Indian Journal of Animal Research

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Research Article

Indian Journal of Animal Research, volume 51 issue 6 (december 2017) : 1073-1079

Effect of dietary crude fibre level on intake, digestibility and productivity of slow-growing indigenous Venda chickens aged one to 91 days

Muzi M Ginindza, Jones W Ng’Ambi, David Norris
1<p>&nbsp;Department of Agricultural Economics and Animal Production,&nbsp;University of Limpopo, Private bag X1106, Sovenga-0727, South Africa.</p>
Cite article:- Ginindza M Muzi, Ng&rsquo;Ambi W Jones, Norris David (2017). Effect of dietary crude fibre level on intake, digestibility and productivity of slow-growing indigenous Venda chickens aged one to 91 days . Indian Journal of Animal Research. 51(6): 1073-1079. doi: 10.18805/ijar.v0iOF.7255.

ABSTRACT

Two experiments were conducted to determine diet crude fibre (CF) levels for optimal productivity of slow-growing indigenous Venda chickens. In each experiment the diets were isocaloric and isonitrogenous but with different CF levels of 2, 3, 5, 6 and 8%. A complete randomised design was used in both experiments, the starter (1-49 days) and finisher (50-91 days). A quadratic equation was used to determine CF levels for optimal productivity. Dietary CF levels of 3.4, 4.0 and 3.0 % optimised growth rate, feed conversion ratio (FCR) and live weight of unsexed Venda chickens (starter), respectively; and higher dietary CF levels resulted in lower (P<0.05) intake and digestibility. Dietary CF levels of 6.5, 4.3, 3.2 and 4.4 % optimised feed intake, growth rate, nitrogen retention and live weight of male Venda chickens (finisher), respectively; while higher dietary CF levels resulted in poor (P<0.05) FCR and nutrient digestibility. The results indicate that different CF levels optimised production parameters, and dietary CF levels for optimal productivity increased as chickens grew older.  

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