نتایج جستجو برای: 15 heads four years old ewe
تعداد نتایج: 2125005 فیلتر نتایج به سال:
Introduction: Environmental tobacco smoke (ETS) exposure is a threat for health worldwide. The aim of this study was to determine the environmental tobacco smoke (ETS) exposure in people over 15 years old in Bandar Abbas, Iran. Methods: In this cross-sectional study a total of 387 subjects were selected by cluster sampling method. Data were collected by a questionnaire including demograph...
In this study, the economic coefficient of 10 traits including birth weight, 3-month weight, 6-month weight, 12-month weight, survival before 3-month, survival before 6-month, ewe survival, cumulative survival, twining percentage and fertility percentage were investigated in four different production systems with mean number 250 ewe of karakul by bio-economic model in Fars province. The obtaine...
Background and Objective: Female heads of households stand as a vulnerable group who are exposed to various psychological and social harms. The purpose of this study was to determine the mental health and coping skills of female heads of households in Birjand in 2017. Materials and Methods: This cross-sectional study incorporated 200 women (age range: 20-50 years) that were covered by the Reli...
Data of 3272 lambing records collected on 818 ewes born from 689 dams and sired by 371 rams were used in the evaluation of ewe lifetime productivity (total number born, number weaned and total weight weaned). These records were collected from ewes born from 1969 to 1994 and which gave birth during the period from 1971 to 1999. Year of birth of ewe and ewe two-tooth liveweight affected the ewe p...
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