نتایج جستجو برای: hen
تعداد نتایج: 6232 فیلتر نتایج به سال:
Many astronomical sources of intense bursts of photons are also predicted to be strong emitters of gravitational waves (GWs) and high-energy neutrinos (HENs). Moreover some suspected classes, e.g., choked gamma-ray bursts, may only be identifiable via nonphoton messengers. Here we explore the reach of current and planned experiments to address this question. We derive constraints on the rate of...
In nonlaying hens or in cockerels, the administration of estrogen dramatically increases the level of plasma triglycerides (1, 2). Luskey et al. (3) have shown that one effect of estrogen was to increase the rate of synthesis of the very low density lipoproteins (VLDIJ’ proteins. The mechanism for this induction is presumably through an increase in mRNA for the yolk proteins (4-6). In a recent ...
sodium bentonite can bind to dietary pigment and decreases yolk color scale. sodium bentonite is one of the main parts of formycine® gold, the effect of different levels of formycine® gold and dietary pigment on egg quality, egg yolk color and performance criteria of laying hens from 26 to 34 week of age were studied. one hundred ninety two hy-line hens were divided into 24 groups of 8 birds ea...
an experiment was conducted to study the effects of carbon tetrachloride (ccl4) on post-peak performance and serum enzymes of hy-line w-36 laying hens from 32-36 weeks of age. the experiment was carried out with a total of 192 laying hens in a completely randomized block design. during the experiment laying hens were allocated to 4 groups consisted of t1) no ccl4 as control diet, t2, t3 and t4)...
in pancreatic survey, quantitative and morphological characteristics could be fundamental variables for the evaluation of some structures. the aim of this study was the application of stereological methods for estimation of quantitative parameters and morphological evaluation of the pancreas in chickens. ten adult male and ten adult female native chickens were used in this study. routine tissue...
background: old laying hens are more prone to dietary calcium (ca) and phosphorus (p) deficiencies as they absorb ca and p less efficiently than younger hens. objectives: in a 2×2 factorial design, the influence of diets with two levels of available phosphorus (ap) and phytase enzyme on the laying performance, egg quality and tibia bone characteristics of laying hens at their late 2nd producti...
The molecular effect of lipopolysaccharides (LPS) from porphyromonas gingivalis as well as Escherichia coli on the tyrosine protein phosphorylation in the splenic B lymphocytes from LPS-responsive C3H/HeN and LPS-hyporesponsive C3H/HeJ mice was examined. P. gingivalis LPS induced tyrosine phosphorylation of selected membrane proteins that included the phosphoproteins with apparent molecular mas...
This is a Health Evidence Network (HEN) synthesis report on private health-care funding in western Europe. Over the last 20 years the level of private spending on health care has risen in many western European countries, leading to concern about its impact. Evidence shows that private sources of health care funding are often regressive and present financial barriers to access. They contribute l...
In order to reduce extra capital and energy cost caused by fouling and ageing, this paper presents a new methodology for synthesizing heat exchanger network (HEN) with the cleaning schedule optimized. Two cleaning methods with different cleaning efficiency are used to remove fouling and ageing, so the cleaning mode has to be selected along with an optimal cleaning schedule. The process is imple...
In acute neurotoxicity of TOCP of sciatic nerve there was more neurotic changes as degenerate myelin fibers in comparsm with few changes in the spinal cord. The study was done on 2 groups of adult hen, each group consist of 20 adult hen, 20 untreated control as single dosed orally with corn oil. Treated group of 20 adult hen dosed orally with 500mg/kg TOCP in corn oil as single dose. The experi...
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