Feed Enzymes: Source and Applications

2018 ◽  
pp. 347-358 ◽  
Author(s):  
Poonam Singh ◽  
Sanjay Kumar Yadav
Keyword(s):  
Feed Enzymes

PSIII-18 Super Dose Phytase and Carbohydrase Cocktail Enhance Ileal Nutrient and Energy Digestibility of Corn-soybean Diets in Nursery Pigs

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 176-176
Author(s):  
B V Le Thanh ◽  
J R R Bergstrom ◽  
J D Hahn ◽  
L F Wang ◽  
E Beltranena ◽  
...  
Keyword(s):  
Large Intestine ◽  
Soybean Meal ◽  
Synergistic Effects ◽  
Latin Square ◽  
Nursery Pigs ◽  
Ileal Digestibility ◽  
Degrading Enzymes ◽  
Feed Enzymes

Abstract Feed enzymes may ameliorate reduced nutrient and energy digestibility in nursery pigs. The objective was to test effects of super-dosing phytase and fiber-degrading enzymes on digestibility of DM, GE, CP, AA, and Ca. We tested supplementing a super dose (added 1,500 FYT/kg) of phytase (Ronozyme Hi-Phos) with or without carbohydrase cocktail that contained 85 FXU β-xylanase/kg, 587 U/g endo-1,4-β-glucanase, 513 U/g endo-1,3(4)-β-glucanase, 15,000 U/g hemicellulases, and 3,000 U/g pectinases in corn-soybean meal diets in a 2 × 2 factorial arrangement. Diets included 68% corn, 17% SBM, and a basal level of 500 FTU/kg of phytase, and were formulated to contain 2.50 Mcal/kg NE and 5.10 gSID Lys/Mcal NE. Eight ileal-cannulated nursery pigs (initial BW 10 kg) were fed 4 diets at 3.0 × maintenance DE (110 kcal per kg of BW0.75) for four 9-day periods in a double 4 × 4 Latin square. Apparent hindgut fermentation (AHF) was calculated as apparent total tract digestibility (ATTD) minus apparent ileal digestibility (AID). Interactions between super-dosing phytase and carbohydrase cocktail were observed. Supplementing either carbohydrase cocktail or super dose phytase, but not their combination, increased (P < 0.05) diet AID of DM, GE, CP, and most AA by 4–5%-units. Supplementing super dose phytase increased (P < 0.05) AID of P by 16%-units and ATTD of P by 10%-units. Supplementing super dose phytase or carbohydrase cocktail did not affect AID of Ca and ATTD of GE, CP, and Ca, and diet DE value. Supplementing carbohydrase cocktail without super dose phytase decreased (P < 0.05) diet AHF of DM, GE, and CP. In conclusion, dietary inclusion of super dose phytase or carbohydrase cocktail increased ileal digestibility of nutrients in nursery pigs, and thereby reduced protein entering the large intestine. Additive or synergistic effects of carbohydrase cocktail and super dose phytase were not detected.

scholarly journals Method of Analysis for Feed Enzymes: Methodological Problems?

1996 ◽  
Vol 5 (4) ◽  
pp. 408-413 ◽  
Author(s):  
Alain M. Sabatier ◽  
Neville M. Fish
Keyword(s):  
Methodological Problems ◽  
Feed Enzymes

Ruminants and feed enzymes

1996 ◽  
Vol 1996 ◽  
pp. 15-15
Author(s):  
R.J. Treacher
Keyword(s):  
Nutritional Value ◽  
Fibrolytic Enzymes ◽  
Rumen Microbes ◽  
Feed Enzymes ◽  
Nutritional Compounds ◽  
Sugar Levels

Enzymes have been successfully used to improve the nutritional value of cereal based feeds for pigs and poultry since the early eighties. Their benefits derive from improved digestion of nutrients following the destruction of anti-nutritional compounds such as β-glucans and arabinoxylans and the augmentation of the animal's existing enzyme arsenal where this may be sub-optimal. In the ruminant sphere fibrolytic enzymes have been used as aids to silage preservation for almost as long. Their action here is to enhance natural sugar levels by the breakdown of structural carbohydrates - an action which can concurrently render the fibre more amenable to digestion by rumen microbes.

