An appraisal of rabies occurrence and control in Kisumu Municipality, Kenya

Background: Rabies is a serious neglected disease which occurs worldwide. In urban areas, the control of the disease is expected to be hampered by several unique constraints.Objective: To appraise the occurrence and control of rabies.Study Design: The tools used in the study included key informant interviews with senior veterinary and medical officers and a questionnaire survey on 15 veterinary officers and 9 human physicians. The occurrence of animal bites and costs involved in treatment was also investigated using retrospective hospital data for the year 2007. Setting: Kisumu Municipality, Kenya.Results: The control of rabies was under the Veterinary Department through dog vaccinations and baiting, and also under the Department of Public Health (DPH) through people vaccinations and post exposure treatments. The constraints observed were poor coordination in rabies control efforts, understaffing and limited resources. Animal bites were common with 1270 cases reported during 2007. The post-bite rabies vaccines were mainly purchased from local chemists at KES 7,500 per full dose. This amounted to an annual total cost of KES 9,525,000 (136,071 USD). The bites were mainly from domestic dogs (89%) and occurred commonly in highly populated areas. The mean age of people with bites was 21 (2.5 - 78) years, showing that young people had a higher risk. Males (59%) were at higher risk of bites than females (41%). Conclusions: It would be important for the relevant departments to harmonise theirrabies control strategies and also address the prevalent constraints by using local networks. The incidence of rabies and the associated epidemiology needs proper updated documentation with a view of carrying out mass vaccination of dogs at times free of cost to the economically disadvantaged owners

Effect of breed and feeding strategy on the eating quality of Kenyan beef

In Kenya, most of the livestock are reared on grass using extensive pastoral systems. Nevertheless, intensive feed-lot systems to finish beef cattle have become popular among local producers. The two systems are likely to have a different impact on the eating quality of beef, because quality is determined by the combined effects of breed, nutrition and management. The effect of free-range and semi-feed lot feeding strategies on the eating quality of beef from Zebu and Sahiwal breeds was assessed. A 2 x 2 between subjects factorial design was used (two breeds fed using two feeding strategies). From each single breed and feeding strategy combination, seven cattle were selected after three months of feeding. The cattle were slaughtered and their rump steaks sampled. The samples were frozen for 24 h then thawed for 4 h prior to analysis. The steaks’ pH was measured after cooking. They were then subjected to Texture Profile Analysis (TPA), ‘Warner-Bratzler’ Shear (WBS) tests, and organoleptic evaluations. The pH did not differ significantly with feeding strategy or breed (P≥0.05). The result from TPA and WBS revealed that semi feed-lot Sahiwal beef was tender than free-range Sahiwal beef (P<0.05). On the other hand, there was no difference in tenderness between feed-lot and free-range Zebu beef (P≥0.05). An analysis between the breeds showed that feed-lot Sahiwal beef was tender than feed-lot Zebu beef (P<0.05), but there was no difference in tenderness between beef from free-range Sahiwal and free-range Zebu (P≥0.05). In the sensory analysis, there was a significant difference for each of the sensory parameters (P<0.05, each). Steaks from semi-feed lot Sahiwal were preferred to the other beef steaks. In conclusion, a semi-feed lot feeding strategy has the potential to improve the eating quality of beef from Sahiwal breed. Nevertheless, the improvement in the eating quality observed with Zebu breed, although not statistically significant, gives an opportunity for value chain actors to explore other management systems that can be combined with those assessed in this study to improve eating quality.Keywords: Beef, rump steak, eating quality, Sahiwal, Zebu, feed lot, pastoral, Keny

The Prevalence of Ecto and Endoparasites in Pigs in Urban and Peri-Urban Areas of Mwanza City, Tanzania

Parasitism is the most serious constraint causing continuous ill-healthand lowered productivity in livestock in Tanzania and sub-Saharan Africa as a whole. This study was carried out in urban and peri-urban areas of Mwanza city and aimed to determine the prevalence of parasitic infections in pigs kept by small holder livestock keepers. A random sample of 14 urban farmers with a total of 213 pigs and 14 peri-urban farmers with a total of 155 pigs were selected. Faecal samples were collected from each pig. Ectoparasites were examined and their morphological characteristics recorded. Direct smear floatation and sedimentation methods were employed to detect endoparasites in the faeces. The prevalence of different types of endoparasites in urban Mwanza city pigs were: Strongylidnematodes (11.7%) Entomoeba ssp (27.2%), Ascaris suum (1.8%)  Balntidium coli (3.8%) and Coccidia spp (3.3%) and the only ectoparasites found was sarcoptic mange (1.4%). In the peri -urban area the  endoparasites found were Entomoeba spp (51.6%), Strongylid nematodes (9.7%), Coccidia spp (5.8%). Ascaris suum (12.9%) Balantidium coli 20.6%) and Trichurus suis (3.8%) and the ectoparasites was sarcoptic mange (21.9%). Every piggery where samples were taken, the management system was assessed. The difference in the livestock management systems in the two areas clearly explains the observed high prevalence of parasite infection in the peri-uban compared to the urban areas of Mwanza city. The negative impact of these parasites on livestock production and their public health importance -since some of them are zoonotic in nature- cannot be underestimated. The present study validates the need to bring awareness to the farmers and the public at large so that they may embark on cost effective development of parasite control strategies.Key words: Mwanza urban, peri-urban, endoparasites, ectoparasites, protozoa, zoonosis, Tanzania, pig

Epidemiology of overweight and obesity in school going children: 11-15 years in the urban area of Cuttack city

