scholarly journals Some observations on the sero-prevalence of heartwater and tick infestation in Zambian goats : research communication

2004 ◽  
Vol 71 (2) ◽  
Author(s):  
B. Ahmadu ◽  
C.E.A. Lovelace ◽  
S. Mahan
Keyword(s):  
Tick Species ◽  
Tick Infestation ◽  
Amblyomma Variegatum ◽  
Arid Areas ◽  
Serum Samples ◽  
Ehrlichia Ruminantium ◽  
Antigen Elisa ◽  
Elisa Technique ◽  
Species Being ◽  
Semi Arid

A survey was carried out to define the distribution of heartwater in goats that originated from six districts in communal grazing semi-arid areas of Zambia. A total of 181 samples (40.1 %) out of 451 serum samples from adult goats were positive for Ehrlichia ruminantium antibodies after screening using indirect MAP-1B antigen ELISA technique with statistically significant differences (P < 0.01) between the six districts. Out of 1 036 adult goats examined for tick infestation, 105 were infested by ticks, with Amblyomma species being the most dominant tick encountered. Amblyomma variegatum, which is the vector for heartwater transmission in Zambia constituted 42.4 % of the tick species, identified. The overall tick infestation rate was 10 % while the tick:goat ratio was 2.1:1. Amblyomma variegatum appears to be widespread throughout the study area, as are antibodies to E. ruminantium.

scholarly journals Sensitivity of Different Cattle Breeds to the Infestation of Cattle Ticks Amblyomma variegatum, Rhipicephalus microplus, and Hyalomma spp. on the Natural Pastures of Opkara Farm, Benin

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Roland Eric Yessinou ◽  
Camus Adoligbe ◽  
Yao Akpo ◽  
Justin Adinci ◽  
Issaka Youssao Abdou Karim ◽  
...  
Keyword(s):  
Tick Species ◽  
Tick Infestation ◽  
Tick Control ◽  
Rhipicephalus Microplus ◽  
Amblyomma Variegatum ◽  
Cattle Farm ◽  
Cattle Breeds ◽  
Cattle Ticks ◽  
Significant Difference ◽  
The Mean

A study was carried out on the Opkara (Benin) cattle farm on 64 cattle of four different breeds (16 individuals per breed) from June to December 2016. During this study, three tick species were found in different numbers, Amblyomma variegatum (732), Rhipicephalus microplus (8079), and Hyalomma spp. (208), with parasitic intensity of 11.90, 126.23, and 3.25, respectively. The interracial comparison of the tick infestation between the cattle showed a significant difference (P<0.001). However, Girolando was more infested than all the cattle breeds. Infestation of A. variegatum, R. microplus, and Hyalomma spp. on the Girolando was, respectively, 19.43 ± 2.71, 171.25 ± 23.50, and 7.12 ± 0.63, but the Borgou were less infested. Borgou breed females were more infested by A. variegatum (4.41 ± 1.14) than females Girolando (4.20 ± 0.90). The Crossbred and Azawak females were less infested (P<0.01). The mean of A. variegatum on Borgou, Azawak, Crossbred, and Girolando calves was 1.29 ± 0.35, 0.66 ± 0.26, 1.37 ± 0.37, and 2.25 ± 0.48 (P<0.01), respectively. The results of this study can be exploited to include genetic and nongenetic approaches to tick control.

Effects of X-Ray Exposure on Some CMI Regulatory Cytokines in Technicians Serum Samples

2018 ◽  
Vol 9 (4) ◽  
Author(s):  
Weam S Al-Hamadany
Keyword(s):  
Clinical Status ◽  
Cell Mediated Immunity ◽  
Normal Range ◽  
Serum Samples ◽  
X Ray ◽  
Immunosuppressive Factor ◽  
Elisa Technique ◽  
Immunological Process ◽  
Field Workers ◽  
Tomography Scan

Ionizing radiation considered as an immunosuppressive factor upon over dose of exposure. Radiation field workers usually following a periodic checkup to monitor changes in their clinical status. Cell Mediated Immunity (CMI) has an important cytokines that regulate this specific immunological process. This study estimated the Interleukins (IL-2, IL-12 and IL-18) levels in serum samples using ELISA technique. Serum samples were collected from X-ray Technicians (Radiography, Fluoroscopy and Computed Tomography Scan Technicians) working in AL-Muthanna governorate hospitals. A total of (60) technicians and (30) control were involved in this research. Results showed significant decrease in IL-2 levels and increase in IL-18 levels in test groups (technicians) as compared with controls. While, IL-12 levels did not show a difference; all obtained values were within normal range. Overdose of X-ray exposure caused CMI suppression via disturbing the levels of critical cytokines (IL-2 and IL-18) leading to CMI loss regulation.

