ABSTRACT
This study was
carried out to determine the effects of combined graded dietary levels of crude
protein and essential amino acids on the growth performance, carcass
characteristics, internal organ proportion, carcass nutrient composition, blood
profile, and economics of production of turkeys. One hundred and thirty five
day old poults were randomly allocated to dietary treatments in a 3x3 factorial
experiment in a Completely Randomized Design (CRD). Each treatment was
replicated thrice with 5 poults per replicate. The experiment was divided into
two phases, in the starter phase which lasted for eight (8) weeks the birds
were fed the treatment diets contained
dietary crude protein at 3 levels (A1 28%, A2 26% and A3 24%) and dietary amino acids at 3 levels each
(Methionine: B1 0.15%, 0.25% and 0.35% and Lysine: B2 0.30%,0.50%,0.70%),
whereas in the grower phase which
commenced from the nineth and ended sixteenth (9-16)
weeks, the birds were given the treatment diets contained 3 levels of crude
protein (AI 22%, A2 20%, and A3 18%) and 3 levels of amino acids each
(Methionine:B10.10%,0.20% and 0.30% and Lysine: B2 0.20%,0.40%,0.60%). The
study lasted for 16 weeks during which water and feed were given to the birds’ adlibitum. The initial body weight of
the birds which ranged from (43.67 – 44.00g) per bird were not significantly
different (P>0.05) from one another. The final weight of birds fed diet 3 at
(0-16) weeks was significantly higher (P<0.05) than others followed by that
of diet 9 whereas diet 2 has the least value (3050g), suggesting that high
methionine and lysine with low protein is adequate to support the growth of
birds. The feed intake of birds on diet 3 (133g) was significantly higher
(P<0.05) than others, whereas the feed intake of birds fed diet 4 has the
least value (115g). The weight gained and average daily weight gained took the
same pattern with the final weight of birds. The weight gained of diet 3
(4589g) was significantly higher (P<0.05) than others whereas that of diet 2
has the least value (3006g). However, diet 3 has the best feed conversion ratio
since it had the least numerical value (3.25f/g). This mean that diet 3 were
utilized better by birds for weight gained than others. There was no mortality
recorded during the cause of the experiment based on the treatment diets. There
were significantly difference (P<0.05) in carcass yield, cut-parts and organ
proportions parameters evaluated except the weight of the thigh. In carcass
proximate nutrient composition both in starter and grower phases: (Crude
protein, Ash, energy, Nitrogen free Extract and Ether extract) were all
statistically different (P<0.05). Result showed that blood profile indices
(hematology and serum chemistry) were significantly (P<0.05) influenced
across the treatment groups. In the economics of production at (0- 16) weeks,
diet 3 was significantly higher than others in almost all the parameters
examined. However, Diet 3 and 9 gave the best results in this study and it
should be recommended for local Turkey production which will in turn reduce the
problem of low protein supply to humanity.
JOY, O (2023). Effect Of Combined Graded Levels Of Crude Protein And Essential Amino Acids On The Performance Of Turkeys. Mouau.afribary.org: Retrieved Sep 08, 2024, from https://repository.mouau.edu.ng/work/view/effect-of-combined-graded-levels-of-crude-protein-and-essential-amino-acids-on-the-performance-of-turkeys-7-2
ORIFE, JOY. "Effect Of Combined Graded Levels Of Crude Protein And Essential Amino Acids On The Performance Of Turkeys" Mouau.afribary.org. Mouau.afribary.org, 13 Feb. 2023, https://repository.mouau.edu.ng/work/view/effect-of-combined-graded-levels-of-crude-protein-and-essential-amino-acids-on-the-performance-of-turkeys-7-2. Accessed 08 Sep. 2024.
ORIFE, JOY. "Effect Of Combined Graded Levels Of Crude Protein And Essential Amino Acids On The Performance Of Turkeys". Mouau.afribary.org, Mouau.afribary.org, 13 Feb. 2023. Web. 08 Sep. 2024. < https://repository.mouau.edu.ng/work/view/effect-of-combined-graded-levels-of-crude-protein-and-essential-amino-acids-on-the-performance-of-turkeys-7-2 >.
ORIFE, JOY. "Effect Of Combined Graded Levels Of Crude Protein And Essential Amino Acids On The Performance Of Turkeys" Mouau.afribary.org (2023). Accessed 08 Sep. 2024. https://repository.mouau.edu.ng/work/view/effect-of-combined-graded-levels-of-crude-protein-and-essential-amino-acids-on-the-performance-of-turkeys-7-2