abstractbackground: the survival rate of preterm and low-birth-weight (lbw) infants depends on various factors such as birth weight, gestational age, and quality of care. the present study aimed at evaluating the survival rate of preterm and lbw infants, predictive factors, and the risk of mortality in three training hospitals of mashhad and tabriz cities.methods: this prospective, cohort study...

This study aimed to determine the effect of probiotics lactic acid bacteria in drinking water on feed consumption, weight gain and conversion ratio broiler chickens. research is an experimental research. The animals used this were 28 male chickens strain Cobb 700 aged 20 days. P0 was not given addition probiotic bacteria, P1 Lactobacillus acidophilus 1ml/liter water, P2 casei 1ml/liter, P3 ferm...

To elucidate strain differences in the sex reversal of genetic females to phenotypic males, GSP and PNP/DO females were left ovariectomized (ovx) between one to three days after hatching, and the degree of masculinization based on sex-related characters, histological analysis of the right gonad and hormone assay were assessed at one year of age. The GSP and PNP/DO inbred lines were both derived...

The present research was undertaken to investigate the relationship between spouses’ perception of sacrificing behavior, alexithymia, and marital burnout among primary school teachers. The statistical population of the study was comprised of all primary school teachers in Amol from among whom 200 teachers were selected through random multi-stage cluster sampling method. The instruments included...

This study aimed to determine the effect of natural antibiotics in drinking water on total microbial population and performance cecum broiler chickens. The material used was 96 chickens strain CP 707 from PT Charoen Pokphand Jaya. experimental design a completely randomized (CRD) consisting 4 treatments 6 replications. Statistical analysis using variance (ANOVA) Duncan's Multiple Range Test. te...

abstract the aim of this study was to investigate the relationship between some anthropometric parameters and physiological tests (physical fitness) in amateur soccer players. the present study was descriptive-comparative carried out as a field study. the statistical population consisted of male adolescent soccer players (9-13 years old) who volunteered to participate in leisure time programs o...