Arquivo Brasileiro De Medicina Veterinaria E Zootecnia最新文献

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Effect of lunging exercise program with Pessoa training aid on cardiac physical conditioning predictors in adult horses 佩索阿训练辅助下的弓步运动计划对成年马心脏体能预测指标的影响
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI: 10.1590/1678-4162-12972
R. F. Siqueira, M. Teixeira, F.P. Perez, L.S. Gulart
{"title":"Effect of lunging exercise program with Pessoa training aid on cardiac physical conditioning predictors in adult horses","authors":"R. F. Siqueira, M. Teixeira, F.P. Perez, L.S. Gulart","doi":"10.1590/1678-4162-12972","DOIUrl":"https://doi.org/10.1590/1678-4162-12972","url":null,"abstract":"ABSTRACT The aim of this study was to evaluate the effect the Pessoa training aid (PTA) exercise program exerts in some physical conditioning predictors. Eight detrained adult horses were evaluated in 12 sessions of work with PTA (3 sessions per week). All horses used a heart rate monitor and GPS (V800, Polar Electro) and data was used to calculate energy expenditure (EE), net cost of transport (COT), metabolic energy requirement (Pmet), oxygen pulse, oxygen utilization, heart rate and heart rate variability (HRV). The horses were weighted, and the thoracolumbar shape were measured at the level of the 18th (T18), 13th (T13) and 8th (T8) thoracic vertebrae with a flexible ruler before and after the experimental period. Data obtained weekly were submitted to ANOVA and Tukey test (p≤0.05). Data obtained just before and after the experimental period were submitted to paired t test. There was a decrease in left-right asymmetry. In the third week there was an increase in HR, EE, oxygen pulse and oxygen utilization followed by a decrease in the fourth week. The biomechanics related parameters, COT and Pmet decreased week by week. The HRV showed a sympathetic stimulus in the third week followed by a shift to parasympathetic in the fourth week. We conclude that 12 sessions of lunge exercise with PTA contributed to physical condition improvement.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44213528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Collecting information on estrus in cattle using the internet of things 利用物联网收集牛发情信息
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI: 10.1590/1678-4162-12940
K. A. Gündüz, F. Basçiftçi
{"title":"Collecting information on estrus in cattle using the internet of things","authors":"K. A. Gündüz, F. Basçiftçi","doi":"10.1590/1678-4162-12940","DOIUrl":"https://doi.org/10.1590/1678-4162-12940","url":null,"abstract":"ABSTRACT Monitoring the movements of ruminant animals is one of the most challenging tasks. In animals that act according to their habits, it is difficult to label such movements and transfer them to farmers. Monitoring and recording the movement and behavior of animals on a farm is an adopted method for successfully determining the duration of the estrus cycle in ruminant animals. The Internet is a technology that offers remarkable solutions for such applications. The aim of this study is to determine the hourly step counts and to find the estrus period in the most accurate way with a circuit design applied to the ankles of animals using an IoT-supported microcontroller. The data is transferred to the web environment wirelessly and monitored via wi-fi communication signals. This wireless wearable and network equipment determines the step count and monitors the animal's abnormal body temperature. An IoT-supported microcontroller provides wireless communication, high-speed data transmission, and low power consumption. Insemination was ensured by testing different animals on the application farm. The data is monitored in real-time, and the system gives an alert. Low cost, high reliability, and being able to be watched over the internet are the advantages of the system. This study helped develop new techniques and provided a low-cost proposition for testing wearable technologies on animals.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41766182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mixed infection of Bartonella and Eperythrozoon in a dog - case report 犬巴尔通体和附红体混合感染1例报告
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI: 10.1590/1678-4162-12955
Nihui Shao, Zihan Xue, Rujia Wang, Yonggang Ma, D. Fang, Hui Zou
