نتایج جستجو برای: towelve calves of 4
تعداد نتایج: 21328578 فیلتر نتایج به سال:
چکیده: بررسی مقایسه ای گونه های مختلف مالاسزیا در پوست و گوش گوساله های نوزاد با مادرانشان با استفاده از روشهای مورفولوژیکی، بیوشیمیایی و فیزیولوژیکی مخمرهای لیپوفیلیک جنس مالاسزیا جزء فلور نرمال جلدی انسان و حیوانات می باشند که تحت شرایطی بیماریزا می شوند. از آنجایی که نه تنها گونه غیر وابسته به چربی بلکه سایر گونه های مالاسزیا از حیوانات مختلف جداسازی می شود لذا بررسی اپیدمیولوژی و انتشار ج...
towelve calves of 4-10 months old with clinical signs suspected to bovine viral diarrhea virus (bvdv) infection were selected for this study. histopathologic sections were performed on formalin fixed paraffin-embded ear notch biopsies, mounted on poly-l-lysine coated slides and stained for bvdv by anti-bvdv monoclonal antibody labelled with fluorescein isothiocyanate. stained sections were exam...
In order to estimate the mean of maternal antibody in calves against BHV-1 (Bovine Herpes virus type 1), this study was carried out in a population of calves from non-vaccinated dairy cattle at 2 livestock in Qazvin province. One hundred thirteen sera out of 512 were collected from 1-4 months unvaccinated calves. We used Blocking –Percentage of maternal antibodies against BHV-1, which obtained ...
The objective of this study was to determine the effects of different levels of garlic powder (GP) in the starter diet on performance, weight and age of weaning, some of blood metabolites, fecal score, structural growth and nutrients digestibility in new-born Holstein calves. Thirty male and femal dairy calves (40.9 ± 1.9 Kg of BW) were randomly assigned in a completely randomized design to the...
The aim of this study was to evaluate the effect of inclusion of tannic acid on some performance traits and nutrient digestibility in Holstein dairy calves. A total of 20 seven days old Holstein calves were randomly assigned to 4 experimental treatments with 5 calves each. The treatments were as follows: 1) basal diet formulated to meet all nutritional requirement of calves according to NRC (20...
in order to survey the inclusion effects of different levels of barley and/or corn grain in diet on growth and performance of holstein calves 40 newborn calves were taken in 5 experimental groups with 4 female and 4 male calves in each group for a duration of105 days. the experimental group was comprised of: group 1; no barley (only consisting of corn grain) and other experimental groups 2, 3, ...
in order to estimate the mean of maternal antibody in calves against bhv-1 (bovine herpes virus type 1), this study was carried out in a population of calves from non-vaccinated dairy cattle at 2 livestock in qazvin province. one hundred thirteen sera out of 512 were collected from 1-4 months unvaccinated calves. we used blocking –percentage of maternal antibodies against bhv-1, which obtained ...
idiarrhea is known as the current and economic disease among new born calves. it is characterized by dehydration, loss of macro-minerals, weakness, recumbency and death. in calves diarrhea with different etiology, loss of liquid and electrolytes are the principle signs and the cause of death too. therefore, determination of the amounts of liquid and mainly electrolytes depletion is important in...
background: cryptosporidium parvum is a protozoan parasite which belongs to apicomplexa phylum. the parasite infects both wild and domesticated animals and human beings as well. objectives: the purpose of the present study was to detect oocyst shedding and diarrhea pattern in experimental cryptosporidiosis and their correlation with weight loss in neonatal calves. methods: twelve holstein calve...
In this study, the effect of chamomile extract on the ability of neonatal calves to absorb immunoglobulin G (IgG) was evaluated. An ethanolic extract of chamomile was obtained with the concentration of 111 mg/ml. Calves were randomly divided into four groups, each receiving one of four chamomile treatments; 1: low dose (LC; 5.5 mg/kg body weight; 2: moderate dose (MC; 11 mg/kg); 3: high dose (H...
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