-
公开(公告)号：US20220087209A1
公开(公告)日：2022-03-24
申请号：US17418694
申请日：2019-11-07
发明人： Liguo YANG , Guohua HUA , Kaifeng NIU , Hongxue SHEN , Lifeng SHI , Dianshuang ZHANG
摘要： The invention discloses a cattle shed, comprising a cattle bedding, a feeding channel, a fixed roof, a movable roof, a feeding trough, a peripheral rail fence, and a rail fence gate, wherein the cattle bedding is provided with no dividers and needs no hardening and daily manure cleaning, which is merged with playground and enclosed. The feeding channel is hardened and higher than the cattle bedding, the fixed roof and the movable roof cover the cattle bedding and the feeding trough, the peripheral rail fence and the rail fence gate surround the cattle bedding and the feeding trough, and the fixed roof and the movable roof are arranged in a slope mode, and the movable roof can be opened to allow sunlight to enter and exchange air to form convection. The cattle shed of the present invention can reduce the construction cost, open the movable roof, effectively utilize the sunlight and the air convection, ensure a complete rain-sewage separation, and realize zero discharge of manure and sewage.
-
公开(公告)号：US20210085766A1
公开(公告)日：2021-03-25
申请号：US17025486
申请日：2020-09-18
发明人： Liguo YANG , Jiaomei TANG , Qunli ZHOU , Aixin LIANG , Aizhen GUO
IPC分类号： A61K39/00 , C07K14/575
摘要： The invention provides an AMH-INH-GNIH tri-expression gene vaccine capable of improving fecundity of animals and a preparation method of engineering strain thereof. The engineering strain was deposited in China Center for Type Culture Collection on Aug. 15, 2018, with deposit No.: CCTCC NO:M 2018544. When the engineering strain is used for direct immunization of animals or immunization of animals after being mixed with DNA vaccine adjuvant, the fecundity of the animals can be effectively improved. The tri-expression gene is a tri-expression non-resistant DNA plasmid of Mullerian duct resisting hormone, inhibin and gonadotropin release restraining hormone, which can be used for direct immunization of the animals through mucosa immunization to generate antibodies in the manner of being sprayed to noses, orally administered, blended into feeds and the like. Since the gene vaccine does not contain a resistant gene, exogenous antibiotics do not need to be introduced for screening, and antibiotic residues are not generated. Compared with other gene vaccines which need plasmid extraction and purification, high production cost and inconvenient intramuscular injection, and enable the animals to generate stress response, the gene vaccine of the invention is lower in production cost and more convenient to use, and is free from resistance and injection stress response.
-
搜索结果
2 条记录 (耗时 0.014 秒)