Evaluation of fermented pineapple (Ananas comosus) peel meal as a substitute for maize meal in the diet of Nile tilapia, Oreochromis niloticus

Abstract

A feeding trial was conducted to investigate the effect of fermented pineapple peel meal (FPM) on Nile tilapia, Oreochromis niloticus fingerlings. One hundred and eighty (180) fingerlings of Nile tilapia (1.35±0.13g) were stocked and fed at 5% body weight per day for 56 days. Four iso-nitrogenous diets containing 35% crude protein in which corn meal was replaced by fermented pineapple peel meal at 0% (FPM0), 25% (FPM25), 50% (FPM50) and 75% (FPM75) were formulated and prepared. There was no significant difference (p>0.05) in growth, nutrient utilization, survival, protein digestibility and blood parameters between the fish fed the reference diet (FPM0) and fish fed diet FPM75. Weight gain (3.57g) was highest in fish fed diet FPM75 and lowest (2.18g) in fish fed diet FPM50. Feed conversion ratio was lowest (1.70) in fish fed diet FPM25 and highest (1.77) in fish fed diet FPM50 while protein efficiency ratio was highest in fish fed diets FPM0 (1.22) and lowest (I.03) in fish fed diet FPM50.Highest value of packed cell volume (36.33%) was in fish fed diet FPM25 while the lowest value (33.00%) was recorded in fish fed diet FPM75. From the above results therefore, yellow maize could be replaced with fermented pineapple peel meal at 75% level in the diet of Nile tilapia, Oreochromis niloticus without affecting fish growth, nutrient utilisation, protein digestibility and the blood profile.

Pineapple Pomace as Replacement for Wheat Bran in a Practical Extruded Diet for Catfish (Clarias gariepinus)

“…The results were consistent with Heuzé et al (2013), Lamidi et al (2008), Akegbejo-Samsons et al (2006, Obasa et al (2021) that established the use of dried fruit processing wastes to be safely introduced up to and above 25% inclusion rate in the animal feed diet. The growth performance in our study was comparable to the report by Hossain et al (2015), Nwanna et al (2007) and Van Doan ( 2021), but in contrast to the results of Hotfman et al (1997), who noted a reduction in final weight and SGR in the African catfish-fed diet with a higher percentage of pomace in the fish diet.…”

“…Currently catfish (Clarias gariepinus) is the main fish that the largest part fish farms in Nigeria focus on as it can fetch prices as high as 3-5 USD/kg in the markets. The use of pineapple based products in fish diet has been restricted to the herbivores fish species especially Nile tilapia (Obasa et al 2021;Van Doan et al 2021). Their growth rates and digestibility of feed, however, proved unsatisfactory (Manju et al 2015) when the feed components were replaced by fruit pomace at higher inclusion in feed.…”