Veterinary medicine (Auckland, N.Z.)最新文献

{"title":"Effect of a Topical Formulation on Infective Viral Load in Lambs Naturally Infected with Orf Virus.","authors":"Delia Lacasta, Ramses Reina, Marta Ruiz de Arcaute, Luis Miguel Ferrer, Alfredo Angel Benito, Maria Teresa Tejedor, Irache Echeverria, Hector Ruiz, Silvia Martinez Cardenas, Peter Andrew Windsor","doi":"10.2147/VMRR.S306355","DOIUrl":"10.2147/VMRR.S306355","url":null,"abstract":"<p><strong>Introduction: </strong>Orf is a highly contagious eruptive viral disease of the skin and mucosa of sheep and goats. Although vaccination with live or attenuated orf virus is the preferred option for disease control, the vaccine is unavailable in many countries. Treatment of orf lesions involves standard hygiene and in numerous cases, management of presumptive secondary infections with antibiotics, increasing risks of antimicrobial resistance (AMR). The wound dressing formulation Tri-Solfen^® containing two local anaesthetics (lignocaine and bupivacaine), adrenaline and an antiseptic (cetrimide) in a gel formulation was developed for pain relief in sheep undergoing surgical husbandry procedures in Australia. Recently, TS therapy was found to reduce suffering and enhance recovery in cattle and buffalo with oral and skin lesions due to foot-and-mouth disease (FMD) virus infection. It was noted that TS has a low pH and is potentially viricidal, potentially aiding disease control.</p><p><strong>Methods: </strong>One-month-old lambs (n=14), naturally infected with orf, were recruited from a farm during a natural outbreak of the disease. The animals were selected at the early stages of the infection and randomly divided into two cohorts: Group A (n=11) treated with the topical wound gel formulation (TS); and Group B (n=3) an untreated control group. Swabs were obtained before treatment (T0) and on days one (T1), 3 (T2) and 5 (T3) post-treatment, then submitted to direct DNA extraction with real-time PCR quantification, plus incubation with primary tissue cultures from ovine skin fibroblasts (OSF) and T-immortalized goat embryonic fibroblasts (TIGEF).</p><p><strong>Results: </strong>Although no significant differences were found in the clinical progression of the lesions and PCR quantification (p=0.722) between these small cohorts, there was a significant difference (p<0.05) in reduction in infective viral load between the groups when assessed in OSF cell cultures between T0 and T3.</p><p><strong>Conclusion: </strong>These preliminary findings suggest that treatment of early stage lesions with this TS may reduce the infective viral load present in orf lesions.</p>","PeriodicalId":75300,"journal":{"name":"Veterinary medicine (Auckland, N.Z.)","volume":"12 ","pages":"149-158"},"PeriodicalIF":1.7,"publicationDate":"2021-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ea/20/vmrr-12-149.PMC8200145.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39238892","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}

{"title":"Seroprevalence of Bovine Viral Diarrhea Virus in Local Borana Cattle Breed and Camels (<i>Camelus dromedarius</i>) in Ethiopia.","authors":"Asamenew Tesfaye,&nbsp;Abdi Omer,&nbsp;Abdi Hussein,&nbsp;Abebe Garoma,&nbsp;Chala Guyassa,&nbsp;Jan Paeshuyse,&nbsp;Teshale Sori Tolera","doi":"10.2147/VMRR.S305198","DOIUrl":"https://doi.org/10.2147/VMRR.S305198","url":null,"abstract":"<p><strong>Background: </strong>Bovine viral diarrhea, caused by bovine viral diarrhea virus (BVDV), has been considered a disease of cattle but is now emerging in camels. In Ethiopia it has been detected in exotic and cross-bred dairy cattle but no information is available on its occurrence in indigenous cattle breeds and camels. This study was, therefore, conducted to estimate the prevalence of BVDV infection in indigenous Borana cattle and camels (<i>Camelus dromedarius</i>) in Moyale and Miesso pastoral districts.</p><p><strong>Methodology: </strong>Serological investigation was carried out on 219 cattle from 44 herds and 137 camels from 11 herds in contact with the selected cattle herds in Boranara zone and 348 camels from 41 herds in Shinille zone. The sera samples were tested using a competitive enzyme lnked immunosorbent assay (c-ELISA) to detect antibodies against p80 protein of BVDV. In addition, all of the cattle sera were tested using antigen detection ELISA for identification of persistent infection.</p><p><strong>Results: </strong>Among the 219 cattle tested, 177 (80.82%; 95% CI: 74.97-85.81) were found to be positive for antibodies against BVDV in Moyale district, Borena Zone. The prevalence varied among different age groups and parity. The highest prevalence was observed in cattle aged 8 years and older (84.0%; 95% CI: 69.6-98.4) and in primiparous cattle (85.5%; 95% CI: 76.2-94.8). Two of the 219 cattle tested (0.05%; 95% CI: 0.02-0.08) were found to be positive with antigen detection ELISA. In addition, out of a total of 137 camels tested, two (1.46%; 95% CI: 0.18-5.17) were found to be positive in this district. Among the 348 camels tested, eight (2.29%; 95% CI: 0.99-4.485) were found to be positive for antibodies against BVDV. In conclusion, this study revealed a high prevalence of infection in Borana cattle. In addition, it recorded the occurrence of infection with BVDV in camel herds. None of the camels tested positive for the antigen of BVDV using antigen ELISA.</p>","PeriodicalId":75300,"journal":{"name":"Veterinary medicine (Auckland, N.Z.)","volume":"12 ","pages":"141-148"},"PeriodicalIF":0.0,"publicationDate":"2021-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/fe/32/vmrr-12-141.PMC8197621.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39238938","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}