Environmental control of germination and dormancy of seeds of two cytotypes of Lygeum spartum L., a perennial grass of semi-arid and arid areas in Algeria

2010 ◽  
Vol 36 (1) ◽  
pp. 89-98 ◽  
Author(s):  
Abderazak Djabeur ◽  
Meriem Kaid-Harche ◽  
Daniel Côme ◽  
Françoise Corbineau
Keyword(s):  
Environmental Control ◽  
Perennial Grass ◽  
Arid Areas ◽  
Semi Arid

A Survey on Tick Infestation in Domestic Birds Sold at Gwagwalada Market, Abuja, FCT, Nigeria.

2016 ◽  
Vol 5 (04) ◽  
pp. 4974
Author(s):  
Ayoh Stephen O. ◽  
Olanrewaju Comfort A*
Keyword(s):  
Chemical Control ◽  
Tick Species ◽  
Tick Infestation ◽  
Guinea Fowl ◽  
Vector Group ◽  
Arthropod Vector ◽  
Argas Persicus ◽  
Domestic Birds ◽  
Micro Organisms

Ticks transmit a greater variety of pathogenic micro-organisms than any other arthropod vector group, and are among the most important vectors of diseases affecting animals. A survey on the prevalence of tick species infesting domestic birds sold in Gwagwalada main market, Abuja between April and July, 2015. A total of 450 birds were examined by feather separation with fingers and a pair of forceps to expose the skin of the birds for presence of the ticks. An overall prevalence of 25.6% was observed. Out of the 150 domestic fowls examined 62(53.9%) were infested, 44(29.3%) of the 150 Guinea fowl and 9(6.0%) of the 150 Pigeons were infested. Of all the ticks identified, 93(51.4%) were from the Domestic Fowls and 77(42.5%) from the Guinea fowl and 11(6.0%) from Pigeon. Thirty (32.3%) of the ticks from the Domestic fowls were Argas persicus, 25(26.9%) Argas walkerae, 20 (21.5%) Ornithodorus moubata and 18(19.4%) Ornithodorus savignyi. Similarly, 34(44.2%) of the ticks from Guinea fowl were A. walkerae, 20(28.2%) O. moubataand 23(32.4%) O. savignyi. Five (45.5%) of the ticks from Pigeon were A. persicus, 4 (36.4%) were A. walkerae, 2 (18.2%) were O. moubata and no O. savignyi. Observation on the location of tick from the hosts body showed highest prevalence was found under the wings (55.2%) and lowest on the head & neck (5.00%). The result of this research revealed that Gwagwalada market poultry section is endemic of tick infestation. Chemical control with acaricides and improved management and sanitation of the poultry cages in the market should be enforced.

Loosely coupled SaltMod for simulating groundwater and salt dynamics under well-canal conjunctive irrigation in semi-arid areas

2017 ◽  
Vol 192 ◽  
pp. 209-220 ◽  
Author(s):  
Wei Mao ◽  
Jinzhong Yang ◽  
Yan Zhu ◽  
Ming Ye ◽  
Jingwei Wu
Keyword(s):  
Arid Areas ◽  
Loosely Coupled ◽  
Semi Arid

The use ofin vitrogas production to evaluate rumen fermentation of leaves of 24 browse species indigenous to semi-arid areas of Zimbabwe

1998 ◽  
Vol 22 ◽  
pp. 238-240
Author(s):  
L. R. Ndlovu ◽  
L. Hove
Keyword(s):  
Woody Plants ◽  
Nutritive Value ◽  
Gas Production ◽  
Arid Areas ◽  
Chemical Methods ◽  
Tropical Regions ◽  
Biological Assays ◽  
Browse Species ◽  
Semi Arid

Browse species are important food resources in semi-arid areas, especially during the dry season when the nutritive value of grass is at its lowest. However, browse plants often contain secondary plant compounds which limit their nutritive value. Proanthocyanidins (PAs) (also called condensed tannins) and related flavonoids are a common constituent of woody plants in tropical regions (Mangan, 1988). PAs cause a bitter and astringent taste which lowers food palatability and they also lower the digestibility of proteins and carbohydrates (Jacksonet al., 1996). PAs also interfere with current chemical methods that are used for estimating nutritive value of foods (Reed, 1995). Biological assays, especially ,in vitrotechniques, have a potential to reflect better the nutritive value of foods that contain PAs. Thein vitrogas production technique has been found to reliably predict the nutritive value of temperate forages (Makkaret al., 1996). There has been limited research on its efficacy with tropical forages. The experiment reported here was conducted to test the hypothesis that gas production of tropical browse species reflects their content of fibre, protein and/or PAs.

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