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Production method and use effect of biological feed capable of improving meat quality

A technology of biological feed and feed, applied in the direction of animal feed, animal feed, application, etc., can solve the problems of increasing fiber content and complex fiber composition.

Pending Publication Date: 2020-08-11
HENGYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during processing, a significant portion of the plant cell wall components remain in these non-grain feed resources, thereby significantly increasing their fiber content and making the fiber composition more complex

Method used

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  • Production method and use effect of biological feed capable of improving meat quality
  • Production method and use effect of biological feed capable of improving meat quality
  • Production method and use effect of biological feed capable of improving meat quality

Examples

Experimental program
Comparison scheme
Effect test

Embodiment ( 1

[0020] 1 Materials and methods

[0021] 1.1 Activation of bacteria and preparation of fermentation medium

[0022] Mortierella chrysogenum M.isabellina As 3.3410 was purchased from China General Microorganism Culture Collection Center, and Aspergillus niger was provided by the School of Life Science and Environment, Hengyang Normal University. Aspergillus niger or Mortierella chrysogenum (M.isabellina As3.3410) After activation on potato agar slant medium at 28°C for 7 days, a single colony was inoculated into potato liquid seed medium, and cultured on a shaker at 28°C and 180r / min for 2 days. The spore liquid of Aspergillus niger or Mortierella chrysogenum in the logarithmic growth phase that was cultured for 2 days was filtered with eight layers of sterile gauze to obtain a spore suspension. DDGS is a by-product of beer production by fermenting wheat and rice with Saccharomyces cerevisiae, donated by Hengyang Yanjing Brewery. Crush DDGS through a 40-mesh sieve, add appropr...

Embodiment ( 2

[0032] 1 Selection and feeding management of experimental animals

[0033] 48 30-day-old Xianghuang chickens of the same age and breed were selected as experimental animals. The experimental chicken house was located in the animal room of Hengyang Normal University, with natural ventilation and sufficient light. Experimental Xianghuang chickens were reared in three-dimensional single cages, fed once a day in the morning and evening, and had unlimited drinking water. Sanitation and disinfection are carried out on time every day. Feces and urine were collected daily and the health of the flock was observed.

[0034] 2 Experimental design

[0035] 2.1 Diets and animals

[0036]This experiment was divided into a control group and an experimental group, with 12 replicates in each group and 4 chickens in each replicate. Group A was fed a basic diet (see Table 1), group B was fed a basic diet plus 20% brewer's grains, and group C was fed a basic diet plus 20% fermented brewer's g...

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Abstract

The invention discloses a production method and a use effect of a biological feed capable of improving meat quality. In order to reduce the crude fiber content of DDGS and increase the crude fat content of DDGS, the feed is prepared by taking DDGS as a substrate through semi-solid fermentation of aspergillus niger and mortierella chrysosporium. Optimal proportions of fermentation conditions such as fermentation strains, inoculation proportion (2.5-20%), water-solid ratio (0-2%), fermentation time (1-6d), fermentation temperature (22-34 DEG C), ammonium sulfate concentration (0.2-1.0%), molasses concentration (2-10%) and the like are optimized according to a single-factor test scheme. After the fermented DDGS is applied to a Xianghuang chicken feed, compared with an unfermented group, the addition of the fermented DDGS remarkably reduces the pH value and drip loss of pectoralis while maintaining the original production performance. The meat quality of the Xianghuang chicken is obviouslyimproved due to the addition of the biological feed.

Description

technical field [0001] The invention relates to the field of biological feed production capable of improving meat quality, in particular to the production of biological feed that improves the nutritional value of brewer's grains through microbial fermentation, and belongs to the technical field of feed. Background technique [0002] At present, the most widely used non-grain feed resources mainly include grain by-products and miscellaneous meal. The grain by-products mainly include corn DDGS, corn germ meal, corn gluten feed (corn by-products); rice bran, broken rice (rice by-products); wheat bran, fine wheat bran, flour (wheat by-products), etc. Miscellaneous meal mainly includes rapeseed meal, cotton meal, peanut meal, sunflower meal, linseed meal, palm meal and so on. Cereal by-products are new raw materials between energy feed and fiber feed, miscellaneous meal is a protein raw material that can replace part of soybean meal. In order to save costs, in actual production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/75A23K10/38A23K10/12
CPCA23K50/75A23K10/38A23K10/12Y02P60/87
Inventor 杨灿唐小武
Owner HENGYANG NORMAL UNIV
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