Background: The world health organization has described obesity as one of today’s most neglected public health problems, affecting developed and developing countries in the world. A dramatic increase in overweight and obesity among children and adolescent has raised the concern of various public health physicians especially in developing country like India. This study was conducted with an objective to study the prevalence of overweight and obesity and its associated risk factors among school going children of Cuttack city.Methods: School based cross sectional study was done among the children of 6th to 10th class. To calculate the maximum sample size prevalence of obesity was assumed to be 10%, taking absolute error of 2% and 10% non-response rate the sample was calculated to be 1000. By multistage sampling method the children were selected. Data was collected using a pre-designed and pre-tested questionnaire and analyzed by using SPSS version 16.Results: The combined prevalence of overweight and obesity was 20.2% and it was higher among boys (20.6%) than girls (19.8%). Overweight and obesity was found to be significantly associated with type of school, parent’s occupation, hours of using TV/computer, eating habit, family history of obesity, type of family and mode of transport to school.Conclusions: Prevalence of overweight and obesity was found to be high in school going children, which indicates an urgent need to increase awareness via education and motivation of all stakeholders to prevent the complications in future

The role of parasitic diseases as causes of mortality in cattle in a high potential area of central Kenya: a quantitative analysis

Postmortem records of cattle brought to the Veterinary School in Kabete near Nairobi were examined for a period of 15 years (1984-1998, inclusive) in order to establish the role that parasitic diseases played as causes of death. The cattle were mainly of exotic breeds but a few were crosses or of indigenous breeds. There was a total of 1 413 cases of deaths from various diseases of which 177 (13 %) were due to parasites. The tick-borne diseases were in high proportions and accounted for 84,7% among the parasitic causes, which represented 10,6% of all the deaths recorded. The main tick-borne disease was East Coast fever (ECF) (65 %) followed by heartwater (10,2 %), babesiosis (5 ,1 %) and anaplasmosis (4,5 %). Hydatidosis was responsible for 7,3 % of deaths from parasitic causes. Deaths from ECF were recorded in all the 15 years and in high proportions compared to those due to heartwater (8/15), babesiosis (7/15) and anaplasmosis (5/15). Over the period under consideration, no decline was noted among various disease conditions despite advances made in controlling tick vectors and in the treatment of various parasitic conditions. The area covered by this study has the advantage of having several veterinary-related institutions close by. Hence knowledge and awareness about livestock diseases is relatively high compared to other parts of the country. It is therefore challenging to the Veterinary Department to examine the service delivery systems and other factors that may contribute to the persistent presence of these fatal parasitic conditions of cattle.The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat v.9 was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.mn201

A comparison of serum biochemical changes in two breeds of sheep (Red Masai and Dorper) experimentally infected with Fasciola Gigantica

Twelve Red Masai and 12 Dorper sheep aged between 6 and 9 months, were acquired from a flukefree area and sheep of each breed divided into two equal groups of six. Each animal in one group of each breed was experimentally infected with 400 viable metacercariae of Fasciola gigantica. The other groups acted as uninfected controls. Blood samples were taken at weekly intervals for the determination of serum bilirubin, albumin, and gamma glutamyl transferase levels. Following the establishment of infection, albumin levels declined in both breeds of infected animals without any significant difference between the two breeds. However, serum bilirubin and gamma glutamyl transferase (GGT) in the infected animals were elevated significantly more in the Dorper than in the Red Masai sheep. Based on these findings, it would appear that Dorper sheep are more susceptible to the infection than Red Masai sheep.The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat v.9 was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.Danish International Development Agency (DANIDA).mn201

Gastrointestinal nematode infections in German sheep

The objective of the present study was to determine the prevalence and variation of natural gastrointestinal nematode (GIN) infections in lambs according to birth type, gender and breed based on individual faecal egg counts (FEC) from various regions in Germany. A total of 3,924 lambs (3 to 15 months old) with different genetic backgrounds (Merinoland, German Blackhead Mutton, Rhoen, Texel and Merino long-wool) were individually sampled during the grazing period between 2006 and 2008. Furthermore, pooled faecal samples from each of the farms were cultured in order to differentiate the third-stage larvae of the nematode spp. Sixty-three percent of the lambs were infected with GIN. The infections were mostly low to moderate and involved several nematode species. The Trichostrongylus spp. was the predominant species based on the percentage of larvae in faecal cultures. Only 11.4% of the lambs were free of Eimeria oocysts. Tapeworm eggs were encountered in 13.2% of all samples. The prevalence of GIN infections varied significantly (P < 0.001) among farms. A significantly higher FEC (P < 0.05) was observed in multiple-born lambs when compared with singletons. Moreover, male lambs were more susceptible to infection than females (P < 0.001). No significant differences (P > 0.05) were observed between breeds regarding FEC. Inter-individual variations were higher than inter-breed differences, which may indicate the possibility of selection within these breeds for parasites resistance as described in earlier studies

Variation and covariation in strongyle infection in East African shorthorn zebu calves.

Parasite burden varies widely between individuals within a population, and can covary with multiple aspects of individual phenotype. Here we investigate the sources of variation in faecal strongyle eggs counts, and its association with body weight and a suite of haematological measures, in a cohort of indigenous zebu calves in Western Kenya, using relatedness matrices reconstructed from single nucleotide polymorphism (SNP) genotypes. Strongyle egg count was heritable (h2 = 23·9%, s.e. = 11·8%) and we also found heritability of white blood cell counts (WBC) (h2 = 27·6%, s.e. = 10·6%). All the traits investigated showed negative phenotypic covariances with strongyle egg count throughout the first year: high worm counts were associated with low values of WBC, red blood cell count, total serum protein and absolute eosinophil count. Furthermore, calf body weight at 1 week old was a significant predictor of strongyle EPG at 16–51 weeks, with smaller calves having a higher strongyle egg count later in life. Our results indicate a genetic basis to strongyle EPG in this population, and also reveal consistently strong negative associations between strongyle infection and other important aspects of the multivariate phenotype