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Non-starch polysaccharides and phytate are commonly recognized as the primary antinutritional components in animal feed, and there is no corresponding enzyme in animals. Previous research has demonstrated that supplementing diets with a combination of multi-carbohydrase and phytase enzymes plays a significant role in enhancing the digestibility of energy, amino acids, calcium, and phosphorus in fattening pigs, regardless of the nutritional content of the diet. As a result, this supplementation leads to increased deposition of calcium and phosphorus in bone, improves the growth rate, and enhances feed efficiency in fattening pigs. This study was conducted to investigate the effects of dietary multi-enzyme (multi-carbohydrase and phytase complex) supplementation on digestibility, growth performance, bone mineralization, and carcass yield and traits in growing-finishing pigs fed diets with adequate or deficient net energy, amino acids, calcium and phosphorus levels. A total of 576 crossbred [Duroc × (Landrace × Yorkshire)] barrows (~25 kg) were fed one of the six diets till live weight approached 130 kg. Basal diets included a positive control, negative control 1 and 2, while another three diets were prepared by adding multi-carbohydrase and phytase complex to the three basal diets.
The final body weight was lower in negative control 2 than in negative control 1 and positive control treatments, while overall feed intake and feed-gain ratio were higher in negative control 1 and negative control 2 than in positive control treatment. The negative control 2 treatment showed lower carcass weight but higher lean meat percentage than the positive control treatment. The apparent ileal digestibility of gross energy, crude protein and amino acids was decreased or tended to decrease in negative control 1 and/or negative control 2 diets compared with a positive control diet. Multi-carbohydrase and phytase complex supplementation improved apparent ileal digestibility of calcium, phosphorus and amino acids (Lys, Leu, Val, Phe, Gly, Tyr and Pro), apparent total-tract digestibility of gross energy, crude protein, bone strength, calcium, and phosphorus retention.
In conclusion, multi-carbohydrase and phytase complex supplementation improved nutrient digestibility, bone mineralization, and growth performance of fattening pigs, regardless of the nutritional level of the basal diet.
Chen F, Yang L, Zhe L, Jlali M, Zhuo Y, Jiang X, Huang L, Wu F, Zhang R, Xu S, Lin Y, Che L, Feng B, Wu D, Preynat A, Fang Z. Supplementation of a Multi-Carbohydrase and Phytase Complex in Diets Regardless of Nutritional Levels, Improved Nutrients Digestibility, Growth Performance, and Bone Mineralization of Growing–Finishing Pigs. Animals. 2023; 13(9): 1557. https://doi.org/ 10.3390/ani13091557