نتایج جستجو برای: bakhtiari sheep population
تعداد نتایج: 732291 فیلتر نتایج به سال:
The Effect of Spray Solution Nutrition Elements on the amount Macro Healthy and Drought Oak Trees (Quercus brantii Lindl.) in Monj Region Chaharmahal Bakhtiari Province
Objective: Various practical methods have been used for pregnancy diagnosis in sheep. Methods of pregnancy diagnosis depending on visualization of the conceptus or determination of its secretory products in the maternal blood or in the milk are the most accurate and specific methods for pregnancy. In 1980, B-mode ultrasonography was introduced in the veterinary field and used for pregnancy diag...
Background and Objectives: Brucellosis is one of the most important zoonosis diseases. The aim was to estimate the seroprevalence of brucellosis in rural cattle, sheep, and goat of Bushehr Province. Methods: This cross-sectional study was conducted in 2012-2014. For the cattle population, a total of 118 villages and 891 cattle and for sheep and goat population, a total of 202 villages, 526 flo...
ninety six pairs of adrenal glands from lori – bakhtiari sheep and goat, aged 6 month to 1 year and 1 – 1.5 year from borujen abattoir were collected. after collecting the glands and weighting them, some parameters such as: length, wide and thickness of left and right side by caliper device were measured. in histological studies, after tissue preparation and staining with h&e;, cortical zones a...
Two contrasting approaches to the analysis of population dynamics are currently popular: demographic approaches where the associations between demographic rates and statistics summarizing the population dynamics are identified; and time series approaches where the associations between population dynamics, population density, and environmental covariates are investigated. In this paper, we devel...
Ecological theory suggests that pathogens are capable of regulating or limiting host population dynamics, and this relationship has been empirically established in several settings. However, although studies of childhood diseases were integral to the development of disease ecology, few studies show population limitation by a disease affecting juveniles. Here, we present empirical evidence that ...
The adaptive nature of sociality has long been a central question in ecology and evolution. However, the relative importance of social behavior for fitness, compared to morphology and environment, remains largely unknown. We assessed the importance of sociality for fitness (lamb production and survival) in a population of mark6d bighorn sheep (Ovis canadensis) over 16 years (n = 1022 sheep-year...
Root and soil samples from commercial potato fields were assayed for nematodes in 1983 and 1984. Pratylenchus spp. population densities in Suffolk County, New York, were consistently, though not always statistically, higher in potato fields that had been planted to rye or wheat rather than potatoes during the previous growing season. Regardless of the previous crop, population densities in the ...
A health care service is a prerequisite for sustainable development. This requires access to balanced health workers in different geographic areas. The first step is to identify inequality in access to health workers in different areas. This study is a descriptive study was carried out on the cities in Chaharmahal and Bakhtiari province. TOPSIS technique was used to rank the cities in terms of ...
The aim of this study was to estimate inbreeding coefficient and its impact on wool performance in Lori-Bakhtiari sheep. In this research, wool weight records of 6234 lambs born from 273 rams and 1924 ewes were used. The data were collected at Shahrekord Sholi station during 1990-2010. In total pedigree, 1764 animals were inbred. Averages of inbreeding coefficient for total and inbred populatio...
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