Heat-processed bovine blood–rumen digesta meal and vegetable oil concentrate as partial replacement for soybean meal in broiler finisher diet
نویسندگان
چکیده
Context Blood and rumen contents, which are currently considered wastes in many abattoirs, could be valuable ingredients poultry feeding; however, several factors including high fibre low energy may limit their dietary inclusion. There is need for more research on feed processing diet formulation to maximise utilisation of these by-products feeding. Aim We investigated the effect broiler finisher performance feeding bovine blood, digesta vegetable oil concentrate as a partial replacement soybean meal. Methods Three isonitrogenous isocaloric diets were formulated: control based maize meal, two test diets. In diets, heat-processed blood–rumen meal replaced 50% with without exogenous enzymes. Diets allocated five replicate pens containing six Ross broilers aged 21 days completely randomised design period days. Key results Results showed no treatment (P > 0.05) average daily intake but birds fed gained weight < converted efficiently than group. Enzyme supplementation had additional growth performance. effects relative weights carcass gut segments. Feed cost liveweight gain was reduced Conclusion Heat-processed can replace up fishier At this level replacement, enzyme not required. Implications The use blood content has environmental benefits.
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ژورنال
عنوان ژورنال: Animal Production Science
سال: 2022
ISSN: ['1836-5787', '1836-0939']
DOI: https://doi.org/10.1071/an22159