the booroola fecundity gene (fecb) and growth differentiation factor 9 (gdf9) gene belong to the transforming growth factor β (tgf-β) superfamily. the mutations of these genes have additive effects on the prolificacy in sheep. the aim of the present study was to determine the possible mutations of fecb and fecgh genes in lory sheep breed of the lorestan province, iran. sixty blood samples were ...

ly considered from such construction; and which doth accompany it though otherwise constructed than is supposed.7 Wallis thus saw geometrical knowledge as more concerned with construction-invariant features of geometrical figures than with features deriving from their construction. In addition, he saw algebraic 5. Idem, p. 230 6. Knowing via minimal or simplest cause would have been better stil...

ABSTRACT: Sheep production is expanding among small farmers in Southern Uruguay. Currently, Corriedale and Milchschaf are being used, but not Highlander. However, there lack of experimental information regarding the relative performance these breeds. We conducted an experiment where three sheep breeds were run together at Regional Centre, located region question. Wool, body, reproductive lamb g...

the aim of this study includes investigation into the impact of education based on gardner’s theory of multiple intelligences (mi) on educational achievement of high school students (grade ii) in mathematics from garmsar city. the current study is of applied type in terms of nature since research is seeking for testing of some theoretical concepts in real and live situations. whereas the presen...

background: this study aimed at investigating the prevalence and risk factors of bovine thelaziosis, performed in the southeast of iran, an endemic area for iranian sistani cattle. methods: between september 2012 to october 2014, 1924 cattle, sistani breed (n= 1235) and brahman breed (n=689) of all sex and age groups collected from sistan and baluchestan province were examined using visual obse...

black forest horses are typically chestnut colored with flaxen mane and tail. however, as their coat color can get very dark, they are sometimes also indicated as silver, a color depending on a black base color. to analyse if the silver allele is present in the black forest horse population, we genotyped 250 horses of this breed for formerly reported coat color mutations within mc1r and silv. a...

Oxygen is one of the critical determinants for normal embryonic and fetal development. In avian embryos, lack of oxygen will lead to high fetal mortality, heteroplasia, and cardiovascular dysfunction. Tibetan chicken is a breed native to Tibet that could survive and keep higher hatchability regardless of negative effects of hypoxia. Generally, adaptive animals in high altitudes are characterize...

This study was conducted to evaluate maternal breed effects, direct breed effects, and individual heterosis on subsequent steer performance, carcass, and feed efficiency traits. This was a consecutive 2-yr trial using 158 steers. The same dam breeds, Angus (AN) and purebred Simmental (SM), were used both years. Also, the same AN and SM sires (n=11) were used both years. Steers were AN, SM, or A...

Leptin (LEP), the expression product of the obese gene produced primarily in the adipose tissue, is related to feed intake, growth and lipid metabolism. The aim of this study was to study the possible association between polymorphism of the LEP gene with growth and carcass traits among three Iranian sheep breeds of the Shal, Zandi and Zel varieties. A total of 180 purebred animals of the Shal, ...