Evaluation of Guar Meal as a Dietary Protein Source for Nile Tilapia (Oreochromis niloticus) Reared in Hapa-in-pond System

Effect of fish meal replacement with toasted guar meal on growth, food conversion, digestive enzyme activity and final carcass composition of rohu,Labeo rohita

“…Pach and Nagel (2017) reported a reduction in the carcass protein content of rainbow trout when dietary soybean meal was replaced at 1/3 rd , 2/3 rd and 100% with guar meal. On the other hand, in a study conducted by El-Sayed et al (2016), the carcass moisture and protein content were not affected when fish meal was replaced by guar meal at 75% level in the diet of Nile tilapia. In another study with Nile tilapia, the dietary guar seed content did not affect carcass protein and fat (Al-Hafedh & Siddiqui, 1998).…”

“…Incorporation of guar meal is also known to improve the palatability of test feeds (Pach & Nagel, 2017). The insignificant differences in TA B L E 3 Growth and survival (mean ± SD, n = 3) of rohu at harvest Experiments with common carp (Cyprinus carpio) and Nile tilapia (Oreochromis niloticus) had shown that guar meal is a viable fish meal (FM) and soybean meal alternative without negative effects on growth performance and feed utilization of omnivorous species (Al-Hafedh & Siddiqui, 1998;El-Saidy et al, 2005;El-Sayed et al, 2016). In the experiments with O. niloticus and C. carpio, substitution up to 680 g/kg (50% replacement of FM) in feed for O. niloticus and up to 410 g/kg of feed for C. carpio (50% replacement of FM) resulted in no significant effect on FCR, PER and carcass protein content (Al-Hafedh & Siddiqui, 1998;El-Saidy et al, 2005).…”

“…Information about the incorporation of guar meal in fish feed is limited. Except for a few studies on substitution of fish meal and soybean meal with gaur meal in the diets of common carp and Nile tilapia (Al-Hafedh & Siddiqui, 1998;El-Saidy et al, 2005;El-Sayed et al, 2016), on performance of mrigal fed raw and hydrothermally processed guar seeds (Garg et al, 2002), on comparison of digestibility of nutrients in rohu fed meat meal and guar meal (Asad et al, 2005) and on growth of rohu fed on unprocessed guar meal and commercial feed enzyme-treated guar meal incorporated in diets replacing fishmeal (Chovatiya, 2011), no other information is available on incorporation of gaur meal in aquaculture feed.…”

Effect of Guar Sprout Meal on the Growth, Nutrient Utilization and Hematological Characteristics of Genetically Improved Farmed Tilapia (Gift) Fingerlings

“…Therefore, plant protein sources which are proved to be more ecofriendly can be the alternative sources for the substitution of fish meal (Cho and Bureau, 2002;Gatlin et al, 2007;Alexander and Reinhard, 2011). Guar seed (especially its meal) is one of the potential nutrient sources for humans and land animals but very little attention has been given to use this resource in the aqua feed industry (Sayed et al, 2016). Interestingly, guar is a water resilient and versatile crop grows with limited inputs and can tolerate temperatures of 30°C to 40°C.…”

“…A similar kind of experiment was conducted by Sayed et al, (2016), investigating the effect of guar meal as a protein source replacing soybean meal in Nile tilapia fingerlings. The 105-day study showed excellent fish performance at all inclusion levels, but a decline in the growth rate was reported with an increase in the inclusion of GM levels beyond 20%.…”