scholarly journals Study of effect of immunosuppresion caused by H9N2 in broiler

2008 ◽  
Vol 32 (2) ◽  
pp. 80-89
Author(s):  
Aida Bara Allawe

This study was concerned with conduction of experiment for thesereason three groups of broiler chicks were used.First group (which consisted of 15 chicks) was vaccinated with liveattenuated vaccine (laSota strain) at age 10, 20, 30 days by drinkingwater. Second group (which consisted of 15 chicks) was infectedexperimentally with H9N2 (AMR.ANT/IRAQ/2005) 108.6 LD50/0.1mlat age 8 day then vaccinated with live attenuated vaccine (LaSota strain)at age 10, 20, 30 days by drinking water .third group (which consisted of10 chicks) was considered as a control group without vaccination.Immune response in all chicks groups were estimated at age (40) daysdepending on Heamagglutination test and ELISA. The first group showedhighest titer in HI and ELISA tests in comparison with second and thirdgroups.

2021 ◽  
Vol 14 (1) ◽  
pp. 92-96
Author(s):  
Kornkamon Hanchai ◽  
Tassanee Trairatapiwan ◽  
Rachakris Lertpatarakomol

Background and Aim: Wood vinegar is a product generated from the combustion and distillation of wood and other plant materials. It has been shown to suppress bacteria, resulting in healthier livestock and increased yields. This study aimed to determine the efficacy of drinking water supplemented with wood vinegar on growth performance, intestinal health, and gut microbial of broilers. Materials and Methods: A total of 120 Ross 308 1-day-old male broiler chicks were randomly distributed in a completely randomized experimental design. The study consisted of three treatments containing four replicates, with 10 birds in each. Treatments were given 0.5% and 1.0% (V/V) wood vinegar supplemented in drinking water, while no supplementation was given to the control group. The animals were raised in an open-house system. All groups were provided with a commercial diet and drinking water ad libitum. Analysis of variance was conducted using the general linear model procedure to compare the levels of wood vinegar supplementation in drinking water on growth performance, intestinal morphology, and gut microbial. Results: No significant differences (p>0.05) were found for body weight gain, feed intake, feed conversion ratio, and water consumption between groups during the starter (1-21 days old), grower (22-35 days old), and whole (1-35 days old) growth periods. Moreover, no significant differences in villi height and crypt depth (p>0.05) at 21 and 35 days of age were found. In addition, no significant difference in terms of lactic acid bacteria and Escherichia coli was found between the different treatments. Conclusion: Drinking water supplemented with wood vinegar was not found to have an effect on the growth performance and gut microbial of broiler chickens in the present study. However, the supplementation of wood vinegar in drinking water could improve intestinal morphology.


2020 ◽  
Vol 7 (2) ◽  
pp. 65 ◽  
Author(s):  
Ahmed I. Abd El-Mawgoud ◽  
El-Shayma El-Nahass ◽  
Salama A.S. Shany ◽  
Azza A. EL-Sawah ◽  
Al-Hussien M. Dahshan ◽  
...  

In this study, the protective efficacy of an E. coli live attenuated vaccine was compared to the preventive administration of lectin preparation before the challenge. Two hundred broiler chicks were divided into eight equal groups. The first group was used as a negative control group. Three groups were vaccinated at day 1 with the avian colibacillosis live vaccine of which one group served as a vaccinated nonchallenged group. Another two groups were treated with lectin product (0.5 mL/L drinking water) for three days before the challenge. The last two groups served as challenge control for either E. coli O78 or O125 strains. The challenge was conducted at three weeks of age with either homologous O78 or heterologous O125 E. coli strains, using 0.5 mL/bird of each avian pathogenic E. coli (APEC) strain (~108 colony forming units “CFU”/mL)/subcutaneously. The bodyweight and feed conversion ratios (FCR) were calculated for four weeks. Clinical signs and gross and histopathological lesions were scored at two and seven days post inoculation (dpi). The heart and liver of euthanized chickens at 2 dpi were removed aseptically and homogenized to evaluate pathogenic E. coli colonization. Results showed that live avian colibacillosis vaccine reduced mortalities and APEC colonization in the homologous challenge group but not in the heterologous challenge group. Lectin-treated groups showed 20% and 16% mortality after challenge with E. coli O78 and O125, respectively, and both groups showed performance parameters, clinical signs, and histopathological lesion scores comparable to the negative control group, with variable E. coli colonization of heart and liver. The study demonstrated the efficacy of live attenuated avian colibacillosis vaccine against homologous but not heterologous APEC challenge in broiler chickens. The lectin-containing products can be used as a preventive medication to reduce the clinical impacts of colibacillosis regardless of the challenge strain. Standardization of the evaluation parameters for APEC vaccines is recommended.


