Goats In Areas Research Articles

Molecular detection of Cryptosporidium parvum in sheep and goats in rural areas of Al-Muthanna Province, Iraq

Background: Cryptosporidium species are widespread protozoa and are considered an important cause of diarrhea in humans and animals. Aim: The aim of this study was to identify the occurrence of Cryptosporidium parvum in diarrheic sheep and goats from the rural areas of the Al-Muthanna Province, southern Iraq, based on molecular screening using PCR. The outcomes would help in determining the distribution of C. parvum in sheep and goats in the area, as well as the risk factors for the infection. Methodology: Sixty fecal samples were collected from clinically ill sheep and goats. The samples were submitted to PCR and sequencing that targeted the 18S rRNA gene in the protozoan. Results: The PCR revealed a 60% (18 samples) and 76.67% (23 samples) positive identification of C. parvum in sheep and goats, respectively. The sequencing demonstrated nucleotide similarities with isolates deriving from Iraq (MG878399.1) and India (JN836324.1) for the sheep isolates, and with isolates deriving from South Korea (DQ054819.1) and the USA (AF159112.1) for the goat isolates. Conclusion: C. parvum is the dominant species in the sheep and goats of Al-Muthanna Province, in southern Iraq. Moreover, the phylogenetic analysis demonstrates that the current study’s isolates may share the same ancestor with local and global isolates.

Seroprevalence and risk factors of Toxoplasma gondii infection in goats from South Punjab Province, Pakistan

Layyah District in South Punjab Province of Pakistan offers the most intensive caprine economy in the country; its Indus riverine and desert environment makes the area peculiar and worthy of specific investigations. This study aimed to investigate the prevalence of anti-Toxoplasma gondii (T. gondii) IgG-antibody in goats in serum samples and the potential risk factors. The prevalence of T. gondii infection was estimated using a two-stage sample design. All caprine farms in the study area were stratified by size, and from these 110 were randomly selected. Twelve goats (>1-year-old) were selected from each farm and a total of 1320 serum samples were collected and tested by ELISA. A questionnaire on the conditions and management practices of each farm was administered to 110 farmers. Four hundred and sixteen out of 1320 sera samples (31.5%) were found positive and 89% of the flock had at least one seropositive goat. The proportion of seropositive goats tested within each flock ranged from 8.3% to 83.3%. with several factors contributing to this heterogeneity. Goat age played a significant role in the presence of cats. Significant interactions were related to goat farms having floor of dirt and kitten presence. Moreover, age class, abortion history and water source supply were modulated by owner education levels. This is the first study to determine the prevalence of anti-T. gondii antibodies in goats sera in Layyah district and the largest carried out so far in Pakistan. The remarkable presence of T. gondii among goats in areas where goat farming plays a significant economic role may pose a production threat to the small-stock industry, as well as to public health and food safety. Therefore, investigations to identify high-risk goat populations are highly recommended in order to facilitate the implementation of local control strategies.

Socioenvironmental change as a process: Changing foodways as adaptation to climate change in South Greece from the Late Bronze Age to the Early Iron Age

Recent interest in modern climate change has stimulated extensive scientific study into past societal responses to climate variability. However, examining climate change and society as a historical narrative drawing upon politics, economics, and settlement patterns does not provide a direct link between climate and society. Given that most inhabitants of the premodern world engaged in agriculture and/or pastoralism, examining chronological correlations between climate and foodways, not as a historical narrative but as a longterm socioenvironmental process, has the potential to identify direct societal adaptations to a changing environment.From South Greece there is evidence for drier conditions at the end of the Late Bronze Age. Is the disappearance of writing, art, and many known settlements at the end of the Bronze Age an example of collapse in the face of inability to adapt to climate change? This is a difficult question to answer given the coarse resolution of many of our archaeological and climatic datasets. Settlement faunal records suggest that food production systems became increasingly homogenous in Late Bronze Age Greece, potentially due to an elite control over various production systems that promoted intensification of certain products. However, in the first millennium B.C.E., animal husbandry, specifically, and food production systems, more broadly, became more heterogenous, and a proportional increase in goats in areas with less rainfall was likely an adaptive response to the drier climate. This paper examines the adaptive relationship between foodways and climate and argues for a process driven approach when explaining social responses to ancient climate change.

