A. O. Fasuyi
Department of Animal Production and Health, University of Ado-Ekiti, Ekiti State, Nigeria
V.A. Aletor
Division of Nutritional Biochemistry, Department of Animal Production and Health,
The Federal University of Technology, Akure, Nigeria
ABSTRACT
Cassava (Manihot esculenta, Crantz) leaf protein concentrate (CLPC) was used to replace a known and conventional source of protein in broiler starter diets 2, 3, 4, 5, and 6 at 20, 40, 60, 80 and 100% respectively. The reference diet 1 was one where fish meal was the major source in the diet without CLPC. The inclusion level of CLPC was 1.61, 3.22, 4.82, 6.43 and 8.04 respectively for diets 2 to 6. A batch of 120 starter chicks was randomly assigned in triplicate to these dietary treatments (i.e. chicks/treatment). The final weight and average weight gain of diet 1 (0% FM replacement) was significantly higher than others (P < 0.05) even when the average feed consumption was similar for diets 1, 2, 3 and 4. The feed efficiency (FE) for diets 1 and 2 was also similar (P = 0.05). The nitrogen retention for diets 1, 2 and 4 was similar (P = 0.05). Diets 2, 3 and 4 also had similar values (P = 0.05). The dressed weight of chicks in diets 2 and 6 was similar (P = 0.05) while that of diets 5 and 6 was also similar (P = 0.05). Except for kidney, pancreas and lungs, all other organs measured showed similar values (P = 0.05). The weight of inner chest muscle (supra coracoideus) of birds on diets 1, 2, 3 and 4 were similar (P = 0.05). The weight of outer chest muscle (Pectorialis thoracicus) and thigh muscles (Gastrocnemius) were similar (P = 0.05) with diet 5 (80% FM replacement with CLPC) having the longest inner chest muscle length of 20.7±4.3cmkg-1. Except for red blood cell (RBC) and mean cell volume (MCV), all other parameters measured were similar (P = 0.05). The values of total serum protein, albumin, globulin and albumin/globulin ratio were similar (P = 0.05). Also the values for liver protein, albumin, globulin and liver albumin/globulin ratio were similar (P = 0.05). It was concluded that CLPC as a replacement for FM as a protein source had no deleterious effect up till 60%. However, several parameters investigated strongly support a realistic replacement of 40% FM with CLPC in practical diets. Performance can still be enhanced with supplementation of essential amino acids (EAAs).
How to cite this article
A. O. Fasuyi and V.A. Aletor, 2005. Protein Replacement Value of Cassava (Manihot esculenta, Crantz) Leaf Protein Concentrate (CLPC) in Broiler Starter : Effect on Performance, Muscle Growth, Haematology and Serum Metabolites. International Journal of Poultry Science, 4: 339-349.
DOI: 10.3923/ijps.2005.339.349
URL: https://scialert.net/abstract/?doi=ijps.2005.339.349
DOI: 10.3923/ijps.2005.339.349
URL: https://scialert.net/abstract/?doi=ijps.2005.339.349