The present invention relates generally to a method for growth enhancement and its vaccine applicable on vertebrates, as shown in
Myostatin is a negative regulation factor of muscular tissue. As a typical example, the mutation of the genes of Myostatin once led to numerous muscular tissue of “double-muscled” Belgian blue cattle. If monoclonal antibody of an anti-Myostatin is used to blockade the activity of Myostatin in mdx mouse sample suffering from Duchenne's muscular dystrophy, muscular tissues could be increased and improved dramatically. Myostatin blockade is an attractive solution for muscular dystrophy, namely, Myostatin is currently applied to cure muscular dystrophy in the medical field.
Hence, Myostatin (MSTN; Gdf-8) is likely a major regulation factor for muscular development and growth of higher vertebrate. It is proved that “Double-muscled” Belgian blue cattle are related to the deletion, transition or transversion of protein code sequence of myostatin genes. The mutein of myostatin gene leads to rapid growth of muscle after hyperplasia and hypertrophic.
Muscle retardant is an important cell factor to control muscular development and growth. The mononucleotide polymorphism of Myostatin genes was detected by means of PCR-SSCP and DNA. And, mononucleotide polymorphism of Myostatin was also analyzed in relation to slaughtering weight, breast muscle weight, leg muscle weight, liver weight and abdominal fat weight. The results show that, P60/61 gene (AA, BB and AB) has influence upon 12-years old abdominal fat weight, abdominal fat rate, birth weight and breast muscle rate (P<0.05): abdominal fat weight of AA is much higher than BB (P<0.05); abdominal fat rate of AA and AB is much higher than BB (P<0.05); birth weight of AA is much higher than BB (P<0.05); breast muscle rate of AA is much higher than AB (P<0.05). P80/P81 gene (CC, DD and CD) is related to breast muscle weight (P<0.05) and breast muscle rate (P<0.01): there is a significant difference of breast muscle weight between CC and DD (P<0.05), of which CC has a bigger breast muscle weight; there is an extremely significant difference of breast muscle rate between CC and DD (P<0.01), and a significant difference between CC and CD (P<0.05), of which CC has a higher breast muscle rate than CD and DD, and CD has also a higher breast muscle rate than DD(P<0.05). P93/94 gene (EF and EE) is closely related to breast muscle rate (P<0.05): EF has a higher breast muscle rate than EE. It is proved that Myostatin genes are related to muscular development and growth, and more importantly involved in fat metabolism and deposit.
Therefore, the zoologists and geneticists of ARS (Agricultural Research Service) now make efforts to study an approach to increase lean beef from cattle genes. If the genes for the protein are changed or restrained, it is possible to facilitate muscular growth and reduce the fat storage. Traditionally, the animal breeders increase the lean beef through a selection plan. According to the findings of Meat Animal Center (MARC) in Nebraska, restraining myostatin protein within cattle could produce flexible and low-content saturated fatty acid.
Referring to
Thus, the present invention proposes a method and vaccine for non-genetically engineered atavism growth enhancement, in lieu of gene engineering, gene modification or utilization of antibiotics and hormone. This helps to improve the offspring's muscle growth rate and muscular mass, thus improving efficiently the meat quality and sharpening the competitive edge of livestock Industry.
Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.
Number | Date | Country | Kind |
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095122429 | Jun 2006 | TW | national |