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- Title
Effects of the Addition of Trichoderma reesei Cellulase to Broiler Chicken Diets for a 21-Day Period.
- Authors
Perim, Francisco dos Santos; da Silva, Weslane Justina; de Souza, Dênia Oliveira; Ulhoa, Cirano José; Rezende, Camila Ferreira; dos Santos, Ludmilla Faria; dos Santos, Fabiana Ramos; Silva, Fabiano Guimarães; Minafra, Cibele Silva
- Abstract
Simple Summary: The use of enzymes in the feed of chickens and the production animals is already well established, given the nutritional and economic benefits that can be achieved without affecting the quality of the final product. Among research efforts, new discoveries are made every day regarding the potential of products developed to provide efficient enzymes as additives in animal diets. Therefore, this study investigated the influence of enzymes produced from the cultivation of Trichoderma reesei in powder and liquid forms on the feeding of broiler chickens from 1 to 21 days of age. The diets were composed of corn and soybean meal, and this study evaluated their effects on performance, digestibility, blood parameters, and the biometry of the digestive system. The enzymes produced, cellulases, affected feed intake, digestibility, and blood electrolyte concentrations were quantified. However, the biometry of the digestive system and analyses of pancreas and liver viscera were not altered, which may indicate normal bird development and the absence of toxicity. In conclusion, Trichoderma reesei cellulases are an interesting option for use in animal diets. The cellulose present in the cell wall of vegetables prevents the greater release of nutrients to the animal. Therefore, the use of the cellulase enzyme is a viable strategy as it is capable of breaking cellulose bonds, releasing nutrients such as glucose, increasing dietary energy, and thus improving the productive performance of birds. Trichoderma reesei is efficient in the production of cellulase, which is produced via submerged fermentation followed by purification, formulation, and drying. Therefore, an experiment was carried out using 240 male broilers of the Cobb-500® lineage to verify the effects resulting from the addition of powdered (500 g/t and 1000 g/t) and liquid (500 mL/t) cellulase over a period of 1 to 21 days. A completely randomized experimental design was used, consisting of four treatments with six replications and ten birds per replication that were housed in an experimental cage. It was observed that performance and digestibility results were significantly different with cellulase supplementation. Also, the relative weight of the large intestine in the period between one and seven days increased when cellulase was added at 1000 g/t. In the period of between eight and 14 days of life, the birds that consumed only the basal diet obtained higher levels of liver protein than those that received the treatments with the addition of the enzyme. However, 15 and 21 days, the consumed feed effect did not occur between thus, it is not conclusive whether hepatotoxicity occurs with the addition of cellulase. For the blood parameters, at 21 days, the diets with added cellulase were not significantly different regarding electrolytes. It was concluded that this cellulase produced by Trichoderma reesei can be included in the animals' diet.
- Subjects
TRICHODERMA reesei; CELLULASE; BROILER chickens; POULTRY growth; LIVER proteins; ANIMAL feeding behavior; PLANT cell walls; PANCREAS
- Publication
Animals (2076-2615), 2024, Vol 14, Issue 10, p1467
- ISSN
2076-2615
- Publication type
Article
- DOI
10.3390/ani14101467