1971 ◽  
Vol 51 (3) ◽  
pp. 633-637
Author(s):  
T. K. J. COWAN ◽  
G. D. PHILLIPS ◽  
D. B. BRAGG

Broiler chicks, allocated in a randomized block design, were fed four diets containing ethylene diamine tetraacetic acid (EDTA) at 0, 0.1, 0.2 and 0.4% of the diet and drinking water with a high salt concentration (6000 ppm). A control group received tap water and the EDTA-free diet. The addition of 6000 ppm NaCl in the drinking water had no effect on weight gain or feed conversion. Similarly, the inclusion of up to 0.4% EDTA in the feed had no adverse effect on weight gain. Analyses of packed-cell volume (PCV) and plasma sodium, chloride and calcium concentrations showed no changes as a result of treatment. Water consumption almost doubled for the chicks subjected to high salt water regimens compared with the control. Two groups of chicks received the EDTA-free diet, and significantly (P < 0.10) higher mortality was found for the group on the salt water compared with the tap water controls. The mortality in the former was also significantly (P < 0.10) higher than for the group receiving 0.2% EDTA in the diet and salt water. The chicks on the 0.4% EDTA diet had significantly (P < 0.05) higher mortality than control chicks on tap water and those chicks receiving salt water and diets containing 0.1% and 0.2% EDTA. Postmortem examination indicated that ascites and widespread edema were the causes of death in chicks that drank salt water and consumed diets containing no EDTA or 0.4% EDTA. The death of chicks on treatments that resulted in low mortality rates was not attributable to ascites. The reason for the apparent beneficial effect of feeding 0.2% EDTA in the diet in conjunction with the salt water remains open to conjecture.


1970 ◽  
Vol 8 (1) ◽  
pp. 39-44 ◽  
Author(s):  
RC Paul ◽  
N Ahmad ◽  
MA Moinuddin ◽  
N Hasan

The experiment was conducted on “Lohman Meat” broiler chicks to evaluate the effect of exogenous multivitamin and enzyme supplementation on body weight gain, haematological parameters (TEC, Hb content, PCV and ESR) and serum transaminases (AST and ALT). A total of 20, twenty days old broilers were randomly divided into four equal groups (5×4). Group A was considered as control, fed only with commercial ration, group B was treated at a dose rate of 0.5 ml multivitamins per 1 litre of drinking water, group C was treated at a dose rate of 1 ml enzyme per litre of drinking water and group D was treated with multivitamin @ 0.5 ml/L and Enzyme @ 1ml/ L in water from 1 to 21 days of experiment. It was observed that multivitamin and enzyme supplementation significantly (p<0.01) increased body weight. TEC, PCV and Hb content increased significantly (p<0.01) in the treated groups as compared to that of control group. ESR, AST and ALT values decreased significantly (p<0.01) in the treated groups. Therefore, it may be concluded that multivitamin and enzyme may be used with better performances in terms of increase of body weight and blood profiles. Keywords: Multivitamins and enzymes; Effects; Broiler DOI: 10.3329/jbau.v8i1.6396J. Bangladesh Agril. Univ. 8(1): 39-44, 2010


2007 ◽  
Vol 31 (1) ◽  
pp. 50-54
Author(s):  
M. M. Kaisium

Live attenuated vaccine of Strept. Equi was prepared by culturing the bacteriumin increasing concentration of acriflavin and the vaccine was given byinstallation in the nose of rabbits. The treated group showed immune response,the titer of the antibodies was 59.4 ± 4.57 after 2 weeks of vaccination, 237±18.28 after 4 weeks, 475.4 ± 36.57 after 6 weeks, & reach atiter of 512 ± 0 after8 weeks, and the treated group did not show any signs after challenge dose,while the control group died after challenge.


2021 ◽  
Vol 28 (1) ◽  
pp. 32-42
Author(s):  
Raghad N. AL-Saadi ◽  
Imad I. Al-Sultan