Clinicopathological Effects of Oral Administration of Ethanol Leaf Extract of Charcoal–Tree (Trema Orientalis Linn Blume) in Jamnapari Crossbred Goats

The present study was aimed at evaluating the clinicopathological changes due to oral administration of ethanol leaf extract of Trema orientalis (ELETO) in Jamnapari crossbred goats. The clinical manifestations, gross and histopathological changes in the major vital organs were used as indices of the toxicity. The severity of gross and microscopic changes were evaluated by scoring technique. Twenty goats weighing between 15-20kg were divided into four groups with five goats in each group in a completely randomized design. The test groups I, II, III were administered ELETO at the dosages of 0.5, 1.0 and 2.0g/kg b.wt per os/day respectively, for 14 days while, group IV served as a control. Groups II and III showed decreased appetite whereas, group III showed bilateral congestion of ocular mucous membrane, lacrimation, rectal tenesmus and a significant decrease in body weight compared to control. The main gross and microscopic changes were mild to moderate and included; engorgement of the gall bladder, congestion and icteric liver, hepatocellular degeneration, vacuolation, necrosis and renal congestion observed mainly in group III goats. The results indicate that the ELETO was hepatotoxic and nephrotoxic at continued oral doses equal to or more than 2.0g/kg b.wt in goats but no significant toxicity when used at lowers doses. Therefore, special caution should be taken when keeping goats in areas with T. orientalis.
 Keywords: Ethanol extract, Trema orientalis, Clinicopathological changes, Goatsv

Morphological identification of adult male Haemonchus species in goats from Thailand and Lao PDR.

Haemonchus spp. or barber's pole worms are one of the most highly pathogenic nematodes of ruminants causing economic losses in livestock worldwide. The current study was a first attempt to identify Haemonchus spp. from goats in Thailand and Lao PDR. Utilizing the inexpensive tools of the discriminant function (DF) combined with synlophe patterns is fundamental for understanding their epidemiological aspects. In total, 255 randomly chosen adult male Haemonchus worms from goats in various areas in each country were identified individually. For both these countries, about 94% based on the DF values, and 99%, 98%, and 97% based on synlophe patterns in the region of the esophageal intestinal junction (EI), 4 mm from the anterior end, and at both these positions, respectively, were identified as H. contortus. Other identified specimens defined as H. placei and hybrids as well as unclassified species based on synlophe patterns were proved using polymerase chain reaction (PCR); this also included some randomly chosen H. contortus by DF and synlophe patterns. All those specimens were confirmed as H. contortus being strongly supported by some genetic evidences and UPGMA analysis. Thus, it was assumed that all specimens in the current study were H. contortus. The morphological differences of this predominant species (H. contortus) in goats between the two countries were: body length, gubernaculum length, and left spicule barb length, while almost all characters of male worms individually measured appeared to overlap, mostly in H. contortus and H. placei, which may lead to misclassification. Therefore, using the DF along with synlophe patterns can assist in increasing the accuracy of Haemonchus spp. identification from goats in some areas where funding is limited, particularly in Lao PDR. The present results revealed that synlophe patterns in the EI region seemed to be promising for the identification of Haemonchus spp., while molecular techniques are also required to address ambiguous identification with some specimens.

Farmer perceptions on factors influencing water scarcity for goats in resource-limited communal farming environments.

The objective of the study was to compare factors influencing water scarcity for goats in areas where there are seasonal and perennial rivers under resource-limited communal farming environments. Data were collected using a structured questionnaire (n = 285) administered randomly to smallholder goat farmers from areas with seasonal and perennial rivers. Ceremonies was ranked as the major reason for keeping goats. Water scarcity was ranked the major constraint to goat production in areas with seasonal rivers when compared to areas with perennial rivers (P < 0.05). Dams and rivers were ranked as the major water source for goat drinking in areas with seasonal and perennial river systems during cool dry and rainy seasons. Rivers were ranked as an important water source for goat drinking where there are seasonal and perennial river systems during the cool dry season. Households located close (≤ 3km) to the nearest water source reported drinking water for goats a scarce resource. These results show that river systems, season and distance to the nearest water source from a household were factors perceived by farmers to influence water scarcity for goats in resource-limited communal farming environments. Farmers should explore water-saving strategies such as recycling wastewater from kitchens and bathrooms as an alternative water source. The government may assist farmers through sinking boreholes to supply water for both humans and livestock.

Potential disease agents in domestic goats and relevance to bighorn sheep (Ovis canadensis) management.

Domestic goats are raised for meat, milk and hair production, in herds for rangeland weed control, and as pack animals. Domestic sheep, goats and wild bighorn sheep are all susceptible to a multifactorial pneumonia. We sampled 43 herd goats from 7 herds and 48 pack goats from 11 herds for viral and bacterial serology, parasitology, and Pasteurellaceae microbiology. The goats in this study were in generally good health, although most goats did harbor various pathogens and parasites including several bacteria, specifically Pasteurellaceae, which have been associated with pneumonia in free-ranging bighorn sheep. It is not known if domestic goats can transmit the Pasteurellaceae or other pathogens found in this study readily to wild bighorn sheep. However, due the possibility of transmission, domestic goats in areas in or near bighorn sheep habitat should be managed to minimize the risk of spreading disease agents to bighorn sheep.

Prevalence and risk factors for brucellosis in goats in areas of Mexico with and without brucellosis control campaign

Brucellosis is a major constraint for small-scale goat farming systems in Mexico. This study estimated the prevalence of testing positive to brucellosis and identified and quantified risk factors in goats from small-scale farms of Michoacán that had participated in a brucellosis campaign (i.e. vaccination, serological testing, culling and awareness) and of Jalisco that had negligible brucellosis campaign participation. A cross-sectional serological survey was conducted among 1,713 goats of 83 flocks. The prevalence of testing positive to brucellosis was higher (38%) in Jalisco than in Michoacán (11%). Logistic regression analysis indicated that goats from Michoacán had lower odds to test positive for brucellosis (odds ratio (OR) = 0.32, 95% confidence interval (CI) 0.21-0.48) compared to goats from Jalisco. Goats in zero-grazing systems had lower odds than goats in grazing systems (OR = 0.22, 95% CI 0.09-0.57). When goats were kept in pens with low density (0.002 to 0.22 goat/m(2)), odds was lower (OR = 0.44, 95% CI 0.28-0.67) compared to goats kept in pens with higher density (0.23 to 1 goat/m(2)). Odds was higher for testing positive when farmers bought goats from goat traders (OR = 1.82, 95% CI 1.15-2.87) compared to farmers who did not. If scavenger poultry had access to goat pens, the odds was half (OR = 0.52, 95% CI 0.33-0.83) of those where poultry had no access. Regular disinfection of the pen reduced the odds (OR = 0.66, 95% CI 0.44-0.99) compared to where disinfection was not regular. The brucellosis control campaign was effective in reducing brucellosis seropositivity.

Wintering strategies by mountain goats in interior mountains

As with many ungulates inhabiting areas with potentially deep snow, winter is an important season for mountain goats ( Oreamnos americanus (de Blainville, 1816)) and is characterized by restricted movements and high juvenile mortality. We examined winter habitat selection and wintering strategies by mountain goats in two adjacent areas of southeastern British Columbia characterized by deep, moist snow and by shallow, dry snow. Fifteen GPS collars were placed on mountain goats in each area over two winters. Winter-range size did not differ between areas and comprised, on average, 2.2%–7.4% of male home range and 8.0%–14.1% of female home range. Topographic variables dominated habitat model selection. At the broad scale, mountain goats in both areas selected winter ranges closer to escape terrain on warmer aspects that contained lesser amounts of mature dense forest. At the fine scale, mountain goats in both areas selected rugged habitat at upper mid-elevations and on warmer aspects. Alpine areas were avoided in the deep snow area and selected in the shallow snow area. No selection for mature forests was observed in either area. Mountain goats, therefore, appeared to utilize open, high-elevation habitats in shallow snow zones, but they did not seek reduced snow levels in mature forest stands in deep snow areas.

Ixodid ticks infesting domestic goats in communal land areas of Zimbabwe

The purpose of this study was to determine the species spectrum of ticks infesting goats owned by resource-limited farmers in the state-owned communal land areas of Zimbabwe. Ticks were collected from goats at a single locality within each of 5 communal land areas, and a total of 14 ixodid tick species was recovered. The most numerous tick was Rhipicephalus evertsi evertsi, which was present in all areas at each sampling, and a Rhipicephalus sp. (near R. punctatus), which was most abundant on goats in the central regions of Zimbabwe during the March rainy season. Amblyomma hebraeum was present on goats in all areas sampled. In the eastern central region its distribution overlapped that of Amblyomma variegatum, while in the northwest it overlapped those of both Amblyomma marmoreum and A. variegatum. Hyalomma truncatum was present at all localities, whereas only a single Hyalomma rufipes was recovered. Rhipicephalus appendiculatus was collected from goats in the moist, slightly cooler regions, while the few Rhipicephalus zambeziensis recovered were present in the hotter, drier regions. Species recorded in lower numbers were Rhipicephalus (Boophilus) decoloratus, Rhipicephalus lunulatus, Rhipicephalus simus, Rhipicephalus tricuspis and Rhipicephalus turanicus. Attachment in the inter-digital space of adult A. hebreaum and H. truncatum was sometimes associated with lameness.

Natural Infection of Domestic Goats with Ehrlichia chaffeensis

Thirty-eight domestic goats from an area of Ehrlichia chaffeensis endemicity were tested for antibodies reactive to E. chaffeensis and for E. chaffeensis-specific 16S rRNA gene fragments by an indirect fluorescent antibody test and a nested PCR assay, respectively. Twenty-eight of 38 (73.7%) goats had antibodies reactive to E. chaffeensis (>/=1:128), and 6 of 38 (15.8%) goats were positive by diagnostic PCR; E. chaffeensis was isolated in cell culture from one goat. Our data indicate that goats in areas of endemicity are naturally exposed to and infected with E. chaffeensis.

Seroprevalence of brucellosis in a few important Indian goat breeds

Caprine brucellosis is an endemic disease and is present in many countries. It causes heavy losses in goats and is transmissible to man. Assessment of incidence of the disease was seen in pure-bred goats (Jamunapari, Barbari and Beetal) of breeding age belonging to 241 farmers of 143 villages of seven districts of U.P. and Punjab, India. Rapid, easy, and field-based qualitative dot-Enzyme linked immunosorbent assay was used, for the first time in India, in the screening of field goats. Reactors in dot-Elisa were further tested with standard tube agglutination test (SAT). Incidence of brucellosis in farmers' goat flocks was 0.8%. Incidence in organized state government goat farms was 4.9%. Incidence in goats slaughtered in local goat abattoir in Agra (U.P.) was 7.1%. The overall incidence of brucellosis in goats in areas surveyed was 4.0%. Dot-Elisa was found to be rapid, handy and suitable screening test in the field for the diagnosis of brucellosis in goats.

Protein and energy value of pearl millet grain for mature goats.

We conducted two studies to assess the protein and energy value of pearl millet grain (Pennisetum glaucum [L.] R. Br.) for mature goats. In Exp. 1, 15 2-yr-old male castrated goats were gradually introduced over a 4-mo period to three all-grain diets consisting of 100% corn (Zea mays L.), 50:50 corn:pearl millet, and 100% pearl millet. After the adjustment to all-grain feeds, the goats were fed the diets in metabolism crates for 2-d adjustment and 7-d total collection periods. For Exp. 2, complete diets containing the three grain treatments (corn, 50:50 corn:pearl millet, and pearl millet) as 40% of the total DM as fed (the remainder was mainly alfalfa meal and mineral supplement) were balanced to contain 16% crude protein (CP) and 2.24 Mcal digestible energy (DE)/kg on an air-dry basis. Twelve mature (4- to 6-yr-old) buck goats were randomly assigned to diets and fed in pens for 14 d and then moved to metabolism crates for 10-d adjustment and 10-d total collection periods. In Exp. 1, DM intake was unaffected by dietary treatment, but digestibility of DM and organic matter was lowest (P < .10) in goats fed 100% pearl millet. Digestibility of complete diets also decreased (P < .10) as corn was replaced by 50 or 100% pearl millet, but DM intake increased (P < .10) on the 100% millet diet. In both experiments, substituting pearl millet for corn had no effect on nitrogen retained by the goats. Metabolizable energy of pearl millet was only 92% that of corn, but ME intake was similar when the grains were fed as 40% of the dietary DM. Pearl millet has potential as a major energy feed for goats in areas where it can be economically produced.