Response to and Cost Effectiveness of Improved Kienyeji Chicken fed on Maize-Substituted Sorghum-Based Rations

  • Eric M. Manuya Department of Animal Sciences, University of Eldoret, P.O. Box 1125-30100, Eldoret, Kenya
  • Beatrice A. Were Department of Biological Sciences, University of Eldoret, P.O. Box 1125-30100, Eldoret, Kenya
  • Harold A. Rachuonyo Department of Animal Sciences, University of Eldoret, P.O. Box 1125-30100, Eldoret, Kenya
Keywords: Food insecurity, maize-substituted, sorghum based low-tannin, Improved kienyeji chicken, and formulated diets.

Abstract

Rearing improved indigenous chicken fed on locally available low cost, low tannin, sorghum based diets in the semi-arid areas of Western Kenya could address the region’s food insecurity resulting from low crop and livestock productivity. Current research is to assess the response to and socio-economic significance of improved kienyeji chicken fed on 4 maize substituted, sorghum-based diets. The diets had 2 varieties (V1 and V2) of sorghum substituting maize at 4 levels designated as T1 (0 %)-as a control, T2 (50 %), T3 (75 %), T4 (100 %). The eight dietery treatments (V1T1, V1T2, V1T3, V1T4, V2T1, V2T2, V2T3 and V2T4) were fed to 256 growers randomly assigned into sixteen pens in 2 replicates and fed for 20 weeks. Nutritional values, Feed intake, growth rate, survival rate, egg production rates and gross margins were determined.  Results showed statistical variations (p<0.05) obtained in the values for crude protein(CP) and Digestible Energy (DE). Treatment V2T3 had the highest CP content (20.49 %) while VIT2 had the lowest (15.03 %). Digestible Energy (DE) content was highest in V1T1 (3.3 Kcal/kg) while V1T4 had the lowest (2.483Kcal/kg).There was also statistical variations (p<0.05) in the feed intake, growth response parameters, feed conversion ratio (FCR) and survival rate (SR). Treatment V1T2 (54.2g) had the highest while V1T4 (39.3 g) had the lowest feed intake rate. Feed intake in variety V2 rations was not significantly different with a mean of 44.58g but lower than V1’s rations intake.  Growers fed on the control (V1T1 and V1T2) grew bigger and heavier (1118.8g & 1096.1 respectively) followed by V2T3, V1T2 then V2T2 respectively while V1T4 (559.0g) recorded the lowest and about half the mean growth rate. Treatments V2T2, V2T3 and V2T4 (961.45) recorded less but not significantly different from the control (p<0.05) growth rate. Feed conversion ratio was highest with V1T4 (6.7) and lowest in the control (V1T1 and V2T1). On survival V2T4 (94.1) had the highest while V1T4(61.3%) had the lowest survival rate.On egg production V2T1 (10.12%) had the highest while V1T4(0.56%) had the lowest laying percentage.Gross margin analysis based on feed cost showed diet V2T1 (control) had highest gross margin (Ksh330.79) while Diet V1T4 (Ksh135.97) recorded the lowest.To optimize cost of formulation and cost of feeding without adversely affecting performance , sorghum variety V2 should be included at an optimum inclusion rate of 75 % while V1 should be at an optimum inclusion rate of  50%  in the diets.

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Published
2020-03-20
How to Cite
Manuya, E., Were, B., & Rachuonyo, H. (2020, March 20). Response to and Cost Effectiveness of Improved Kienyeji Chicken fed on Maize-Substituted Sorghum-Based Rations. African Journal of Education,Science and Technology, 5(4), Pp 185-198. Retrieved from http://ajest.info/index.php/ajest/article/view/432
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Articles