBPM samples and varied between 1.45 to 2.05 and 2.31 to 2.87, respectively. The PER and NPR values for the PBPM samples were significantly lower (p<0.05) than that of Kilka fish meal.
PDF Citation
How to cite this article
Hossein Jahanian Najafabadi, Hassan Nassiri Moghaddam, Javad Pourreza, Feridoon Eftekhar Shahroudi and Abolghasem Golian, 2007. Determination of Chemical Composition, Mineral Contents, and Protein Quality of Poultry By-Product Meal. International Journal of Poultry Science, 6: 875-882.
DOI: 10.3923/ijps.2007.875.882
URL: https://scialert.net/abstract/?doi=ijps.2007.875.882
DOI: 10.3923/ijps.2007.875.882
URL: https://scialert.net/abstract/?doi=ijps.2007.875.882