Evaluation of raw and hydrothermically processed Prosopis juliflora seed meal as supplementary feed for the growth of Labeo rohita fingerlings

Abstract

Hydrothermically processed Prosopis juliflora (PJ) seed meal as a supplementary diet for Labeo rohita is found to be rich in protein (330 g kg−1) having antinutritional factors in permissible limits and containing essential amino acids adequately except lysine, methionine and cysteine. Ten iso‐nitrogenous and iso‐energetic diets with crude, soaked and autoclaved seed meal at 20%, 35% and 50% replacement of fish meal were tested (D1–D9, respectively). The growth of fish (weight gain, specific growth rate, feed conversion ratio and protein efficiency ratio) fed diet D4 (soaked seed meal at 20% replacement) was higher among the test diets, but lower than reference diet (RD). Diets with 50% seed meal resulted in lowering of growth, carcass composition, digestive enzyme activity and digestibility compared to test diets at 20% and 35% inclusion levels in the respective groups. Hydrothermically processed seed meal improved the growth compared to unprocessed one, though not up to RD level. This could be because of amino acid imbalance and presence of non‐starch polysaccharides in seed meal. Looking to the easy availability and its nutritional quality, processed PJ seed meal can be incorporated in carp diet at lower inclusion level.

Substituição do milho pelo farelo de algaroba (Prosopis juliflora) em dietas para juvenis de tilápia do Nilo cultivados em baixa temperatura

“…Tabela 2. Valores médios das variáveis de desempenho zootécnico de juvenis de tilápia do Nilo alimentados com dietas contendo farelo de algaroba em substituição ao milho hidrotérmico reduziu significativamente a concentração de fatores antinutricionais na farinha de sementes de P. juliflora, resultando em crescimento superior de juvenis de rohu Labeo rohita alimentados com a farinha tratada frente à farinha sem tratamento (Bhatt et al, 2011). Em adição, os mesmos autores não observaram efeito do tratamento hidrotérmico sobre a digestibilidade da proteína dietética pelos peixes.…”

Apparent digestibility of conventional and alternative feedstuffs by hybrid tambacu juveniles

“…A possible explanation for this might be that P. juliflora seeds are rich in mesquite gum (galactomannans) (Chaires-Martínez et al 2008). Previous research suggested that galactomannans decrease the availability of nutrients and growth of others species (Hossain et al 2003, Sawal et al 2004, Bhatt et al 2011.…”

Mesquite bean ( Prosopis juliflora ) meal in diets of Nile tilapia ( Oreochromis niloticus ): Nutritional value, growth, physiological responses and health

“…This may be one of the causes of the negative relationship between MBM inclusion and fish performance. The presence of phenolic compounds, as observed in sorghum (Pinto, Pezzato, Miranda, Barros, & Furuya, ) and mesquite bean seeds, is also associated with lower performance in fish (Bhatt et al, ).…”

“…Many plant‐based ingredients contain anti‐nutritional factors, such as phenols, tannins, phytins, non‐starch polysaccharides and protease inhibitors, which may impair nutrient utilization, growth performance and health (Bhatt, Chovatiya, & Shah, ; NRC, ). Al‐Marzooqi and Wiseman () confirmed the presence of tannins, phytic acid and trypsin inhibitors in mesquite seed pods.…”