This study was aimed to understand the hematological changes in the level of Hb and Met-Hb which produced after potassium nitrate intake via water and feed to broiler chicks for 6 weeks and indifferent concentration also after stoppage for 4 weeks of nitrate intake.  A number of 135 chicks one day old faobro breed were used. After two weeks aclimitiztiation ,chicks were separated in to seven groups , one was control and other six were given potassium nitrate in drinking water or in feed at 0.25, 0.5, 0.75 gm/ kg body weigh to each group.  The results showed significant statistical in the Hb rates and the different nitrate concentrations used. Also there were significant differences in the 2nd week of the experiment and indicated a decrease in Hb concentrations. Statistical significant of difference was obvious in the groups fed on concentrations 0.25, 0.5 gm/ kg b.w. and in groups given nitrate in drinking water in concentrations 0.25, 0.5, 0.75 gm/kg b.w.  There were significant statistical differences in Met-Hb rates formed and the amount of nitrate used and the weeks in all animal groups treated with nitrate which started at the 3rd week from the start of the experiment.  The increase in the rates of Met-Hb indicate an important statistical differences or significances especially in groups fed 0.25 gm/kg b.w. nitrate concentration and in drinking water groups at 0.5 and 0.75 gm/kg b.w. concentrations. no significant statistical differences between the control group from week 8th till the week 10th of the experiment.


2014 ◽  
Vol 3 (1) ◽  
pp. 150-157
Author(s):  
Khalid M. Gaafar

The research was conducted to study the effect of feeding broiler chickens on diets containing isomaltooligosaccharides on the growth performance, carcass traits and immune response. 90-one day old broiler chicks were used according to completely randomized two treatment groups and one control, 30 birds each. Birds fed ad-libitum on basal starter and grower-finisher diets for 35 day. Diets of treatment`s groups contained 0.5 g/Kg and 1 g/Kg of Isomaltooligosaccharides, while the control group fed on the basal diets without Isomaltooligosaccharides supplementation. Dietary supplementation of broiler chickens with Isomaltooligosaccharides improved body weight, feed conversion, carcass traits, two lymphoid organs weight and log antibody titer against avian flu vaccine. Most of the highest values were for birds fed low levels of Isomaltooligosaccharides. Feed intake decreases as Isomaltooligosaccharides level increases. Dietary supplementation with Isomaltooligosaccharides did not affect the lipids profile (triglycerides, total cholesterol, LDL and HDL), however the blood VLDL levels decreased with increased levels of Malondialdehyde and Glutathione reductase. Collectively, Dietary supplementation of broiler chickens with 0.5 g/Kg diet of Isomaltooligosaccharides improved growth performance, carcass traits and immune status.


Author(s):  
Eman A. Al-Rekabi ◽  
Dheyaa K. Alomer ◽  
Rana Talib Al-Muswie ◽  
Khalid G. Al-Fartosi

The present study aimed to investigate the effect of turmeric and ginger on lipid profile of male rats exposed to oxidative stress induced by hydrogen peroxide H2O2 at a concentration of 1% given with consumed drinking water to male rats. Methods: 200 mg/kg from turmeric and ginger were used, and the animals were treatment for 30 days. Results: the results showed a significant increase in cholesterol, triglycerides, low density lipoprotein (LDL), very low density lipoprotein (VLDL), whereas it explained a significant decrease in high density lipoprotein (HDL) of male rats exposed to oxidative stress when compared with control group. the results showed a significant decrease in cholesterol, triglycerides, (LDL), (VLDL), whereas it explained a significant increase in (HDL) of rats treated with turmeric and ginger at dose 200 mg/kg when compared with male rats exposed to oxidative stress.


Author(s):  
L. Gamko ◽  
T. Tarinskaya

It is known that necessary to replace the components of organic acids, which are part of acidifiers when drinking water to poultry in order to prevent the adaptation of microbes in the gastrointestinal tract. In the poultry industry organic acids are widely used, which are used as acidifiers to preserve the properties of water consumed. The purpose of this work was to evaluate the efficiency of broiler meat production when using acidifying agents of drinking water Aquasafe and Veleguard. The experimental part of the work has been performed in JSC “Kurinoe Tsarstvo-Bryansk” broiler area “Roshcha” in the Pochepsky district. The object of research was the livestock of broiler chickens cross Cobb 500 at floor housing. The effect of water acidifiers on meat productivity has been studied. Groups of chickens have been formed on the principle of pairs-analogues. Broiler chickens of experimental groups have been separated from the main livestock by a grid in the corner of the room for 100 heads in each group. It has been found by a result of research to be optimal dose usage of acidifying agents water Aquasafe and Veleguard to drink to broiler chickens. The positive effect of these acidifiers on the digestion of crude protein, crude fat, crude fiber, contributing to the effective use of nitrogen, which led to an increase in the intensity of growth, young animals’ livability and improved feed conversion. Slaughter yield in the control group was 55,1 %, and in the experimental group 57,2 and 58,4 %, which was by 2,1 and 3,3 % higher with the same level of metabolic energy and nutrients. In chickens that consumed acidifi ers more intensively used nutrients feed for deposition in the body of the components of the carcass, which affected the production. A positive impact of acidifying agents Aquasafe and Veleguard on meat quality in broiler chickens has been found.


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