3results about How to "Increase pay" patented technology

This invention discloses a selection method for meat geese that comprehensively considers feed conversion efficiency and subcutaneous fat properties, relating to the field of poultry genetics and breeding. The method includes the following steps: S1 determining feed conversion efficiency of meat geese; S2 determining subcutaneous fat properties of meat geese; S3 calculating the family mean values ​​for each trait; S4 analyzing the correlation and heritability of each trait; S5 constructing a comprehensive selection index for feed conversion efficiency and subcutaneous fat properties of meat geese; and S6 selecting breeding geese with high comprehensive selection indices. This invention utilizes individual measurements and single-cage determination of feed conversion efficiency in meat geese, establishes a three-point method for accurately measuring subcutaneous fat thickness, and constructs a comprehensive selection index for residual feed intake, subcutaneous fat percentage, and subcutaneous fat thickness. It provides a selection method that comprehensively considers feed conversion efficiency and subcutaneous fat properties in geese, simultaneously improving feed efficiency and reducing subcutaneous fat properties, achieving simultaneous selection and synergistic improvement of multiple traits, and significantly enhancing breeding efficiency.

The invention relates to the technical field of beef cattle feeding, and particularly discloses a feed additive, a preparation method thereof and application of the feed additive in beef cattle feed for improving beef quality. The beef cattle feed additive comprises fermented coix seeds, compound traditional Chinese medicine oil, amino acids, trace elements and a carrier, a preparation method of the coix seed fermented product comprises the following steps: taking 10 parts by weight of coix seed powder, fully soaking with water, steaming, adding 0.01-0.02 part by weight of lactobacillus rhamnosus and 0.001-0.003 part by weight of rhizopus powder, fermenting, drying and sterilizing to obtain the coix seed fermented product. A preparation method of the traditional Chinese medicine oil comprises the following steps: crushing 5-15 parts by weight of sanguisorba officinalis and 5-15 parts by weight of aloe, adding vegetable oil, treating in a constant temperature box at 60-90 DEG C for 36-72 hours, and filtering out medicine residues to obtain the traditional Chinese medicine oil. The carrier is formed by mixing biological wax and castor oil. The feed additive provided by the invention is used for preparing the beef cattle feed, so that the beef cattle feed reward can be obviously improved, and the beef quality is obviously improved.

The invention provides bacillus licheniformis capable of degrading aflatoxin and application of the bacillus licheniformis in fattening pig breeding. The preservation number of the bacillus licheniformis is CGMCC (China General Microbiological Culture Collection Center) NO.30148. The viable count of the screened bacillus licheniformis can still reach 108 CFU / mL after high-temperature water bath, the viable count in an acid-resistant detection test is 100%, the viable count is kept unchanged compared with the viable count before and after artificial gastric juice inoculation, and the viable count in cholate-resistant detection is 83.7%; the antibacterial activity on clostridium perfringens is the strongest, the antibacterial effect is compared by adding antibiotics and JR24B-1 groups, and it is found that the antibacterial effect is good when sampling is conducted for 24 h and is better than that of the antibiotics; the drug resistance to penicillin and lincomycin is realized; meanwhile, the screened bacillus licheniformis has the effects of strongly degrading aflatoxin and promoting growth of fattening pigs.