Effects of diet composition, feed enzymes and method of cannulation on faecal and ileal digestibility measurements in growing pigs

1996 ◽  
Vol 1996 ◽  
pp. 151-151
Author(s):  
K J McCracken ◽  
Y-L Yin ◽  
J McEvoy ◽  
H Schulze
Keyword(s):  
Diet Composition ◽  
Enzyme Preparation ◽  
Growing Pigs ◽  
Fibre Content ◽  
Ileal Digestibility ◽  
Commercial Practice ◽  
Young Pigs ◽  
Feed Enzymes

Whereas feed enzymes containing (β-glucanase give good responses in broilers and young pigs those in older pigs have been variable (Campbell and Belford, 1992). In commercial practice, bushel weight is frequently used as an indicator of quality. There are a range of methods for determining ileal digestibility of diets each of which has limitations (Fuller, 1991). Previously in our laboratory the 'T' cannula (T) method has been used, but the post-valve 'T' caecal (PVTC) cannulation method (van Leeuwen et al, 1991) appears to have a number of advantages. The twin objectives of this study were to study the effects of a feed enzyme preparation in two sources of barley of different bushel weight and to compare the T and PVTC methods with diets of differing fibre content.

scholarly journals Novel combination of feed enzymes to improve the degradation of Chlorella vulgaris recalcitrant cell wall

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Diogo Coelho ◽  
Paula A. Lopes ◽  
Vânia Cardoso ◽  
Patrícia Ponte ◽  
Joana Brás ◽  
...  
Keyword(s):  
Cell Wall ◽  
Chlorella Vulgaris ◽  
Feed Enzymes

Screening of fibrolytic enzymes as additives for ruminant diets: relationship between enzyme activities and the in vitro degradation of enzyme-treated forages

2002 ◽  
Vol 2002 ◽  
pp. 210-210 ◽  
Author(s):  
D. Colombatto ◽  
D.P. Morgavi ◽  
A.F. Furtado ◽  
K.A. Beauchemin
Keyword(s):  
Enzyme Activities ◽  
Biochemical Properties ◽  
Ruminal Fermentation ◽  
Maize Silage ◽  
In Vitro Degradation ◽  
Enzyme Preparations ◽  
Commercial Enzyme ◽  
Ruminant Diets ◽  
Feed Enzymes

Results in the literature concerning the efficacy of feed enzymes for ruminant diets have been mixed. Commercial preparations currently used are fermentation extracts containing several enzymic activities. It has been suggested that ruminal fermentation of grass and maize silages is enzyme-limited (Wallace et al., 2001). In order to design better enzyme additives, the enzyme activities likely to affect the animal responses should be identified. This study examined 23 commercial enzyme preparations for their biochemical properties and their ability to influence the in vitro degradation of alfalfa and maize silage.

The use of different xylanase sources and a protease in wheat-based diets for weaner pigs

1996 ◽  
Vol 1996 ◽  
pp. 154-154 ◽  
Author(s):  
H. Schulze ◽  
G. G. Partridge ◽  
B. P. Gill
Keyword(s):  
Animal Species ◽  
Enzyme Treatment ◽  
Activity Levels ◽  
Trichoderma Spp ◽  
Wall Structures ◽  
Feed Enzymes ◽  
Growth Trial ◽  
Weaner Pigs ◽  
Antinutritive Factors ◽  
Endogenous Enzymes

There is much current interest in the potential of suitable in-feed enzymes to improve digestibility and productive performance in pigs. However, in order to improve the nutritional value of feed by enzyme supplementation it is important to match enzyme characteristics to both the substrates present and the animal species concerned. The main antinutritive factors in wheat are arabinoxylans and they comprise over 50% of the total NSP's in the whole grain. Since monogastric animals do not possess the endogenous enzymes to break down the cell wall structures of wheat, which consist mainly of arabinoxylans, the addition of xylan degrading enzymes should be considered. Therefore, a growth trial in weaner pigs was conducted to evaluate the effect of supplementing a pelleted wheat/soya - based diet with two different xylanase sources (Trichoderma spp.), provided at the same activity levels in a premix (xyl#l and xyl#2). A third enzyme treatment incorporated the same level of xyl#l in conjunction with a protease (pro) obtained from Bacillus subtilis.

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