scholarly journals Seroprevalence of Brucella infection in small ruminants from two institutional farms and a slaughter slab in Zaria, Nigeria

2020 ◽  
Vol 18 (2) ◽  
pp. 91-99
Author(s):  
H.U. Buhari ◽  
S.N.A. Saidu ◽  
C.A. Kudi ◽  
E.C. Okolocha ◽  
B.Y. Kaltungo

Brucellosis has continued to become a disease of major economic concern in developing countries. In a study to determine the seroprevalence of brucellosis in small ruminants in Zaria, Kaduna State, Nigeria, 1036 samples comprising 768 goats from institutional farms (n=384) and a slaughter slab (n=384), and 268 sheep all from institutional farms were used. The sera samples obtained from the animals were subjected to the Modified Rose Bengal Plate Test (m-RBPT) followed by Serum Agglutination Test with ethylene diamine tetraacetic acid (SAT-EDTA) for Brucella antibodies detection. Milk samples were collected from lactating sheep and goats and subjected to the Milk Ring Test (MRT) for detection of Brucella antibodies. Results of the study revealed an overall seroprevalence rate of 6.37%, 8.90% and 12.96% for m-RBPT, SAT-EDTA and MRT, respectively. The seroprevalence in sheep and goats showed significant species difference (P < 0.05) for m-RBPT (10.05% vs 5.08%), but insignificant (P > 0.05) species difference for SAT-EDTA (9.33% vs 8.72%) and MRT (15.00% vs 11.76%) respectively. The seroprevalence in males and females showed insignificant sex difference (P > 0.05) for m-RBPT (6.59% vs 6.21%) and SAT-EDTA (7.76% vs 9.66%). On the other hand, the seroprevalence was higher in young (< 1 year old) than adult (> 1 year old) animals for SAT-EDTA (15.32% vs 8.11%). The seroprevalence in Red Sokoto, Sahel and West African Dwarf goats showed significant breed difference (P < 0.05) for m-RBPT (4.59% vs 5.55% vs 8.33%) and SAT-EDTA (6.80% vs 16.67% vs 12.50%). It was concluded that the seroprevalence of brucellosis was higher in sheep, Sahel goats and younger animals. To understand the pattern and dynamics of transmission of brucellosis in different groups of animals, there is the need for further studies to identify the Brucella species circulating in small ruminants. Keywords: Antibodies, Brucellosis, m-RBPT, SAT-EDTA, Small ruminants

2019 ◽  
Vol 12 (4) ◽  
pp. 558-564 ◽  
Author(s):  
Sajid Ur Rahman ◽  
Lei Zhu ◽  
Li Cao ◽  
Yafei Zhang ◽  
Xiaoyan Chu ◽  
...  

Background and Aim: Brucellosis is one of the most widespread zoonotic diseases globally. Studies indicated the existence of Brucella infection in goats in some province of China. Thus this study aimed to estimate the prevalence of brucellosis in goats of Anhui Province, China. Materials and Methods: Serum and milk samples obtained from goats in different regions of Anhui province were studied through rose Bengal plate test (RBPT), serum agglutination test (SAT), milk ring test (MRT), and polymerase chain reaction (PCR). Results: The investigation frequency of brucellosis using RBPT, SAT, MRT, and PCR methods was 3.9% (n=7), 4.45% (n=8), 11.67% (n=7), and 86.67% (n=156), respectively. The prevalence recorded for brucellosis in sex-wise animals as in females 5.55%, 6.67%, 11.67%, and 78.8% through above methods, while in males, it was 2.23% and 2.23% by RBPT and SAT. However, in age-wise animals, the results 6.36%, 7.27%, 11.67%, and 74.5% were perceived positive by RBPT, SAT, MRT, and PCR in adult females, respectively, but young males and females (up to 9 months) were considered free from brucellosis. Conclusion: These results show that prevalence of brucellosis was relatively higher in females than male's goats and SAT was relatively specific and accurate as compared to RBPT and MRT, but for diagnosis of brucellosis, molecular method (PCR) is recommended.


2021 ◽  
Vol 30 (1) ◽  
pp. 107-116
Author(s):  
J. O. O. Bale ◽  
S. Nuru ◽  
P. B. Addo ◽  
I. A. Adeyinka

Bacteriological investigations of sheep and goats brucellosis were carried out in Northern Nigeria. Seven government or quasi-government farms were investigated. A total of 418 sheep and goats milk samples were examined culturally. Investigation revealed a 34.75 percent and 15.88 percent rate of infection in goats and sheep by milk ring test. Of 277 sheep and 141 goats milk samples examined culturally brucellae were isolated from four sheep and six goats giving a total of ten isolates. Biochemical and serological studies of the isolates revealed that they were Br. melitensis indicating Br. melitensis as probably the common cause of brucellosis in sleep and goals in the areas surveyed. The results show that there was greater chance of isolating Brucella from milk which were strongly positive than from those which were weakly positive. The economic importance and public health significance of brucellosis in sheep and goats are discussed.


Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 814
Author(s):  
Münir Aktaş ◽  
Sezayi Özübek ◽  
Mehmet Can Uluçeşme

Anaplasma phagocytophilum causes tick-borne fever in small ruminants. Recently, novel Anaplasma variants related to A. phagocytophilum have been reported in ruminants from Tunisia, Italy, South Korea, Japan, and China. Based on 16S rRNA and groEL genes and sequencing, we screened the frequency of A. phagocytophilum and related variants in 433 apparently healthy small ruminants in Turkey. Anaplasma spp. overall infection rates were 27.9% (121/433 analyzed samples). The frequency of A. phagocytophilum and A. phagocytophilum-like 1 infections was 1.4% and 26.5%, respectively. No A. phagocytophilum-like 2 was detected in the tested animals. The prevalence of Anaplasma spp. was comparable in species, and no significant difference was detected between sheep and goats, whereas the prevalence significantly increased with tick infestation. Sequencing confirmed PCR-RFLP data and showed the presence of A. phagocytophilum and A. phagocytophilum-like-1 variant in the sampled animals. Phylogeny-based on 16S rRNA gene revealed the A. phagocytophilum-like 1 in a separate clade together with the previous isolates detected in small ruminants and ticks. In this work, A. phagocytophilum-like 1 has been detected for the first time in sheep and goats from Turkey. This finding revealed that the variant should be considered in the diagnosis of caprine and ovine anaplasmosis.


Dairy ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 422-424
Author(s):  
Paola Scano ◽  
Pierluigi Caboni

Small ruminants, such as sheep and goats, are mostly raised in smallholder farming systems widely distributed throughout the world [...]


Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1698
Author(s):  
Daniel Pius Mdetele ◽  
Erick Komba ◽  
Misago Dimson Seth ◽  
Gerald Misinzo ◽  
Richard Kock ◽  
...  

Peste des petits ruminants (PPR) is an important transboundary animal disease of domestic small ruminants, camels, and wild artiodactyls. The disease has significant socio-economic impact on communities that depend on livestock for their livelihood and is a threat to endangered susceptible wild species. The aim of this review was to describe the introduction of PPR to Tanzania and its subsequent spread to different parts of the country. On-line databases were searched for peer-reviewed and grey literature, formal and informal reports were obtained from Tanzanian Zonal Veterinary Investigation Centres and Laboratories, and Veterinary Officers involved with PPR surveillance were contacted. PPR virus (PPRV) was confirmed in northern Tanzania in 2008, although serological data from samples collected in the region in 1998 and 2004, and evidence that the virus was already circulating in Uganda in 2003, suggests that PPRV might have been present earlier than this. It is likely that the virus which became established in Tanzania was introduced from Kenya between 2006–7 through the cross-border movement of small ruminants for trade or grazing resources, and then spread to eastern, central, and southern Tanzania from 2008 to 2010 through movement of small ruminants by pastoralists and traders. There was no evidence of PPRV sero-conversion in wildlife based on sera collected up to 2012, suggesting that they did not play a vectoring or bridging role in the establishment of PPRV in Tanzania. PPRV lineages II, III and IV have been detected, indicating that there have been several virus introductions. PPRV is now considered to be endemic in sheep and goats in Tanzania, but there has been no evidence of PPR clinical disease in wildlife species in Tanzania, although serum samples collected in 2014 from several wild ruminant species were PPRV sero-positive. Similarly, no PPR disease has been observed in cattle and camels. In these atypical hosts, serological evidence indicates exposure to PPRV infection, most likely through spillover from infected sheep and goats. Some of the challenges for PPRV eradication in Tanzania include movements of small ruminants, including transboundary movements, and the capacity of veterinary services for disease surveillance and vaccination. Using wildlife and atypical domestic hosts for PPR surveillance is a useful indicator of endemism and the ongoing circulation of PPRV in livestock, especially during the implementation of vaccination to control or eliminate the disease in sheep and goats. PPR disease has a major socio-economic impact in Tanzania, which justifies the investment in a comprehensive PPRV eradication programme.


Author(s):  
Mohamed El-Diasty ◽  
◽  
Rana El-Said ◽  
Adel Abdelkhalek ◽  
◽  
...  

