in this research, 6517 records, collected by khojir sheep breeding station (tehran, iran), during 1991 to 2011 were used to estimate genetic parameters of lamb survival in zandi sheep. genetic parameters were estimated using 16 different models of animal model, sire and threshold models using reml procedures. the aic criterion was used to evaluate the models. the effects in the most suitable an...

this study was conducted to investigate effect of different sources of copper on gas production parameters and nutrients digestibility in zandi male lambs. in the first experiment, 18 male lambs (initial body weight 17.53±1.62) divided into three groups and fed one of the three experimental diets for 70 days. dietary treatments were control (basal diet without copper supplement), basal diet plu...

the aim followed in the present study was to evaluate the effect of estradiol (e2) injection and injection (either intramuscular (i.m) or intravenous (i.v)) of various doses of oxytocin (ot) on cervix dilation and on conception rate in zandi ewes during late breeding season. sixty three ewes were randomly selected. in experiment 1, the ewes received 100 µl e2 and 12h later were divided and assi...

Barry et al reported four cases of anti-N-methyl-D-aspartate (NMDA) receptor antibody encephalitis that presented psychiatrically. This report was welcome in highlighting the importance of immunologically mediated encephalitides (or synaptopthies), both primary autoimmune and paraneoplastic, that has emerged over recent years. However, two points are worthy of emphasis. First, the aetiological ...

OBJECTIVE The effects of dietary fish oil on semen quality and sperm fatty acid profiles during consumption of n-3 fatty acids as well as the persistency of fatty acids in ram's sperm after removing dietary oil from the diet were investigated. MATERIALS AND METHODS In this experimental study, we randomly assigned 9 Zandi rams to two groups (isoenergetic and isonitrogenous diets): control (CTR...

Barry et al reported four cases of anti-N-methyl-D-aspartate (NMDA) receptor antibody encephalitis that presented psychiatrically. This report was welcome in highlighting the importance of immunologically mediated encephalitides (or synaptopthies), both primary autoimmune and paraneoplastic, that has emerged over recent years. However, two points are worthy of emphasis. First, the aetiological ...

Reclamation of Arid LandsIt is our pleasure to inform you that Springer International Publisher (2017) has published a book entitled "Reclamation of Arid Lands" in English.This book is the result of joint collaboration between the University of Tehran, University of Kashan and Research Institute of Forests and Rangelands, whose authors are as follows:Mohammad Jafari: Professor, Faculty of Natur...

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myostatin (mstn), also known as growth and differentiation factor-8 (gdf8), is a member of the transforming growth factor beta (tgf-?) superfamily that decreases growth in mammals. a single nucleotide polymorphism (snp) in the myostatin (gdf8) 3'utr of oar2 has been known as responsible for muscular hypertrophy in foreign breeds. in this study, in order to identify single nucleotide polymo...