Record Details

Enriching the Nutritional Value of Agro-Industrial By-Products by Enzyme Supplementation in Poultry

KrishiKosh

View Archive Info
 
 
Field Value
 
Title Enriching the Nutritional Value of Agro-Industrial By-Products by Enzyme Supplementation in Poultry
 
Creator Ravikiran, D.
 
Contributor Devegowda, G.
 
Subject organic fertilizers, farmyard manure, nitrogen, maize, fertilizers, nutrients, yields, crops, livestock, grain
 
Description A study was conducted to estimate the non-starch polysaccharide (NSP) contents of
various poultry feed ingredients and to assess the possibility of using enzyme complexes for
enhancing the nutritive value of agro-industrial by-products in laying hen diets. NSP
estimation studies revealed that cereals were high in pentosans, oilcakes in pectins and rice
bran and sunflower cake were high in both pectins and cellulose, advocating the usage of
enzyme preparations containing xylanase, pectinase and cellulase. Biological trial with
13176 Bovans White commercial layers over the duration of 24 weeks with or without
enzyme supplementation at the level of 0.5 kg per ton proved that enzyme supplementation
essentially improved the nutritive value of the feed in commercial layers. Enzyme
supplementation reduced the feed intake by an average of 4 grams per bird per day and
improved the feed efficiency by about 5grams per egg over the entire duration of the trial,
both suggesting better nutrient utilization upon enzyme supplementation. Enzyme
supplementation also had minor desirable influence on egg production (+ 0.4%), gut
viscosity (-14.3%), litter moisture (- 9.7%), and ileal digestibility of protein (+ 12.5%) as
against the control group. The influence on egg weight and livability were not quite
prominent. Enzyme supplementation also considerably reduced the total bacterial counts
and coliform counts in the intestines of supplemented birds. It is proposed that the reduction
in digesta viscosity and the gut bacterial counts in enzyme supplemented group could have
enabled the better digestion, absorption and utilization of nutrients leading to better gut
health and improved performance.
 
Date 2016-06-21T14:12:12Z
2016-06-21T14:12:12Z
2005-07-16
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/67613
 
Language en
 
Format application/pdf
 
Publisher Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar