EVALUACIÓN DE LA CALIDAD NUTRICIONAL Y FUNCIONAL DE LA SEMILLA DE ALPISTE (Phalaris canariensis) COMO FUENTE DE FITOESTEROLES EN ALIMENTOS BALANCEADOS PARA TILAPIA NILÓTICA (Oreochromis niloticus)
It is estimated that in the coming years the consumption of tilapia in its different presentations increase more than 50%, which will be produced mainly through aquaculture, becoming one of the main sources of protein worldwide. Thus, Currently research is focused on the search for new ingredients n...
| Autores: | , |
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | México |
| Institución: | Universidad Autónoma de Nayarit |
| Repositorio: | Repositorio Institucional Aramara de la UAN |
| Idioma: | español |
| OAI Identifier: | oai:dspace.uan.mx:123456789/2304 |
| Acceso en línea: | http://dspace.uan.mx:8080/jspui/handle/123456789/2304 |
| Access Level: | acceso abierto |
| Palabra clave: | TILAPIA, ALIMENTACIÓN, NUTRICIÓN, PROTEÍNA, ALPISTE CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA [6] |
| Sumario: | It is estimated that in the coming years the consumption of tilapia in its different presentations increase more than 50%, which will be produced mainly through aquaculture, becoming one of the main sources of protein worldwide. Thus, Currently research is focused on the search for new ingredients not conventional for the food and nutrition of tilapia. In Mexico, an ingredient with potential to be used in feed for tilapia is the seed of birdseed, since it has an adequate protein content and essential amino acid profile, which are similar to other cereal grains that are conventionally used as ingredients for tilapia growth. In addition, birdseed has a low anti-nutritional profile and provides an important contribution of substances with functional properties such as those of phytosterols, which lower cholesterol and triglyceride levels in humans and different animal species. Therefore, the objective of this investigation was the evaluation nutritional and functional of the canary seed by means of a growth bioassay with duration of 60 days in nilotic tilapia specimens of 40 g initial weight, where determined survival, growth rate, weight gain, feed conversion and protein efficiency every 15 days, through 4 isoproteic and isolipidic diets, one of they control it and three with different levels of birdseed (10%, 20% and 30%). The diets were analyzed to determine its hydrostability, proximal composition and profile of phytosterols. On the other hand, the concentration of total cholesterol, cholesterol bound to LDL lipoproteins, HDL lipoprotein cholesterol and triglycerides in fillet, liver and blood at the end of the bioassay, in addition to sensory quality in terms of taste, color, odor and texture of tilapia fillet by a group of potential consumers using a unstructured hedonic climbing. The results obtained were analyzed by ANOVA and in his Tukey's multiple comparison test of means (P <0.05), except the results of the sensory evaluation that were analyzed by means of the U Mann-Whitney test with an α of 0.05. The results obtained show that at levels of 20% and 30% inclusion of canary seed in the diet decreases the hydrostability of the diets (P <0.05), in addition to the presence of β-sitosterol, followed by campesterol and stigmasterol. |
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