{"title":"Mixed infection of Bartonella and Eperythrozoon in a dog - case report","authors":"Nihui Shao, Zihan Xue, Rujia Wang, Yonggang Ma, D. Fang, Hui Zou","doi":"10.1590/1678-4162-12955","DOIUrl":"https://doi.org/10.1590/1678-4162-12955","url":null,"abstract":"ABSTRACT A March male Golden, weighing 7.6kg, presented with gradual weight loss, high body temperature, depression, poor appetite and thirst, and vomiting before consultation. The results showed that the erythrocytes, hematocrit, hemoglobin, and platelets were lower than the reference values. The diagnosis of mixed infection with haematocrit and eosinophilic bodies was confirmed by real-time fluorescence PCR of whole blood, which was positive for haematocrit and eosinophilic bodies. The dog was treated with doxycycline and ceftriaxone, and the dog fully recovered after 2 weeks with blood transfusion, symptomatic treatment, and supportive therapy. This indicates that the disease can be treated well by a comprehensive treatment approach.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47217025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Carpal valgus angle deviation in thoroughbred foals corrected using single transphyseal screw implant 使用单一经骨螺钉植入矫正纯种小马驹腕外翻角度偏差
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI: 10.1590/1678-4162-12893
R. B. Zavilenski, J. P. Pessôa Neto, R. G. Motta, L. Motta, M. G. Ribeiro
{"title":"Carpal valgus angle deviation in thoroughbred foals corrected using single transphyseal screw implant","authors":"R. B. Zavilenski, J. P. Pessôa Neto, R. G. Motta, L. Motta, M. G. Ribeiro","doi":"10.1590/1678-4162-12893","DOIUrl":"https://doi.org/10.1590/1678-4162-12893","url":null,"abstract":"ABSTRACT The objective of this study was to demonstrate the effectiveness of the single transphyseal screw technique in foals diagnosed with carpal valgus deviation. This study included 22 thoroughbred animals of both sexes, with a mean age of 30 days. All animals had a carpal valgus deviation >5° with irregular development of the distal epiphysis of the radius. All animals were surgically treated to correct the carpal valgus deviation by creating a bridge using a single transphyseal screw. Surgical intervention was performed for 40 limbs, comprising 19 right and 21 left thoracic limbs. This corresponded to four animals with carpal valgus deviation >5° in only one of the limbs and 18 with the deviation in both limbs. It was observed that 38/40 treated limbs (95%) achieved normal angulation according to the literature, i.e., angulation between 0° and 5°. No statistical differences were observed between the affected limbs. The single transphyseal screw technique can be used for the correction of carpal valgus deviation in foals. It is indicated in animals with an average age of 30 days (20-55 days), as its main advantages are rapid application, simple execution, and limited trans- and post-surgical complications, making it an effective procedure in thoroughbred foals with carpal valgus angular deviation.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41792639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adultrap® trap optimized for collecting vector mosquito eggs, larvae and adults Adultrap®诱捕器经过优化,可收集媒介蚊子的卵、幼虫和成虫
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI: 10.1590/1678-4162-12843
M. B. Arduino, G. V. Santos, O. Rangel
{"title":"Adultrap® trap optimized for collecting vector mosquito eggs, larvae and adults","authors":"M. B. Arduino, G. V. Santos, O. Rangel","doi":"10.1590/1678-4162-12843","DOIUrl":"https://doi.org/10.1590/1678-4162-12843","url":null,"abstract":"ABSTRACT The productivity of the Adultrap® trap was compared to that of modified adultrap traps. Two structural changes were tested, a cover was placed at the entrance of the trap at two different heights. A comparison was also made with traps containing hydrogel to replace the water in the reservoir. The positivity rates of all the trap types were calculated and compared. The hydrogel models were more productive because they collected eggs, larvae, and adults. The trap that removed the protective screen and replaced the water with the hydrogel was 18.5 times larger than the original trap (p = 0.001). There was an increase in the productivity for the total collection of mosquitoes. The collection of eggs, larvae, and adults can contribute to the construction of more robust infestation indices. In addition, it allows for the collection of live specimens and the development of studies.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42233355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphological and molecular characterization of the monogenean gill parasite, Acleotrema maculatus, infecting Argyrops filamentosus fish in the Red Sea, Saudi Arabia 沙特阿拉伯红海丝状银鲷单基因鳃寄生体斑点棘孔虫的形态和分子特征
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI: 10.1590/1678-4162-12993
E. Alshehri, R. Abdel-Gaber, S. Quraishy, M. Alghamdi, E. Al-Shaebi
