Alternative protein sources in the nutrition of farm animals
نویسندگان
چکیده
منابع مشابه
Nutrition in the reproduction of farm animals.
There is still uncertainty about the earliest stage of development at which nutrition influences an animal's subsequent ability to achieve its genetic potential for reproduction. Prenatal growth retardation caused by feeding ewes on a ration as low as 0.5 times maintenance during early pregnancy had no subsequent detrimental effect on either the natural or gonadotrophin-stimulated ovulation rat...
متن کاملMolecular Markers for Fertility in Farm Animals
A genetic marker is a gene or DNA sequence with known localization on a chromosome. It can be de-scribed as a variation that can be measured or detected by a suitable method, and can be used subsequently to detect the presence of a specific genotype. Such variations occurring at chromosomal or DNA level can serve as genetic markers. The progress in development of molecular markers suggests thei...
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هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...
Induced Termination of Pregnancy in Domestic Farm Animals
Induced abortion may be desired during a normal or abnormal pregnancy. The methods of induced abortion differ between species mainly because of different sources for progesterone production during pregnancy between species and within a species according to different stages of gestation. In cows and buffaloes, pregnancy can be effectively terminated from 5 to 150 days by administration of luteol...
متن کاملProtein Sources in Ruminant Nutrition
Since 2001 the European Commission banned the use of meat and bone meal and its byproducts in diets for livestock animals (EC directive 999/2001) in order to assure consumer safety on animal products. Consequently, soybean meal became the most utilised protein source in the intensive livestock systems. Moreover, the proteins of this source are low degradable in the rumen and well proportioned t...
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ژورنال
عنوان ژورنال: The Arab Journal of Scientific Research
سال: 2019
ISSN: 2537-0375
DOI: 10.21608/ajsr.2019.171735