Abstract: Disclosed is a piglet feed based on bacteria enzyme synergistic fermentation process. The piglet feed is composed of basic components and bacteria enzyme synergistic fermentation feed. Basic components include soybean protein concentrate, whey powder, fish meal, sodium chloride, choline chloride, stone powder, calcium hydrogen phosphate, composite vitamins, composite trace elements, and composite amino acids. The bacterial enzyme synergistic fermentation feed includes a fermentation substrate, an enzyme preparation, and a bacterial strain. The bacterial enzyme synergistic fermentation feed can not only improve the production performance of piglets, but also improve the utilization rate of feed nutrients, especially the utilization rate of feed phosphorus, thereby reducing the excretion of phosphorus in feces.

Abstract: A Yr4DS gene of Aegilops tauschii and its use thereof in stripe rust resistance breeding of Triticeae plants. Said gene has a sequence as shown in SEQ ID NO. 1, SEQ ID NO. 3, SEQ ID NO. 5, SEQ ID NO. 7, SEQ ID NO. 9, or SEQ ID NO. 10.

Abstract: A Yr4DS gene of Aegilops tauschii and its use thereof in stripe rust resistance breeding of Triticeae plants. Said gene has a sequence as shown in SEQ ID NO. 1, SEQ ID NO. 3, SEQ ID NO. 5, SEQ ID NO. 7, SEQ ID NO. 9, or SEQ ID NO.10.

Abstract: The present application discloses a method for planting and processing high-yield forage in high altitude area, and belongs to the technical field of feed preparation in a high altitude area. The planting method of the present application comprises the steps of: intercropping maize and soybeans at an altitude of more than 3000 m, and the maize varieties include Demeiya No. 1 and Demeiya No. 3, the soybean varieties include Zhongdou No. 39 and Huachun No. 6. The planting method of the present application can realize the successful planting of maize and soybeans in a high altitude area (>3000 m), and can greatly improve the biological yield.

Abstract: Disclosed herein are a duck hepatitis A virus type 3 (DHAV-3) mutant CH-P60-117C and a construction method thereof. The DHAV-3 mutant CH-P60-117C is constructed by mutating A at position 117 of 5?-UTR of the genome of the DHAV-3 virulent strain to C; mutating T at position 1142 to A to mutate tyrosine-164 of VP0 protein of the parent strain to asparagine; and mutating C at position 4334 to A so that leucine-71 of the viral protein 2C of the parent strain is mutated to isoleucine.

Abstract: Disclosed are Lactobacillus rhamnosus strain 753 and uses thereof, a silage additive and silage. Lactobacillus rhamnosus strain 753 is deposited in China General Microbiological Culture Collection Center with an accession number of CGMCC 18233. Lactobacillus rhamnosus strain 753 can improve the quality of silage in a high-temperature and high-humidity region, and the silage processed by Lactobacillus rhamnosus strain 753 has good stability and low pH, low aflatoxin B1 content and less dry matter loss. In addition, secondary fermentation can be avoided in the silage processed by Lactobacillus rhamnosus strain 753 when a silo or bale for silage is opened.