- Researcher, Department of Agricultural Technology, Ekiti State Polytechnic, Isan Ekiti
- Researcher, Department of Agricultural Technology, Obafemi Awolowo University,, Ile-Ife, Nigeria
This study investigated the effects of different levels of energy, lysine and energy/lysine ratios on growth performance, nutrient digestibility and serum biochemical indices of Locally Adapted turkeys. The experiment lasted for 28 days. A total of one hundred and fourty-four, 4-weeks old locally adapted turkey poults were completely randomized to six dietary treatments in a 2×3 factorial arrangement, replicated twice at 12 poults per replicate. Six diets were formulated. Diets 1 to 3 contained 2900 kcal/kg ME (12.14 MJ/kg ME) while diets 4 to 6 contained 3000 kcal/kg ME (12.56 MJ/kg ME). The dietary lysine levels at the different energy levels are 13.50 g/kg, 15.00 g/kg and 16.1 g/kg respectively at 260 g/kg CP level. The resultant energy/lysine (E/Lys) ratios of diets 1 to 6 were 9:1, 8.1:1, 7.5:1, 9.3:1, 8.4:1 and 7.8:1 respectively. The daily feed intake and FCR of locally adapted turkeys were significantly (P<0.05) influenced by energy × lysine interaction. There was significant (P0.05) of energy, lysine, energy/lysine ratio and energy × lysine interaction on the final body weight (g/bird) and daily weight gain (g/bird) across all dietary treatments. There was significant (P<0.05) effect of energy on crude fibre (%) and ether extract digestibility. There were significant (P<0.05) lysine, energy/lysine ratio and energy × lysine interaction effects on the serum creatinine level of locally adapted turkeys in this study. Turkeys on energy level 3000 kcal/kg ME (12.56 MJ/kg ME), lysine level 15.00 g/kg, and E/Lys ratio 8.4:1 had the highest final body weight (1205.40 g/bird), daily weight gain (30.05 g/bird) and feed intake (56.77 g/bird).
Keywords: Locally adapted, nutrient requirements, energy/lysine ratio, poults, lysine, energy
[This article belongs to International Journal of Biochemistry and Biomolecule Research(ijbbr)]
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|Received||December 31, 2022|
|Accepted||January 11, 2023|
|Published||January 31, 2023|