Modeling of spatial distribution for scorpions of medical importance in the São Paulo State, Brazil

Research (Published online: 07-07-2015)

2.  Modeling of spatial distribution for scorpions of medical importance in the São Paulo State, Brazil - José Brites-Neto and Keila Maria Roncato Duarte

Veterinary World, 8(7): 823-830

   doi: 10.14202/vetworld.2015.823-830

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Abstract

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Aim: In this work, we aimed to develop maps of modeling geographic distribution correlating to environmental suitability for the two species of scorpions of medical importance at São Paulo State and to develop spatial configuration parameters for epidemiological surveillance of these species of venomous animals.

Materials and Methods: In this study, 54 georeferenced points for Tityus serrulatus and 86 points for Tityus bahiensis and eight environmental indicators, were used to generate species distribution models in Maxent (maximum entropy modeling of species geographic distributions) version 3.3.3k using 70% of data for training (n=38 to T. serrulatus and n=60 to T. bahiensis) and 30% to test the models (n=16 for T. serrulatus and n=26 for T. bahiensis). The logistic threshold used to cut models in converting the continuous probability model into a binary model was the “maximum test sensitivity plus specificity,” provided by Maxent, with results of 0.4143 toT. serrulatus and of 0.3401 to T. bahiensis. The models were evaluated by the area under the curve (AUC), using the omission error and the binomial probability. With the data generated by Maxent, distribution maps were produced using the “ESRI® ArcGIS 10.2.2 for Desktop” software.

Results: The models had high predictive success (AUC=0.7698±0.0533, omission error=0.2467 and p<0.001 for T. serrulatus and AUC=0.8205±0.0390, omission error=0.1917 and p<0.001 for T. bahiensis) and the resultant maps showed a high environmental suitability in the north, central, and southeast of the state, confirming the increasing spread of these species. The environmental variables that mostly contributed to the scorpions species distribution model were rain precipitation (28.9%) and tree cover (28.2%) for the T. serrulatus and temperature (45.8%) and thermal amplitude (12.6%) for the T. bahiensis.

Conclusion: The distribution model of these species of medical importance scorpions in São Paulo State revealed a higher environmental suitability of these species in the regions north, central, and southeast of the state, warning to emergencies actions for prevention and surveillance from scorpion stings in several counties. There is also a need to best conservation strategies related to neighboring territories, with the implementation of new environmental protected areas and measures of spread control of these species in urban areas of several counties.

Keywords: binomial probability, environmental variable, georeferencing, maxent, Tityus bahiensis, Tityus serrulatus.

Diagnosis of urinary bladder diseases in dogs by using two-dimensional and three-dimensional ultrasonography

Research (Published online: 07-07-2015)

1.  Diagnosis of urinary bladder diseases in dogs by using two-dimensional and three-dimensional ultrasonography - Dinesh Dehmiwal, S.M.Behl, Prem Singh, Rishi Tayal, Madan Pal and R.K.Chandolia

Veterinary World, 8(7): 819-822

   doi: 10.14202/vetworld.2015.819-822

Abstract

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Aim: The objective of this study was to obtain and compare two-dimensional (2D) and three-dimensional (3D) ultrasonographic images of the urinary bladder in different disease conditions.

Materials and Methods: The present study was conducting on total 10clinical cases of the urinary bladder in dogs. The ultrasound (US) machine used for this study was 3D US machine (Nemio-XG: Toshiba, Japan) having a four-dimensional volumetric probe.

Results: In the present study, the inflamed thickened wall was clearly visible with the distinction of different layers of the urinary bladder wall in some of the cases of cystitis using 2D ultrasonography. In 3D sonogram, the urinary bladder was visualized as a large anechoic structure with no distinction of different layers of the bladder wall. The cystoliths were clearly visible as hyperechoic structures with distal acoustic shadow in 2D sonogram and appeared as a bright echogenic area in 3D sonogram. In case of urinary bladder neoplasia in 2D ultrasonogram, the bladder lumen was found to be occluded with a large growth imaged as focal anechoic areas in the tissue of mixed echogenicity with small hyperechoic dots in this tissue parenchyma. In 3D ultrasonogram, a tissue of mixed echogenicity of pus was also observed.

Conclusion: From the present study it was concluded that 2D and 3D ultrasonography is very helpful for diagnosis of different clinical conditions of the urinary bladder such as cystitis, cystoliths, and urinary bladder neoplasia. The cavity of urinary bladder was more clearly visualized in 3D ultrasonography, but the distinction of different layers of the bladder wall was visualized only in 2D ultrasonography. The distinct shadow of pus and cystoliths were visible in 2D ultrasonogram. The visualization of pus in 3D ultrasonography was done for the first time in present study.

Keywords: anechoic, cystitis, cystoliths, hyperechoic, hypoechoic, neoplasia, ultrasonography.