Brucellosis is an endemic disease among livestock and humans in Egypt. Sheep are the most common type of livestock ruminant in Egypt and considered the fundamental etiology for spreading and maintaining B. melitensis either in human being or animal populations. In the current study, we investigated the seroprevalence of brucellosis in sheep herds reared in Bilqase, one of the biggest cities at Dakahlia governorate in Egypt's Delta region. In total, 610 sheep from seven herds were investigated. Anti-Brucella antibodies were detected in 48 (7.8%) samples tested by Buffered Acidified Plate Antigen Test (BAPAT), in 44 (7.2%) samples tested by Rose Bengal Plate Test (RBPT) and in 41 (6.7%) samples tested by Milk Ring Test (MRT). The isolation rate was 29.6% (16 out of 54 examined samples). Brucella organism was isolated from three aborted fetuses, one tissue sample of slaughtered serologically positive ewe and 12 milk samples. The Abortus Melitensis Ovis Suis-PCR (AMOS-PCR) confirmed all Brucella strains as B. melitensis. More than three successive negative serological tests are required to declare that the infected herd is free from brucellosis. In conclusion, no single serological test could conclusively diagnose brucellosis in endemic areas. Confirmation of results with molecular diagnosis or culture is indispensable in diagnosis. B. melitensis was the prevalent serotype among sheep in Dakahlia governorate


2017 ◽  
Vol 9 (7) ◽  
pp. 105
Author(s):  
Fallah Samuel Kassoh ◽  
Jusufu Abdulai ◽  
Osman Nabay ◽  
Rebecca Bockarie

The consumption of Small ruminants’ meat (sheep and goat) form an integral component of an average Ghanaian’s diet due to the country’s emergence to a middle income earning status and awareness of the outstanding benefits of a nutritious diet. However, periodic shocks in market availability of products severely impacts access and in most cases cause price hike hence affecting dietary patterns especially of urban dwellers that are mostly habitual in recurrent consumption of these products. Against such insight, this study investigates the factors that influence the inlet choice of sheep and goats traders in two urban towns of Ghana (Kumasi and Tamale) using Multinomial logit model. The selection of Kumasi and Tamale markets were based on the progressive marketing and consumption of sheep (S) and goats (G). A multi stage sampling technique was used in this study. A reconnaissance survey was carried out in Kumasi and Tamale metropolis in order to identify the existing markets and to generate the sample frame. Ten markets were purposively selected based on the proximity of the markets to the urban centres. A total of 284 traders were randomly sampled from the sampling frame. A structured questionnaire was used to collect relevant data, and analyzed using descriptive statistics and inferential statistics. The results of the study showed that majority of the traders were male with most (43%) falling within the age range of 31 to 40 years. International market (Burkina Faso) was identified as the major source of sheep and goats with 37% of total respondents sourcing from there. The major factors found to be influencing the inlet choice of sheep and goats by sampled traders in the study areas were prices, licenses, quantity of animals handled, transportation cost, education, experience and age of the traders. Based on the findings of the study, the following recommendations were suggested to improve the SG trade in urban centres of Ghana: Credit provision to traders who desire it to establish and expand their investment; reduction of license cost; and general reduction of fuel price so as to ease economic mobility of products.


2020 ◽  
Vol 165 (10) ◽  
pp. 2147-2163 ◽  
Author(s):  
William G. Dundon ◽  
Adama Diallo ◽  
Giovanni Cattoli

Abstract Small ruminants (e.g., sheep and goats) contribute considerably to the cash income and nutrition of small farmers in most countries in Africa and Asia. Their husbandry is threatened by the highly infectious transboundary viral disease peste des petits ruminants (PPR) caused by peste-des-petits-ruminants virus (PPRV). Given its social and economic impact, PPR is presently being targeted by international organizations for global eradication by 2030. Since its first description in Côte d’Ivoire in 1942, and particularly over the last 10 years, a large amount of molecular epidemiological data on the virus have been generated in Africa. This review aims to consolidate these data in order to have a clearer picture of the current PPR situation in Africa, which will, in turn, assist authorities in global eradication attempts.


2007 ◽  
Vol 136 (5) ◽  
pp. 644-652 ◽  
Author(s):  
M. FLOROU ◽  
L. LEONTIDES ◽  
P. KOSTOULAS ◽  
C. BILLINIS ◽  
M. SOFIA ◽  
...  

SUMMARYThis study aimed to: (1) investigate whether non-ruminant wildlife interfacing with dairy sheep and goats of four Greek flocks endemically infected withMycobacterium aviumsubspeciesparatuberculosis(MAP) harboured MAP and (2) genetically compare the strains isolated from the wildlife to those isolated from the small ruminants of these flocks. We cultured and screened, by polymerase chain reaction (PCR), pooled-tissue samples from 327 wild animals of 11 species for the MAP-specific IS900insertion sequence. We also cultured faecal samples from 100 sheep or goats from each of the four flocks. MAP was detected in samples from 11 sheep, 12 goats, two mice, two rats, a hare and a fox. Only one rat had histopathological findings. Genetic typing categorized 21 isolates as cattle-type strains and two, from a house mouse and a goat respectively, as sheep-type strains; this is the first report of a rodent harbouring a sheep-type strain. The MAP types that were most frequently isolated amongst the sheep and goats of each flock were also the ones isolated from sympatric rodents; those isolated from the fox and hare also belonged to the predominant ruminant strains.


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