Enzyme complex supplementation in different nutrient levels diets on pigs feces excretion and anaerobic digestion

Abstract

This research aimed to evaluate enzyme supplementation in diets with different nutritional levels for pigs in their feces excretion and anaerobic digestion. Fifty four gilts were placed on diets formulated to achieve 100 or 95 or 90 % of a pig's nutrient requirements, with the addition of an enzyme complex containing amylase, β-glucanase, cellulase, pectinase, xylanase, protease and phytase (diets 100E, 95E and 90E) or without the enzymes (diets 100, 95 and 90). The trial was divided into three periods (1, 1-2 and 1-3) based on the animal weight. The enzyme complex reduced (p < 0.05) excretions per period and per unit of weight gain (residue coefficients) of organic matter (OM) in Period 1, of N, Ca, Zn and Na in Period 1-2, and of Na excretions and residue coefficients in Period 1-3. Animals fed diet 95E had lower excretions (p < 0.05) of dry (DM), organic and mineral matters, N, Ca, Fe, Mn and Cu, and lower residue coefficients (p < 0.05) of DM, OM, P, Fe, Mn and Cu compared with the animals fed diet 95, in Period 1-3. Numerically, the enzyme complex improved biogas and methane production potentials in anaerobic digestion of the feces. The use of an enzyme complex in a diet formulated to provide 95 % of the gilts' nutrient requirements reduced fecal excretion and positively affected the anaerobic digestion of feces. These data show that pig nutrition and feeding are important tools for reducing the potential environmental impact of pig production.

Growth performance, nutrient digestibility, fecal microbial diversity and volatile fatty acid, and blood biochemical indices of suckling donkeys fed diets supplemented with multienzymes

“…In our study, feeding multienzymes supplementations significantly changed the bacterial diversity in donkey feces and significantly increased ACE, Chao1, and Shannon indices. This is consistent with the research results of Yang et al in broilers [ 29 ]. With the addition of exogenous enzymes to feed, the bacterial diversity index improved in feces.…”

Growth Performance, Nutrient Digestibility, Fecal Microbial Diversity and Volatile Fatty Acid, and Blood Biochemical Indices of Suckling Donkeys Fed Multienzyme-Supplemented Diets

“…A compound enzyme preparation is composed of one or several single enzyme preparations as the main body, mixed with other single enzyme preparations, or obtained through fermentation by one or several microorganisms. Studies have shown that adding a compound enzyme preparation to the feed can supplement the lack of endogenous enzyme secretion, effectively reduce the level of antinutritional factors in feed, improve the feed nutritional value, and promote the healthy growth of animals [3][4][5] .…”

Enzyme Complex Supplementation on the Performance of Swine in Growth and Finishing Phases

“…According to Ruiz et al (2017), carbohydrases, especially endoenzymes, release part of the molecules of fibrous carbohydrates that may be enzymatically used by the pig or its intestinal microbial population. Therefore, the carbohydrate portions released by the exogenous enzymes may be a source of energy for the animal or simply be excreted.…”