Hematocrit alterations and its effects in naturally infected indigenous cattle breeds due to Trypanosoma spp. on the Adamawa Plateau - Cameroon

Research (Published online: 30-06-2015)

22.  Hematocrit alterations and its effects in naturally infected indigenous cattle breeds due to Trypanosoma spp. on the Adamawa Plateau - Cameroon  - A. Mamoudou, V. K. Payne and S. L. Sevidzem

Veterinary World, 8(6): 813-818

   doi: 10.14202/vetworld.2015.813-818

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Abstract

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Aim: An experimental study was carried out on 148 naturally infected indigenous cattle breeds with either single or mix infections of various species of trypanosomes. The objectives of this study were to determine the species of trypanosomes, observe their hematopathological consequences on host-related risk factors and to determine the packed cell volume (PCV) of the infected group.

Materials and Methods: The buffy coat method (BCM) which is a variant of the hematocrit centrifugation method was used for the parasitological and hematological analysis. The May Grünwald-Giemsa method was also used for the identification of different trypanosome species.

Results: The infection rate in accordance with the various trypanosomes was as follows: Trypanosoma congolense + Trypanosoma brucei (1.35%), Trypanosoma vivax + T. brucei (1.35%), T. congolense + T. vivax (8.11%), T. congolense + T. vivax + T. brucei(8.78%), T. brucei brucei (11.48%), T. vivax (20.94%), T. congolense (47.97%). The infection rate with respect to breeds showed the following results - Brahman (1.0%), Red Fulani (5.2%), White Fulani (6.5%) and Gudali (16.7%), with no statistical significant difference (p>0.05). The combined mean PCV of single as well as mix infections was not statistically significant (p>0.05). The mean PCV of males (25.64±5.08 standard deviation [SD]) which was lower than that of females (30.82±4.94 SD) was statistically significant (p<0.05). The body condition of infected animals with sex showed that a greater proportion of males with "Poor" and "Medium" conditions showed high prevalence than females with the same conditions, with a significant difference (p<0.05). However, females showed a "Good" condition than males even though it was not statistically significant (p>0.05). The PCV profile of the infected group showed that the highest proportion of infected animals had PCV of ≤31% than PCV >31%. The mean weight of the animals was (265.41±95.36 SD). A scatter-linear plot of infected buffy coat against mean PCV showed a negative parametric correlation.

Conclusion: Distinguished Trypanosoma spp. pathogenicity, emaciation and weight loss related anemia, poor body condition, sex and the response of different breeds to various trypanosomes were highly affected and are of vital importance in diagnosis and act as a contribution to future control and treatment plans in this area.

Keywords: hematocrit, buffy coat method, body condition, anemia, trypanosome, breed, cattle, Adamaoua Plateau - Cameroon.

Effect of supplementation of butylated hydroxytoluene on post-thaw sperm viability, motility and membrane integrity of Hariana bulls

Research (Published online: 30-06-2015)

21.  Effect of supplementation of butylated hydroxytoluene on post-thaw sperm viability, motility and membrane integrity of Hariana bulls- Akhil Patel, Atul Saxena, Dilip Kumar Swain, Dushyant Yadav, Sanjay Singh Yadav, Abhishek Kumar and Anuj Kumar

Veterinary World, 8(6): 808-812

   doi: 10.14202/vetworld.2015.808-812

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Abstract

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Aim: This study was aimed to see the beneficial effect of butylated hydroxytoluene (BHT) as a semen additive of Hariana bull semen.

Materials and Methods: The study was carried out in Hariana bulls. Twenty-four ejaculates from two bulls were used for this study. Each ejaculate was extended with standard glycerolated egg yolk tris extender and supplemented with BHT at two concentrations as 0.5 mM (T1) and 1.0 mM (T2). After dilution, equilibration and 24 h of cryopreservation, the samples were analyzed for progressive motility, sperm viability and membrane integrity.

Results: Progressive motility, sperm viability and sperm membrane integrity were significantly (p<0.05) increased in the samples fortified with BHT as compared to the control during the process of cryopreservation and thawing. The BHT concentration of 1 mM revealed better results as compared to 0.5 mM.

Conclusion: Addition of 1.0 mM BHT was found better in cryopreservation of Hariana bull semen compared to 0.5 mM BHT and control samples. The addition of BHT has improved the sperm quality by acting as an antioxidant thereby reducing the lipid peroxidation of the sperms.

Keywords: sperm, viability, butylated hydroxytoluene, membrane integrity, antioxidant, Hariana bull.

A comparative therapeutic management of anoestrus in buffaloes using insulin and GnRH

Research (Published online: 30-06-2015)

20.  A comparative therapeutic management of anoestrus in buffaloes using insulin and GnRH - R. D. Purkayastha, S. N. Shukla, O. P. Shrivastava and P. R. Kumar

Veterinary World, 8(6): 804-807

   doi: 10.14202/vetworld.2015.804-807

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Abstract

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Aim: Anoestrus is one of the most common functional disorders of the reproductive cycle in buffaloes. In spite of technical advancement, there is no single cure for the management of anoestrus. Therefore, the aim of this study was to find out the efficacy of gonadotropic releasing hormone (GnRH) and metabolic hormone for the management of true anoestrus in buffaloes.

Materials and Methods: The experimental animals were selected on the basis of history, gyneco-clinical examinations and progesterone estimation. Deworming was done with Fenbendazole and thereafter mineral mixture was given @ 50 g per animal per day for 10 days in all the selected buffaloes before the start of treatment. The selected buffaloes were randomly divided into four groups (n=25). In Group I, buffaloes were administered 20 μg of buserelin intramuscularly. Buffaloes of Group II were administered long-acting insulin @ 0.25 IU/Kg body weight subcutaneously for 5 consecutive days. In Group III, buffaloes were treated with a combination of insulin and buserelin in the above-mentioned doses whereas buffaloes of Group IV were kept as untreated control.

Results: The higher oestrus induction (64% vs. 28%) was found in Group III and differed significantly (p<0.05) as compared to control group. The conception rate (69.23% vs. 66.66%) was also found higher in Group III but did not differ significantly among the treated groups. The mean time taken for the onset of oestrus was recorded significantly shorter in insulin (8.80±0.69) and GnRH (7.60±0.92 days) alone and as compared to other (Group III, 14.43±0.83 and Group IV, 20.57±1.69 days) groups.

Conclusion: The results of this study indicated better fertility response using Insulin plus Buserelin in true anoestrus buffaloes under field conditions.

Keywords: anoestrus, buffalo, buserelin, gonadotropic releasing hormone, insulin.

Effect of preputial washing on bacterial load and preservability of semen in Murrah buffalo bulls

Research (Published online: 28-06-2015)

19.  Effect of preputial washing on bacterial load and preservability of semen in Murrah buffalo bulls - G. S. Meena, V. S. Raina, A. K. Gupta, T. K. Mohanty, M. Bhakat, M. Abdullah and R. Bishist

Veterinary World, 8(6): 798-803

   doi: 10.14202/vetworld.2015.798-803

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Abstract

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Aim: To study the effect of preputial washing on bacterial load, preservability and semen quality in Murrah buffalo bulls

Materials and Methods: A total of 36 collections of three Murrah buffalo bulls maintained at Artificial Breeding Research Centre, ICAR-National Dairy Research Institute, Karnal, were collected at weekly intervals from each bull without preputial washing and latter ejaculates from same bull with preputial washing by infusing normal saline (0.85%), KMnO4 (0.02%) and savlon (2.0%) to first, second and third bull, respectively. The microbial load and semen quality were evaluated during different hours of storage at refrigerated temperature (0, 24 and 48 h) and after thrawing of cryopreserved (at −196°C) semen.

Results: The results of preservation of semen at refrigerated temperature showed that bacterial load was markedly lower in ejaculates of bulls subjected to preputial washing. Semen preserved at refrigerator temperature and cryopreserved, the effect of washing solution was significant for individual motility (IM), non-eosiniphilic count, hypo-osmotic swelling reactivity (HOST), total plate count (TPC) and acrosome integrity. KMnO4 was found to be the best in lowering bacterial load, sperm abnormalities and in improving semen quality such as motility, non-eosinophilic count, HOST and acrosome integrity even up to 48 h of preservation and cryopreserved semen. Effect of duration of preservation and stage of cryopreservation was also significant for IM, non-eosiniphilic count, HOST, sperm abnormalities and acrosome integrity.

Conclusion: Overall the results suggested that preputial washing with KMnO4 solution improved the semen quality and reduced microbial load of Murrah buffalo bull’s semen preserved at refrigerated temperature and cryopreservation.

Keywords: preputial washing, bacterial load, semen quality, preservability, Murrah buffalo bull.

Effect of feeding sugarcane press mud on carcass traits and meat quality characteristics of lambs

Research (Published online: 28-06-2015)

18.  Effect of feeding sugarcane press mud on carcass traits and meat quality characteristics of lambs - Ranjan Kumar, Subodh Kumar Saha and Sanjod Kumar Mendiratta

Veterinary World, 8(6): 793-797

   doi: 10.14202/vetworld.2015.793-797

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Abstract

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Aim: To explore the possibilities of feeding unconventional agro-industrial byproduct for livestock production. Sugarcane press-mud (SPM), is a byproduct derived from sugarcane industry, which is rich in protein as well as minerals. The effects of dietary inclusion of SPM at different levels on the carcass characteristics of lambs were evaluated.

Materials and Methods: SPM was incorporated in concentrate mixture at different levels 0% (SP0 - concentrate mixture without SPM [Control diet]), 10% (SP10 - concentrate mixture containing 10% SPM) and 20% (SP20 - concentrate mixture containing 20% SPM). The concentrate mixtures were fed along with wheat straw for 180 days. At the end of the experimental period, six lambs per group were slaughtered to evaluate carcass and meat quality characteristics.

Results: No significant difference was observed in dressing percentage on pre-slaughter weight or empty body weight basis of lambs fed different levels of SPM incorporated diets. Likewise carcass weight, carcass length, and wholesale cuts appeared to have similar values among groups. The yield of visceral organs, chemical composition, and sensory attributes were not statistically affected by inclusion of SPM in the diets except juiciness of control group meat was significantly (p<0.05) higher than treatment group (SP20).

Conclusion: The SPM can be incorporated in the diet of lambs up to the level of 20% without affecting the carcass characteristics of lambs.

Keywords: carcass characteristics, lambs, sensory attributes, sugarcane press-mud.