Youssef Hussein Hafez
Affiliation Animal Production Research Institute (APRI)
Department Sheep and Goat Research Department
Research Field Animal and Poultry Science(Animal Husbandry)
Agrovoc Animal husbandry - Goats - Sheep
Contacts
Work Telephones 0237600598
0233371994
0130912787
Fax 0237600598
Degree PHD, Egypt, El zaqaziq in [2000]
Scientific Progress
Researcher in Animal Production Research Institute (APRI) [21/02/2008]
Assistant Researcher in Animal Production Research Institute (APRI) [15/09/2001]
Publications
Journal:
 - Impact of non-conventional energy sources in ration on produtive and reprodutive performance of ewes (2015)
- Productive and reproductive performance of ewes and growth rate of lambs as affected by non-conventional energy supplement to rations (2015)
- Effect feeding of supplemented ration with algae on milk yield and its composition for Damascus goats (2015)
- Milk yield and composition of dairy zaraibi goats fed microbial inoculated corn silage (2013)
- Supplementing non-conventional energy sources to rations for improving production and reproduction performances of dairy zaraibi nanny goats (2013)
- Effect of algae supplementation on growth performance and carcass characteristics of 9rowing male lambs. (2013)
- Milk yield and composition of dairy Zaraibi goats fed microbial inoculated corn silage (2012)
- Effect of microbial inoculation of whole plant corn silage on growth performance and carcass characteristics of Rahmani lambs (2012)
- Nutritional evaluation of a fungal-yeast probiotic fortified with natural antioxidants on performance of sheep. 3- impact on body temperature, internal antioxidants, hematoligical and histopathological changes of local sheep raised under different climatic conditions (2012)
- Effect of yeast culture on growth performance and carcass characteristics of Damascus kids (2011)
- Nutritional evaluation of a fungal-yeast probiotic fortified with natural antioxidants on performance of sheep. 1-nutrients digestibilities, dietary nitrogen utilization, rumen fermentation and changes of blood biochemical constituents (2011)
- Nutritional evaluation of a fungal yeast probiotic fortified with natural antioxidants on performance of sheep. 2- body weight gain, feed conversion efficiency, carcass characteristics and body composition of two local breeds of sheep raised under two different climatic conditions (2011)
- Effect of energy flushing pre-mating and during mating season on production and reproduction performance of Zaraibi goats (2011)
- Effect of modifyng roughage /concentrate ratio on semen quality and fertility as affected by exhaustive ejaculation in zaraibi billy goats (2010)
- Effect of additives on growing lambs fed on different levels of roughage concentrate ratio. 1- Lambs performance and carcass characteristics (2007)
Master Thesis:
 - Effect of dietary ammonium chloride and vitamin A on urolithiasis in sheep fed high concentrate ration. (1999)
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