{"title":"Morphological and molecular characterization of the monogenean gill parasite, Acleotrema maculatus, infecting Argyrops filamentosus fish in the Red Sea, Saudi Arabia","authors":"E. Alshehri, R. Abdel-Gaber, S. Quraishy, M. Alghamdi, E. Al-Shaebi","doi":"10.1590/1678-4162-12993","DOIUrl":"https://doi.org/10.1590/1678-4162-12993","url":null,"abstract":"ABSTRACT Fish are considered one of the important sources of protein which are invaded by different parasites. This study aimed to shed light on monogenean parasites that infect fish within the family Sparidae in Saudi Arabia. A total of 30 Argyrops filamentosus specimens were collected from the Red Sea, the city of Jeddah (Saudi Arabia), and then examined for the presence of monogenean parasites. Parasitic species were isolated and studied morphologically using light microscopic examination and molecularly via the partial sequencing of the 28S rRNA gene. Only a monogenean parasitic species has been identified. This parasite is morphologically and morphometric compatible with previously Acleotrema maculatus Morsy, El-Fayoumi & Fahmy (2014), identified from Plectropomus maculatus in the Red Sea, Egypt. Phylogeny revealed that this putative diplectanid species nested well within a clade clustering Diplectanidae species, which along with morphological data, suggests it is a member of the genus Acleotrema. Query sequences showed identities of 98.92% for 28S rRNA (AF026118.1) of Acleotrema sp. This study reflects the first account of this genus as endoparasite taxa of the examined sparid fish, as well as providing novel DNA data for this species.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45712047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of heat stress and solar radiation on dry matter intake, biochemical indicators, production, and quality of Holstein and Jersey cows' milk 热应激和太阳辐射对荷斯坦奶牛和泽西奶牛干物质采食量、生化指标、产量和品质的影响
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI: 10.1590/1678-4162-12884
A. Hauser, M. França, R. Hauser, A. L. Scheid, L. Perazzoli, B. P. Mendes, I. P. Telles, L. C. Miletti, A. Thaler Neto
{"title":"Effect of heat stress and solar radiation on dry matter intake, biochemical indicators, production, and quality of Holstein and Jersey cows' milk","authors":"A. Hauser, M. França, R. Hauser, A. L. Scheid, L. Perazzoli, B. P. Mendes, I. P. Telles, L. C. Miletti, A. Thaler Neto","doi":"10.1590/1678-4162-12884","DOIUrl":"https://doi.org/10.1590/1678-4162-12884","url":null,"abstract":"ABSTRACT The objective of this work was to compare the dry matter intake, milk yield and quality, physiological and biochemical parameters in Holstein (n=10) and Jersey (n=10) cows under heat stress and insolation, in two treatments: CL - cooling by ventilation and sprinkling and HS - heat stress and insolation. Data were submitted to ANOVA. There was an interaction between treatment and breed and day effect for dry matter intake. For consumption in % of body weight, CL and Jersey cows consumed more. CL cows produced more milk and 3.5% fat-corrected milk. Feed efficiency was similar between treatments and breeds. Fat, lactose, total solids, and somatic cell score did not differ. The concentration of milk urea nitrogen was higher for CL cows. Milk from Holstein cows had greater stability to alcohol, and from HT cows had a greater freezing point of milk. HT cows had higher respiratory rates in the morning and surface temperatures in the afternoon. There were no differences in beta-hydroxybutyrate and glucose concentrations. Heat stress, with insulation, reduces intake, especially in Holstein cows, as well as milk production and increases the freezing point of milk, respiratory rate, and surface temperature.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42285115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surgical approach in correction of a crack in the gnathotheca of a black swan (Cygnus atratus, Latham, 1790) - First case report 手术入路矫正黑天鹅(Cygnus atratus, Latham, 1790)牙缝裂缝-第一例报告
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI: 10.1590/1678-4162-12840
L. Cazati, M. Ferreira, T.B.P. Faiete, G. Silva, G. Xavier, T. Araújo, G. Araújo, C. S. Pizzutto, G. Facco
{"title":"Surgical approach in correction of a crack in the gnathotheca of a black swan (Cygnus atratus, Latham, 1790) - First case report","authors":"L. Cazati, M. Ferreira, T.B.P. Faiete, G. Silva, G. Xavier, T. Araújo, G. Araújo, C. S. Pizzutto, G. Facco","doi":"10.1590/1678-4162-12840","DOIUrl":"https://doi.org/10.1590/1678-4162-12840","url":null,"abstract":"ABSTRACT The black swan (Cygnus atratus, LATHAM, 1790) is a bird kept as an ornamental in zoos. Because of their long beaks they tend to have a reserved prognosis in musculoskeletal disorders such as beak trauma, secondary to skull bone fractures, presenting irreversible lesions. The aim of this report is present a clinical surgical innovation in the repair of a black swan’s gnathotheca fissure with the application of non-conventional materials used. It was observed that one of the swans kept in a zoo display area had difficulty feeding, with associated weight loss. It was observed tissue loss and a lacerative lesion in the caudal sublingual region of its beak. The lesion was corrected by a separate simple suture in the cranial region of the beak and with a x-clamping using steel surgical wire and the application of dental resin in the distal region to perform a sustentation bridge in the beak end-gap. After 12 days, the animal was able to feed again and remained perfectly adapted to the restoration, reestablishing the anatomical and physiological function of its beak.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45126507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatial analysis of leptospirosis and toxoplasmosis seroprevalence in the canine population in an area of socioeconomic and environmental vulnerability 社会经济和环境脆弱地区犬群钩端螺旋体病和弓形虫病血清患病率的空间分析
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI: 10.1590/1678-4162-12817
L. D. Belaz, Camila Santana, C. Victória, J. Pantoja, J. C. Freitas, I. Navarro, M.R. Pereira, M. F. Arabe Filho, L. M. Oliveira, A. C. Paes, M. G. Ribeiro, J. Megid
{"title":"Spatial analysis of leptospirosis and toxoplasmosis seroprevalence in the canine population in an area of socioeconomic and environmental vulnerability","authors":"L. D. Belaz, Camila Santana, C. Victória, J. Pantoja, J. C. Freitas, I. Navarro, M.R. Pereira, M. F. Arabe Filho, L. M. Oliveira, A. C. Paes, M. G. Ribeiro, J. Megid","doi":"10.1590/1678-4162-12817","DOIUrl":"https://doi.org/10.1590/1678-4162-12817","url":null,"abstract":"ABSTRACT Leptospirosis and toxoplasmosis are zoonoses of occupational character that are spread worldwide, mainly in tropical and socioeconomically vulnerable areas. Both diseases have vertebrate hosts, which spread the infectious agent to the environment and are potentially infectious to humans and can progress to fatal cases. The present study reinforces the importance of One Health for the control and prophylaxis of leptospirosis and toxoplasmosis using sentinel animals in areas of socioeconomic vulnerability based on a serological study. A total of 336 blood samples were obtained from the canine population of the urban district, which has high rates of poverty and sanitation. The results were analyzed based on seroreactivity animals and georeferencing by kernel spatial mapping. A total of 43.3% (52/120) of the animals were seroreagents for anti-Leptospira spp., with a predominance of Canicola (35/52 = 67.3%) and Pyrogenes (5/52 = 9.6%), while 52.97% (178/336) of the dogs were seroreactive for anti-Toxoplasma gondii. The presence of seroreagent dogs for both zoonosis alert to the inadequate hygienic-sanitary conditions of the studied region, and highlight the importance of a survey of the social, economic and environmental structure to identify factors related to the links in the epidemiological chain of pathogen transmission and necessary corrective actions.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43082249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Zootechnical performance, degree of steatosis and the genotoxic potential in yellowtail tetra Astyanax lacustris fed with different levels of L-carnitine 喂食不同水平L-肉碱的黄尾四尾鲎的动物技术性能、脂肪变性程度和遗传毒性潜力
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI: 10.1590/1678-4162-12934
L. F. Martins, W. V. Silva, N. F. Nascimento, M. P. Melo, B. Crispim, A. Barufatti, C. C. Hilbig
{"title":"Zootechnical performance, degree of steatosis and the genotoxic potential in yellowtail tetra Astyanax lacustris fed with different levels of L-carnitine","authors":"L. F. Martins, W. V. Silva, N. F. Nascimento, M. P. Melo, B. Crispim, A. Barufatti, C. C. Hilbig","doi":"10.1590/1678-4162-12934","DOIUrl":"https://doi.org/10.1590/1678-4162-12934","url":null,"abstract":"ABSTRACT L-carnitine perform a major role in transporting long-chain fatty acids into the mitochondria, where they are oxidized. It has been used in animal diets to decrease fat and increase muscle protein. The aim of this study was to evaluate the zootechnical performance, degree of steatosis in the liver, and genotoxic potential in Astyanax lacustris fed with different levels of L-carnitine (LC). Yellowtail tetra juveniles (n = 140) were distributed in 20 tanks of 70 L, with seven fish in each, in a water recirculation system with controlled temperature (27±0.1⁰C). The treatments with different levels of L-carnitine supplementation were: 0 (control), 250, 500, 750, and 1000 mg of LC per kg of food. The diets were provided twice a day for 60 days. The results showed that the different levels of LC did not affect (P>0.05) weight gain, survival, viscerosomatic index, and the liver hepatocytes showed a normal appearance. However, the use of LC supplementation showed genotoxic potential with a significant difference (P<0.05) for cell alterations when compared to the control at concentrations above 500mg kg-1.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43500591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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