Modification of performance traits, Biology

Assignment Help:

Modification of performance traits

Modifications to livestock that could influence traits such as growth rate, feed efficiency and meat quality are major goals for livestock breeding in agriculture. Mice in which the myostatin gene has been knocked out have considerably more skeletal muscle than wild type controls. The double-muscle phenotype of some breeds of cattle is caused by natural mutations of this gene and these are widely bred in Europe for improved meat quality. Knockout of this gene in sheep or pigs could produce animals with increased skeletal muscle mass and improved meat quality, although there are clearly major ethical issues relating to animal welfare that would have to be considered if these types of animal were generated.

Other areas of transgenic applications in animal agriculture include modifying milk composition to increase milk proteins, to decrease milk fat or to change milk composition to provide a source of milk for lactose-intolerant individuals or to provide a source of milk that is more efficiently processed into cheese. An area that definitely needs more exploration is the use of the chicken oviduct as a bioreactor. This approach has numerous advantages over the transgenic mammary gland. To name a few, the ease of collecting the product, short generation times, quantity, safety and low costs are unmatched by the traditional approach of transgenic milk. However, this system is still in its infancy because micromanipulation of the chicken embryo is very difficult, and transgenic chickens are often mosaics. It is also possible that the best protein expression levels will be obtained when multiple copies of transgene integrate into a particular favourable chromosomal locus. Cloning will greatly reduce timeliness to get therapeutic products to the market by producing large number of genetically identical transgenic livestock animals in the first generation.


Related Discussions:- Modification of performance traits

Phylum ciliophora - protozoan, Phylum Ciliophora - Protozoan Simple ci...

Phylum Ciliophora - Protozoan Simple cilia or compound ciliary organelles typical in at least one stage of life cycle; subpellicular cilia present even if surface cilia are ab

Pattern of limb development, Pattern of Limb Development The first vi...

Pattern of Limb Development The first visible sign of limb development is the appearance of ridge or thickening on each lateral side of the embryo of amniotes. The ridge call

What are some prophylactic measures for tapeworm infections, Q. What are so...

Q. What are some prophylactic measures for tapeworm infections? The major prophylactic measures against the taeniasis and the cysticercosis are not to ingest raw or badly cooke

Evolution of photosynthesis and aerobic respiration, Evolution of Photosynt...

Evolution of Photosynthesis and Aerobic Respiration It is assumed that the earlier form of the bacteria utilised H 2 S for the preparation of food. The following reaction shows

Dictyosomes, Dictyosomes  are produced on the Organelles in the plant cells...

Dictyosomes  are produced on the Organelles in the plant cells composed of the series of flattened membrane sacs which sort, chemically modify, and package protein srough endoplasm

Describe imz implant system, Q. Describe IMZ Implant System? Then came ...

Q. Describe IMZ Implant System? Then came the IMZ Implant System (Interpore IMZ) in 1974. The major difference between the IMZ System and all other relevant implant systems is

What is predatism, Q. What is predatism? The Predatism is the ecologica...

Q. What is predatism? The Predatism is the ecological interaction in which one individual kills or mutilates another to get food. The Predatism is an inharmonious (negative) ec

Determine the enzymes utilization in food industry, Enzymes utilization in ...

Enzymes utilization in food industry  Enzymes may be used in industry as components of living cells or after isolation in free or immobilized forms. All of them may be referred

Sensitive/critical periods: windows of enhanced plasticity, There are speci...

There are specific sensitive/critical periods in development during which acquisition of certain skills is substantially easier than at other times. In the animal domain there are

Differentiate between sterilization and disinfection, Q. Differentiate betw...

Q. Differentiate between sterilization and disinfection? Sterilization is defined as freeing the object or substance from all life of any kind. It is the process by which an ar

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd