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Intestinal diverticula in a domestic rabbit (Oryctolagus cuniculus) 家兔的肠憩室
Emerging Animal Species Pub Date : 2024-10-05 DOI: 10.1016/j.eas.2024.100051
Ferran Bargalló Saumell , Irina Camins Sánchez , Jesús Cuesta Gerveno
{"title":"Intestinal diverticula in a domestic rabbit (Oryctolagus cuniculus)","authors":"Ferran Bargalló Saumell ,&nbsp;Irina Camins Sánchez ,&nbsp;Jesús Cuesta Gerveno","doi":"10.1016/j.eas.2024.100051","DOIUrl":"10.1016/j.eas.2024.100051","url":null,"abstract":"<div><div>Intestinal diverticula are a well-documented phenomenon in humans, but their occurrence and characteristics in domestic rabbits remain underexplored. While pseudodiverticula have been reported in rabbit species, true diverticula—with all layers from mucosa to serosa—are yet to be described. This case report presents a 3-yearold neutered female rabbit with an unusual presentation of true diverticula in the jejunum, leading to diverticulitis and partial intestinal obstruction.</div></div>","PeriodicalId":100464,"journal":{"name":"Emerging Animal Species","volume":"11 ","pages":"Article 100051"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Suspected encrusting cystitis in a domestic ferret (Mustela putorius furo) 家养雪貂(Mustela putorius furo)的疑似包膜膀胱炎
Emerging Animal Species Pub Date : 2024-10-04 DOI: 10.1016/j.eas.2024.100050
Skylar Gray , Sara Gardhouse , Kara Hiebert , Anastasia McHaney
{"title":"Suspected encrusting cystitis in a domestic ferret (Mustela putorius furo)","authors":"Skylar Gray ,&nbsp;Sara Gardhouse ,&nbsp;Kara Hiebert ,&nbsp;Anastasia McHaney","doi":"10.1016/j.eas.2024.100050","DOIUrl":"10.1016/j.eas.2024.100050","url":null,"abstract":"<div><h3>Background</h3><div>Encrusting cystitis diagnosis and medical management in domestic ferrets (<em>Mustela putorius furo</em>) has never been documented.</div></div><div><h3>Case description</h3><div>A client-owned, 6.5-year-old, neutered, male domestic ferret was presented for lethargy, abdominal pain, straining to urinate for 12 days, and red, purulent urine. On physical examination, the ferret was quiet, alert, and responsive, had a distended and inexpressible bladder, large and firm kidneys, and was displaying signs of severe pain including vocalization on abdominal palpation and when attempting to urinate. Sonographic evaluation showed an irregular, layered, hyperechoic mass lesion present in the lumen of the urinary bladder with extensions of the layered luminal material into the urethra, and severely dilated renal pelves and ureters. These severe, urinary bladder changes were consistent with pseudomembranous, encrusting cystitis. Following a discussion with the owner about options for humane euthanasia versus exploratory surgery, euthanasia was elected. The remains were taken home with the owner and a necropsy was not performed.</div></div><div><h3>Conclusion and case relevance</h3><div>To the author’s knowledge, this paper reports the first known case of suspected encrusting cystitis in a domestic ferret including radiologic and ultrasonographic findings.</div></div>","PeriodicalId":100464,"journal":{"name":"Emerging Animal Species","volume":"11 ","pages":"Article 100050"},"PeriodicalIF":0.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of prenatal exposure to pequi oil and 17α-Ethinylestradiol on folliculogenesis in gerbil (Meriones unguiculatus) ovaries 产前接触 pequi 油和 17α-Ethinylestradiol 对沙鼠(Meriones unguiculatus)卵巢卵泡生成的影响
Emerging Animal Species Pub Date : 2024-09-04 DOI: 10.1016/j.eas.2024.100049
Daniele Camargo da Silva , Juan Felipe Galvão da Silva , Jardel de Almeida Monteiro , João Gabriel de Moura , Patrícia Matias Carvalho e Silva , Ana Paula da Silva Perez
{"title":"Effects of prenatal exposure to pequi oil and 17α-Ethinylestradiol on folliculogenesis in gerbil (Meriones unguiculatus) ovaries","authors":"Daniele Camargo da Silva ,&nbsp;Juan Felipe Galvão da Silva ,&nbsp;Jardel de Almeida Monteiro ,&nbsp;João Gabriel de Moura ,&nbsp;Patrícia Matias Carvalho e Silva ,&nbsp;Ana Paula da Silva Perez","doi":"10.1016/j.eas.2024.100049","DOIUrl":"10.1016/j.eas.2024.100049","url":null,"abstract":"<div><p>Exposure to 17α-ethinylestradiol (EE2), a synthetic estrogen, during the developmental period has been found to induce pathological changes in the morphology and function of the gerbil ovary. However, the extract of pequi oil from the fruit <em>Caryocar brasiliense Cambess</em> exhibits anti-inflammatory, antifungal, and anticarcinogenic properties. This study aimed to assess the effects of prenatal exposure to pequi oil and EE2 on ovarian folliculogenesis in gerbils. Pregnant female gerbils were divided into five groups: <em>Control</em>; <em>EE<sub>2</sub></em>, which received <em>EE<sub>2</sub></em> (15 µg/kg/day) during gestation; Vehicle (<em>Ve</em>), which received only the vehicle; <em>EE<sub>2</sub>/Pe</em>, which received EE2 and pequi oil (300 mg/kg); and <em>Pe</em>, which received only pequi oil. Female offspring were euthanized at 12 months of age, and their ovaries underwent histological processing. Body and ovarian weights remained unchanged in this study. However, the experimental groups showed a decrease in the number of primordial follicles compared to the control group. Notably, the EE2/Pe group exhibited an increase in the number of secondary follicles compared to the other groups. Statistical analysis revealed significant differences in the number of atretic follicles among the groups, with both the <em>EE<sub>2</sub>/Pe</em> and <em>Pe</em> groups exhibiting the highest numbers of atretic follicles. In summary, the detrimental effects on ovarian morphophysiology induced by EE2 exposure during pregnancy were evidenced by a global reduction in ovarian follicles and an increase in the number of atretic follicles. Consequently, the indiscriminate use of endocrine disruptors, particularly during pregnancy, can lead to significant alterations in the ovarian reserve.</p></div>","PeriodicalId":100464,"journal":{"name":"Emerging Animal Species","volume":"11 ","pages":"Article 100049"},"PeriodicalIF":0.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277281372400009X/pdfft?md5=089da21a5180870ec745a8ece5747a30&pid=1-s2.0-S277281372400009X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142162170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pathology of coccidiosis in budgerigars (Melopsittacus undulatus) 虎皮鹦鹉球虫病的病理变化
Emerging Animal Species Pub Date : 2024-07-21 DOI: 10.1016/j.eas.2024.100048
D. Soundhariyaa, R. Kumar, S. Poobitha, S. Uma, A.W. Lakkawar, M.G. Nair
{"title":"Pathology of coccidiosis in budgerigars (Melopsittacus undulatus)","authors":"D. Soundhariyaa,&nbsp;R. Kumar,&nbsp;S. Poobitha,&nbsp;S. Uma,&nbsp;A.W. Lakkawar,&nbsp;M.G. Nair","doi":"10.1016/j.eas.2024.100048","DOIUrl":"10.1016/j.eas.2024.100048","url":null,"abstract":"<div><p>The present study was carried out to describe the occurrence and pathological findings in infections with <em>Eimeria</em> spp. in budgerigars. Postmortem examination was conducted on the carcasses of 32 Budgerigars received from various pet shops, pet bird breeders and pet bird owners of Puducherry. The budgerigars were of either sex and their age ranged from 1 to 5 years. The reported clinical signs were anorexia, lethargy, loss of body weight and diarrhoea. Coccidiosis was diagnosed in 46.87 % (15/32) of the cases. Gross features were localized in the small intestine and included serosal congestion, catarrhal, haemorrhagic and necrotic enteritis. The intestinal scraping revealed oocysts of <em>Eimeria</em> spp. Histological examination of various portions of the small intestines revealed catarrhal, haemorrhagic or necrotising enteritis and the developmental stages of <em>Eimeria</em> spp. in the intestinal and the crypt epithelium and also in the lumen of the intestine. Other changes were crypt cell proliferation and mononuclear cell infiltration.</p></div>","PeriodicalId":100464,"journal":{"name":"Emerging Animal Species","volume":"11 ","pages":"Article 100048"},"PeriodicalIF":0.0,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772813724000088/pdfft?md5=837e91cd95aa3739174e9879630bc8cd&pid=1-s2.0-S2772813724000088-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141949728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nutritional value of meat from selected neotropical reptiles 某些新热带爬行动物肉类的营养价值
Emerging Animal Species Pub Date : 2024-05-09 DOI: 10.1016/j.eas.2024.100046
Eden Natalia John , Kegan Romelle Jones
{"title":"Nutritional value of meat from selected neotropical reptiles","authors":"Eden Natalia John ,&nbsp;Kegan Romelle Jones","doi":"10.1016/j.eas.2024.100046","DOIUrl":"https://doi.org/10.1016/j.eas.2024.100046","url":null,"abstract":"<div><p>This is the second part of a two-part review. The first part focused on the nutritive value of meat and meat products of selected neo-tropical mammals with the potential for domestication. The objective of this current review was to investigate the nutritional qualities and carcass traits of selected neotropical reptiles compared to domestic species, focusing on the spectacled caiman, iguana, tegu, and yellow anaconda. Carcass weight analysis revealed that the spectacled caiman and male iguana were efficient converters of live weight to edible carcass weight, with higher yields than other reptiles. Among domestic species, pigs and chickens showed higher carcass yields compared to cattle and lamb. Moisture content in reptile meat was generally higher than in domestic animals, impacting texture and juiciness. Protein content was lower in reptiles but still contributed to daily requirements, while fat content, though generally lower in reptiles, could impact flavor and tenderness. Cholesterol levels were lower in reptiles, particularly the yellow anaconda, making them potentially healthier options for those with cardiovascular concerns. Fatty acid composition analysis indicated varying levels of saturated, monounsaturated, and polyunsaturated fatty acids, with potential cardiovascular health benefits in reptile meats. Amino acid content, though lower in reptiles compared to domestic species, provided essential building blocks for various physiological functions. Overall, the study highlighted the nutritional value and potential health benefits of including neotropical reptile meat in the human diet, especially as alternative protein sources.</p></div>","PeriodicalId":100464,"journal":{"name":"Emerging Animal Species","volume":"10 ","pages":"Article 100046"},"PeriodicalIF":0.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772813724000064/pdfft?md5=eb5218a6339b41e833425d45291065a8&pid=1-s2.0-S2772813724000064-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140906326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cardiac evaluation in free-ranging giant anteaters (Myrmecophaga tridactyla) in the Brazilian Cerrado 巴西塞拉多地区散养大食蚁兽(Myrmecophaga tridactyla)的心脏评估
Emerging Animal Species Pub Date : 2024-05-06 DOI: 10.1016/j.eas.2024.100045
Mario H. Alves , Grazielle C.G. Soresini , Janecler Q.A. Oliveira , Mario S.P. Tabosa , Rafael Ferraz de Barros , Juliana T.M. Mesquita , Arnaud L.J. Desbiez
{"title":"Cardiac evaluation in free-ranging giant anteaters (Myrmecophaga tridactyla) in the Brazilian Cerrado","authors":"Mario H. Alves ,&nbsp;Grazielle C.G. Soresini ,&nbsp;Janecler Q.A. Oliveira ,&nbsp;Mario S.P. Tabosa ,&nbsp;Rafael Ferraz de Barros ,&nbsp;Juliana T.M. Mesquita ,&nbsp;Arnaud L.J. Desbiez","doi":"10.1016/j.eas.2024.100045","DOIUrl":"https://doi.org/10.1016/j.eas.2024.100045","url":null,"abstract":"<div><p>The giant anteater (<em>Myrmecophaga tridactyla</em>) is classified as a Vulnerable species, but these animals are regularly brought into rescue centers and are also kept in zoos around the world. They occupy a highly specialized dietary niche with a feeding ecology that is difficult to replicate under human care. This can lead to numerous nutrition-related health problems, including frequent cardiomyopathies. Establishing reference parameters for free-ranging animals is an important tool to assess the health of animals under human care. For this reason, a cardiac assessment through plasma troponin I concentrations, vertebral heart score (VHS) based on thoracic radiographs, and echocardiographic parameters were established for 11 free-ranging giant anteaters in the Cerrado savanna of Mato Grosso do Sul, Brazil. The troponin I concentrations were all lower than 0.2 ng/ml, the cutoff limit for detection in the assay used. The mean VHS in the right lateral projections was 7.49, a value almost identical to cats (7.5) and lower than dogs (9.7). A complete echocardiographic assessment is provided and compared with previous case reports. This paper validates the diet-related origin hypothesis for common dilated cardiomyopathy in giant anteaters. This is the first published study with radiographic and echocardiographic parameters for free-ranging giant anteaters, providing important reference parameters for future giant anteater in situ and ex situ conservation initiatives. This work highlights the benefits of veterinary research comparing health parameters for animals living under and outside of human care.</p></div>","PeriodicalId":100464,"journal":{"name":"Emerging Animal Species","volume":"10 ","pages":"Article 100045"},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772813724000052/pdfft?md5=6e4941926d32c09e1c42f774bd37340e&pid=1-s2.0-S2772813724000052-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140893805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unraveling the promise of agroindustrial byproducts as alternative feed source for sustainable rabbit meat production 揭示农用工业副产品作为可持续兔肉生产替代饲料来源的前景
Emerging Animal Species Pub Date : 2024-04-21 DOI: 10.1016/j.eas.2024.100044
Kegan Romelle Jones , Sivakumar Karuppusamy , Venkatesan Sundaram
{"title":"Unraveling the promise of agroindustrial byproducts as alternative feed source for sustainable rabbit meat production","authors":"Kegan Romelle Jones ,&nbsp;Sivakumar Karuppusamy ,&nbsp;Venkatesan Sundaram","doi":"10.1016/j.eas.2024.100044","DOIUrl":"https://doi.org/10.1016/j.eas.2024.100044","url":null,"abstract":"<div><p>Agroindustrial byproducts have emerged as a promising alternative for sustainable rabbit meat production. This scoping review explores their enormous potential as an integral component of rabbit feed, covering several categories of byproducts, including fruit and food wastes, agricultural pulp wastes, cassava root byproducts, olive byproducts, crop residues, sun-dried brewer's grains, dried distillers grains and solubles, and fruit pomace. These byproducts provide significant benefits to rabbit farms by improving growth rates, feed conversion and overall performance when carefully incorporated into the diet. They serve as valuable sources of essential fiber, protein, and other nutrients and improve rabbit nutrition. While recognizing their nutrient richness, this report also highlights the importance of carefully considering optimal inclusion levels and processing methods to maximize benefits while minimizing potential negative impacts. Incorporating agro-industrial byproducts into rabbit diets not only holds promise for sustainable agriculture, but also improves meat quality. Continued research and experimentation are critical to refine their use and realize their full potential in rabbit production, furthering the overall goal of sustainability and efficiency in meat production.</p></div>","PeriodicalId":100464,"journal":{"name":"Emerging Animal Species","volume":"10 ","pages":"Article 100044"},"PeriodicalIF":0.0,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772813724000040/pdfft?md5=2dd469de9c89e6bdcd2d24d9dff22092&pid=1-s2.0-S2772813724000040-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140639382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of astragalus extract, levamisole and ascorbic acid on humoral immunity in chickens vaccinated with newcastle disease vaccines 黄芪提取物、左旋咪唑和抗坏血酸对接种新城疫疫苗鸡体液免疫的影响
Emerging Animal Species Pub Date : 2024-04-03 DOI: 10.1016/j.eas.2024.100043
Negedu Onogu Ameji , Luimommei Zethan Kpasham , Oludotun Olubusola Oladele , Adanu Williams Adanu , Essienifiok Saturday Unanam , Alexander Ray Jambalang
{"title":"Effects of astragalus extract, levamisole and ascorbic acid on humoral immunity in chickens vaccinated with newcastle disease vaccines","authors":"Negedu Onogu Ameji ,&nbsp;Luimommei Zethan Kpasham ,&nbsp;Oludotun Olubusola Oladele ,&nbsp;Adanu Williams Adanu ,&nbsp;Essienifiok Saturday Unanam ,&nbsp;Alexander Ray Jambalang","doi":"10.1016/j.eas.2024.100043","DOIUrl":"https://doi.org/10.1016/j.eas.2024.100043","url":null,"abstract":"<div><p>This study was designed to assess the effects of <em>Astragalus</em> extract, levamisole and ascorbic acid on the humoral immune response of chickens vaccinated with live and inactivated Newcastle Disease (ND) vaccines. Sixty day-old Cobb500 broiler chicks were used for the study. At day old, the maternally derived antibodies (MDA) to ND virus was determined and the chicks were then housed in a bio-secured pen with water and feed given ad-lib. On the sixth day, the MDA decay was determined thereafter, the chicks were shared into 4 treatment groups. Group A (<em>Astragalus</em> extract); Group B (levamisole); Group C (ascorbic acid) and Group D (Control) of 15 chicks each. Response to ND vaccinations was determined through bleeding to obtain sera for haemagglutination inhibition test at 7 and 14 days except for the second booster with inactivated <em>Komarov</em> vaccine where it was done at 7, 14 and 21 days post vaccination respectively. Antibody titres in the chicks 7 days post first dose of vaccination with <em>La Sota</em> was high in all the treatment groups above the control with 100 % of the chicks having protective antibody titre of ≥4 log<sub>2</sub> until day 30 when the antibody titres in all the groups dropped drastically following the second dose of live <em>La Sota</em> vaccination as the first booster vaccine. However, following the second booster with inactivated Komarov the antibody titres increased in all the treatment groups in comparison to the control especially in groups B and C with GMTs of 5.8 ± 0.19 log<sub>2</sub> and 6.1 ± 0.27 log<sub>2</sub> respectively. We observed that ascorbic acid and Levamisole may have humoral immuno-stimulating effects on vaccinated chickens through yet to be fully explored mechanism. It is recommended that ascorbic acid or levamisole could be used during vaccinations as immuno-stimulating agents to enhance humoral antibody response in vaccinated flocks.</p></div>","PeriodicalId":100464,"journal":{"name":"Emerging Animal Species","volume":"10 ","pages":"Article 100043"},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772813724000039/pdfft?md5=2d071c1f5f2ea63a01af0967ba30fa4a&pid=1-s2.0-S2772813724000039-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140350024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In-feed antiparasitic veterinary drug emamectin benzoate impairs acetylcholinesterase activity and brain tissue histoarchitecture of Oreochromis niloticus fry 饲料中的抗寄生虫兽药苯甲酸阿维菌素会损害尼罗河鱼苗的乙酰胆碱酯酶活性和脑组织结构
Emerging Animal Species Pub Date : 2024-01-22 DOI: 10.1016/j.eas.2024.100042
Thangapalam Jawahar Abraham , Jasmine Singha , Avishek Bardhan , Sutanu Karmakar , Ravindran Rajisha , Satyen Kumar Panda , Prasanna Kumar Patil
{"title":"In-feed antiparasitic veterinary drug emamectin benzoate impairs acetylcholinesterase activity and brain tissue histoarchitecture of Oreochromis niloticus fry","authors":"Thangapalam Jawahar Abraham ,&nbsp;Jasmine Singha ,&nbsp;Avishek Bardhan ,&nbsp;Sutanu Karmakar ,&nbsp;Ravindran Rajisha ,&nbsp;Satyen Kumar Panda ,&nbsp;Prasanna Kumar Patil","doi":"10.1016/j.eas.2024.100042","DOIUrl":"10.1016/j.eas.2024.100042","url":null,"abstract":"<div><p>Emamectin benzoate (EB) is an antiparasitic veterinary drug in temperate aquaculture to control ectoparasites. Research on its safety, tolerability and toxicity in tropical aquaculture is growing recently. This study examined the neurological and brain histopathological effects and the accumulation of tissue residues in all-male <em>Oreochromis niloticus</em> fry when fed top-coated EB feeds containing doses ranging from 50 to 500 µg/kg biomass/day for 14 days. A dose-dependent increase in mortalities (3.33–13.75 %) and inhibition in acetylcholinesterase activity (43.80–83.52 %) were documented. In the<!--> <!-->50-µg group, the muscle EB-residues peaked at 2.77 ng/g and then dropped after dose<!--> <!-->termination. Yet, traces of residues were demonstrable in the treated groups even after 21 days of cessation of EB feeding. Histologically, dose-dependent alterations like granular layer degeneration, spongiosis, necrotized areas in the stratum album centrale, stratum griserum centrale stratum griseum superficiale, and stratum marginale and stratum opticum degeneration in the brain tissues were documented. The neuron cells were scattered or degenerated and stretched with a shrunken nucleus in the treated groups. The revocable alterations in acetylcholinesterase and brain histoarchitecture upon the termination of dosing indicated that the fry can able to tolerate and mount adaptive responses to overcome the EB toxicity.</p></div>","PeriodicalId":100464,"journal":{"name":"Emerging Animal Species","volume":"10 ","pages":"Article 100042"},"PeriodicalIF":0.0,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772813724000027/pdfft?md5=5782446c698f877811d525ae5bd0337e&pid=1-s2.0-S2772813724000027-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139635155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Serological, bacteriological, and molecular detection of brucellosis in pigs of Tamil Nadu, India 印度泰米尔纳德邦猪布鲁氏菌病的血清学、细菌学和分子检测
Emerging Animal Species Pub Date : 2024-01-18 DOI: 10.1016/j.eas.2024.100041
P. Preena , B.S.M. Ronald , S. Balakrishnan , M. Murugan , Anbu Kumar K. , P.I. Ganesan
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