نتایج جستجو برای: animal growth promoters

تعداد نتایج: 1023060  

Journal: :Chemical and Pharmaceutical Bulletin 1986

Journal: :Science letters 2022

Nanotechnology is considered the most exponential technology in veterinary sciences, especially animal breeding. It has also worked wonders providing good habitual conditions and a properly livable environment for animals supported by hygiene proper maintenance of feed. The achievements nanotechnology every field are surprisingly amazing but its lead livestock pre-eminent. facilitating science ...

A. Derakhshanfar H. Tavakkoli S. Salandari

Chukar partridge raising is a profitable business. New feed additives of plant origin may be an alternative to antibiotic growth promoters. This study was carried out to determine the effect of different levels of Pistacia atlantica oil on performance and pathological conditions in chukar partridge. One-day-old chukar partridge chicks were assigned to three dietary treatments of 40 birds each. ...

Journal: :پژوهش های علوم دامی ایران 0
مصعب احمدی محمد امیر کریمی ترشیزی

introduction: the poultry industry has a crucial role in production of nutritious food for human consumption. good quality feeds and rational nutrition are essential preconditions for obtain high producing healthy animals and economic prosperity in a flock. antibiotics are worldwide used so far in animal husbandry to improve animal products, but nowadays the application of antibiotics as feed a...

Journal: :The Journal of biological chemistry 1977
J Pan M L Celma S M Weissman

VA-RNA I is one of the very few RNA species produced in animal cells whose transcriptional initiation site is known precisely. We have analyzed the nucleotide sequence of the DNA preceding the 5' end of VA-RNA I and compared it with known prokaryotic promoters and presumptive eukaryotic promoters.

2015
Delphine L. Caly Romain D'Inca Eric Auclair Djamel Drider

Since the 2006 European ban on the use of antibiotics as growth promoters in animal feed, numerous studies have been published describing alternative strategies to prevent diseases in animals. A particular focus has been on prevention of necrotic enteritis in poultry caused by Clostridium perfringens by the use of microbes or microbe-derived products. Microbes produce a plethora of molecules wi...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1986
N Benvenisty L Reshef

A method of introducing actively expressed genes into intact mammals is described. DNA precipitated with calcium phosphate has been injected intraperitoneally into newborn rats. The injected genes have been taken up and expressed by the animal tissues. To examine the generality of the method we have injected newborn rats with the chloramphenicol acetyltransferase prokaryotic gene fused with var...

2008
A. Kroismayr K. Schedle J. Sehm C. Plitzner H. Foissy T. Ettle H. Mayer

As a result of antibiotic resistance in human pathogenic bacteria, alternatives for Antibiotic Growth Promoters (AGP) have been developed in recent years. Herbs and botanicals can be seen as such an alternative (WENK, 2003). Essential oils derived from different plants have been tested over the years to identify their effects on animal performance. Essential oil extracts from Oregano, with its ...

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