Ibrahim  A. Mostafa, 
    Impact of Some Factors on Profitability of Sheep Farms under Egyptian Conditions,
    Journal of Animal and Veterinary Advances,
    Volume 18,Issue 8,
    2019,
    Pages 256-259,
    ISSN 1680-5593,
    javaa.2019.256.259,
    (https://makhillpublications.co/view-article.php?doi=javaa.2019.256.259)
    Abstract: The aim of this study is economic evaluation and investigation of some factors effect as season,
demo-graphic characters (manager characters) and some productive and reproductive disorders in sheep
production farms under Egyptian conditions. Data were randomly collected from commercial sheep farms from
different localities in Menofia governorate that located in South of Nile delta in Egypt. The data include season
that grouped to (cold season) extended from 21 September-20 March and (warm season) from 21 March-20
September to determine its effect on birth weight, litter size and kidding interval. The data were collected
summarized and analyzed by statistical computer program (SPSS/PC, 16).
    Keywords: Sheep production farms;manager characters;economic losses;manager characters;educatinallevel;production change