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Method for processing domestic animals fowls blood powder by extruding and puffing

A technology of extrusion puffing and processing method, applied in the fields of animal husbandry, food science, animal feed, etc., can solve the problems of not being implemented, popularized and applied, unable to provide technical solution parameters, etc., to improve product quality and production cycle. Effects of short, increased feed intake and feed rate

Inactive Publication Date: 2004-10-20
NORTHEAST AGRICULTURAL UNIVERSITY
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Problems solved by technology

In response to the above technical requirements, individual domestic feed researchers first theoretically analyzed that the main reason affecting the digestibility of blood meal and the full utilization of protein was that the blood cell membrane was not completely destroyed and the sclerostin in the blood meal was not fully denatured, and proposed to use puffed However, it failed to provide specific and effective technical solution parameters for implementing this method. So far, this method has not been implemented and promoted in production practice.

Method used

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  • Method for processing domestic animals fowls blood powder by extruding and puffing

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Embodiment Construction

[0009] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples. The fresh slaughtered blood of livestock and poultry is drawn in the slaughterhouse, and the raw blood is spread out in a cement drying pool by natural drying to dry naturally; the naturally dried blood clots are crushed into ordinary blood meal by a hammer mill for use. When it is necessary to pay equal attention to the four evaluation indicators, such as puffing index, pepsin digestibility, equipment productivity and ton of electricity consumption, the combination of extrusion and puffing parameters is selected and determined as follows: the moisture content of raw blood meal is 23±1.02%, and the spiral dry extruder The diameter of die hole 1 is 14.5±0.65 mm, and the rotational speed of screw 2 is 234.5±6.5 rpm; when only two items, such as pepsin digestibility and ton power consumption, are used as the main evaluation indicators, the com...

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Abstract

A process for extruding and puffing the powder of animal's and fows' blood in order to prepare protein feed is disclosed. Its technological parameters are 23+ / -1.02 % for water content of raw blood powder, 14.5 + / -0.65 mm for the die aperture and 234.5 + / -6.5 rpm for the screw bolt of puffing machine. Its advantages are high quality and palatability, easy digestion and no environmental pollution.

Description

technical field [0001] The invention relates to a method for preparing animal blood meal protein feed from livestock and poultry blood. Background technique [0002] At present, the most prominent contradiction in the feed industry is the lack of protein feed. For a long time, my country's protein feed for feeding mainly relies on imported fish meal, and the price of imported fish meal is becoming more and more expensive. Therefore, the development of new high-quality protein feed sources, especially animal protein feed sources, has attracted widespread attention from feed researchers. With the development of my country's intensive breeding industry, the blood resources of livestock and poultry are increasingly abundant. However, most of the blood after slaughtering of livestock and poultry in my country is discharged as waste, resulting in the loss of protein resources and aggravating environmental pollution. Therefore, to carry out research on the development and utiliza...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/24A23P30/34
Inventor 陈立何君杨悦乾马稚昱
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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