Recombinant DNA technology of hormones and vaccines in maximizing livestock production and productivity: A review

 

Kefyalew Alemayehu

 

Research Article | Published May 2014

International Journal of Biotechnology and Food Science, Vol. 2(4), pp. 75-81

 

 

Bahir Dar University, Department of Animal Production and Technology, P.O. Box 21 45, Bahir Dar, Ethiopia. E-mail: kefyale@gmail.com.

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Recombinant DNA technology of hormones and vaccines is in favour of generating multiple purposes in maximizing animal production and productivity. For instance, the Booroola Fecundity gene (FecB), which is found in a region of ovine chromosome 6 increases ovulation rate by 1.5 to 1.6 and one to two extra lambs. The gene responsible for the double muscling trait which is found in bovine chromosome 2 enhances muscling rates. The genetically engineered hormones such as human (HST), bovine (BST) and procine (PST) somatotropin, interferon, and lymphokines are on stage to be marketed for use in human and veterinary medicine. DNA Viruses are genetically engineered to produce vaccines against diseases. Gene-deleted vac¬cines such as salmonella vaccine for sheep and poultry, a pseudorabies virus vaccine for pigs, salmonella enterica serovar typhimurium and serovar enteritidis vaccines in poultry and streptococcus equi vaccine in horses, bovine herpesvirus-1 marker vaccine in cattle are used in disease prevention. The main challenges facing the recombinant DNA technology of hormones and vaccines are the cost of production, human health concern of genetically engineered animals as well as violating species barriers or “playing God”.

 

Keywords: DNA vaccines, hormones, productivity, recombinant DNA.

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Citation: Alemayehu K (2014). Recombinant DNA technology of hormones and vaccines in maximizing livestock production and productivity: A review. Int. J. Biotechnol. Food Sci. 2(4): 75-81.

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