Effect of feeding different grain sources on the growth performance and body composition of tilapia, Oreochromis niloticus (L.)

Abstract

Growth performance and body composition of tilapiaOreochromis mloticus (L.), fed isonitrogenous and isoenergetic diets containing different grain sources (maize, wheat, barley, sorghum and rice) at a level of 25% were studied for a period of 62 days. Fish fed a diet containing sorghum showed the maximum weight grain, highest specific growth rate (SGR, 2.23), the best feed conversion (FCR, 1.07) and protein efficiency ratio (PER, 2.42) in comparison with ail other diets. The diets containing maize, wheat and rice did not show any significant (P < 0.05) differences between each other. The barley diet showed the poorest values (SGR. 2.05; FCR. 1.34; PER, 1.98; and NPR, 30.65) in comparison with others. Although the diet containing sorghum showed the best net protein retention (NPR, 36.21) values, the results did not differ (P > 0.05) among maize, wheat and sorghum diets. The sorghum diet produced fish with lower moisture but higher body fat contents as compared to others. The fish fed diets containing maize, wheat, barley and rice did not show any significant difference (P > 0.05) in their body moisture and fat contents. The source of grain in the diet did not affect the crude protein and ash contents of fish (P > 0.05). It is suggested that cereal grains at the 25% level can efficiently be utilized in tilapia diets, sorghum being the best.

Effect of sorghum replacement and probiotic on growth performance and feed utilization of the Nile Tilapia (Oreochromis niloticus)

“…The fish fed on the sorghum based diet was not statistically significant differences (P>0.05) comparing to the other fish fed on Zea maize. This observation agrees with the reported results of Al-Ogaily et al, (1996). The present results of whole body composition between different treatments were not affected by sorghum inclusion levels.…”

“…As presented in table 6, the growth performance parameters (final weight, daily gain, specific growth rate and condition factor) recorded an increase with T3, which incorporated 33% of sorghum meal to replacing 75% of maize meal. These results are agree with the results of certain fish species such as Tilapia, red tilapia, channel catfish, grass carp and sea bream possess the ability to utilize up to 40% of dietary (maize or sorghum) starch sources (Lin, 1991;Luquet, 1991;Satoh, 1991;Al-Ogaily et al, 1996;Wang, 2005 ;Solomon et al,2007). On the other hand, recording a high inclusion level of low tannin, sorghum 0.4% tannin up to (44% of diet) can be used in feeding of Nile tilapia.…”

Fibra bruta para alevinos de tilápia do Nilo (Oreochromis niloticus, L)

“…Entretanto, Al-ogaily (1996) observou Tabela 2 -Parâmetros avaliados nos alevinos de tilápia do Nilo submetidos a níveis crescentes de fibra na ração que o nível de 9% de celulose na ração de juvenis de tilápia do Nilo proporcionou maior desempenho; Diondick & Stom (1990), também encontraram maior índice de crescimento de alevinos de tilápia moçambica (O. mossambicus) quando alimentados com rações contendo 2,5 e 5,0% de fibra bruta em relação às que continham 0,0 e 10,0%. Shiau et al (1998)constataram diminuição do desempenho e piora na conversão alimentar de tilápias do Nilo alimentadas com níveis crescentes de carboximetilcelulose na ração.…”

Replacing dietary corn with barley seeds in Nile tilapia,Oreochromis niloticus(L.), feed

“…Many studies have shown that tilapia and carp fed barley‐based diets were inferior in terms of their growth parameters to those fed sorghum‐, wheat‐, wheat bran‐ and maize‐based diets separately ( Viola & Arieli 1983; Al‐Asgah & Ali 1994; Al‐Ogaily et al . 1996 ).…”

“…In other words, feeding lower levels of corn and barley would show superiority of the corn diet over the barley diet in terms of fish growth. This was demonstrated by Al‐Ogaily et al . (1996) when they compared a tilapia diet containing 25% corn and a diet containing 25% barley.…”