{"title":"Prospective Clinical Evaluation of Intra-Articular Injection of Tin-117m (^117mSn) Radiosynoviorthesis Agent for Management of Naturally Occurring Elbow Osteoarthritis in Dogs: A Pilot Study.","authors":"Karanvir S Aulakh,&nbsp;Mandi J Lopez,&nbsp;Caleb Hudson,&nbsp;Lorrie Gaschen,&nbsp;Michelle Fabiani,&nbsp;Brian Beale,&nbsp;Frank M Andrews,&nbsp;Chin-Chi Liu,&nbsp;Jimmy Lattimer","doi":"10.2147/VMRR.S295309","DOIUrl":"https://doi.org/10.2147/VMRR.S295309","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the clinical effects of an intra-articular injection of ^117mSn-colloid for management of canine grade 1 or 2 elbow osteoarthritis (OA).</p><p><strong>Patients and methods: </strong>This was a prospective study in 23 dogs with grade 1 or 2 elbow OA. An orthopedic examination and elbow radiographs were performed to confirm the presence of OA. Dogs were randomly assigned to receive unilateral intra-articular (IA) injection of low-dose (LD: 1.0mCi, n =8), medium-dose (MD: 1.75mCi, n =6), or high-dose (HD: 2.5mCi, n =9) of ^117mSn-colloid. The primary outcome measure was peak vertical force (PVF) from force-plate gait analysis and secondary outcome measures included the Canine Brief Pain Inventory score (CBPI) and elbow goniometry. The CBPI was evaluated at pretreatment and then monthly post treatment for 1 year, and goniometry and PVF were evaluated at pretreatment, and at 1, 3, 6, 9 and 12 months post treatment.</p><p><strong>Results: </strong>PVF improved at 3, and 9 months compared to pretreatment values in the HD group. CBPI scores improved at most of the time points in all dose groups. There was no significant difference in elbow goniometry between treated and untreated elbows. There were no self-reports of any adverse effects of the injection by the owners and none were noted by the examining veterinarian at the time of regularly scheduled re-evaluations.</p><p><strong>Conclusion: </strong>^117mSn IA injection was free of any obvious adverse effects, improved CBPI scores, and increased weight bearing in limbs with elbow OA providing preliminary evidence that ^117mSn may be beneficial in the management of elbow OA in dogs. Although ^17mSn appeared to be effective for management of elbow OA in these dogs, this pilot study has inherent limitations; therefore, future studies with larger numbers and with placebo group are needed.</p>","PeriodicalId":75300,"journal":{"name":"Veterinary medicine (Auckland, N.Z.)","volume":"12 ","pages":"117-128"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/55/a3/vmrr-12-117.PMC8187093.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39015012","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}

{"title":"Antigenic and Molecular Characterization of Virulent Newcastle Disease Viruses Circulating in Ethiopia Between 1976 and 2008.","authors":"Fufa D Bari,&nbsp;Esayas Gelaye,&nbsp;Berhe Gebreegziabher Tekola,&nbsp;Timm Harder,&nbsp;Martin Beer,&nbsp;Christian Grund","doi":"10.2147/VMRR.S297281","DOIUrl":"https://doi.org/10.2147/VMRR.S297281","url":null,"abstract":"<p><strong>Introduction: </strong>Newcastle disease virus (NDV) cultures held in the isolate collections in Ethiopia between 1976 and 2008 were not characterized using biological and molecular techniques. The already characterized NDV isolates belonged to genotype VI but the genetic nature of previously collected isolates, which could shade light on the history of introduction into the country and their evolutionary relationships, were not established.</p><p><strong>Methods: </strong>A total of 14 NDVs (11 obtained from outbreak cases in chickens and three commercial vaccinal strains used in the country) were inoculated into specific pathogen free (SPF) embryonated chicken eggs (ECE). Allantoic fluids harvested from grown SPF ECE were tested by heamagglutination (HA) and heamagglutination inhibition (HI) tests. Partial F gene sequences were generated for all samples and molecular evolutionary relationships were reconstructed together with reference sequences freely available online. The pathogenicities of the isolates were assessed in vivo by determining their intracerebral pathogenicity index (ICPI) in day-old chicks and molecularly by determination of F gene cleavage sites.</p><p><strong>Results: </strong>Of these, 12 viruses (two vaccines and 10 outbreaks) were successfully propagated as evidenced by a positive heamagglutination (HA) test. These 12 propagated viruses were further characterized by heamagglutination inhibition (HI) test, of which only three viruses reacted with monoclonal antibody (MAb 617/616) specific for pigeon paramyxovirus-1. In addition, all 14 viruses were characterized by partial fusion (F) gene sequencing and phylogenetic tree reconstruction. The Ethiopian NDV isolates clustered with genotype VI viruses, forming two clades (groups 1 and 2) that have ancestral relationships with Egypt-1990 and Sudan-1975 like viruses.</p><p><strong>Discussion: </strong>The characterized genotype VI NDVs were genetically similar to currently circulating NDVs in Ethiopia. The isolates had cleavage sites consistent with mesogenic/velogenic NDV with a mean ICPI value of 1.76, indicating that the isolates were velogenic. Two and four highly virulent viruses were thermostable at 56°C for 2 hours and 1 hour, respectively. To reduce chicken mortality and production losses, proper control of the disease should be instituted using high quality and protective vaccines together with strong biosecurity measures.</p>","PeriodicalId":75300,"journal":{"name":"Veterinary medicine (Auckland, N.Z.)","volume":"12 ","pages":"129-140"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/cb/b5/vmrr-12-129.PMC8187085.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39015013","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}

{"title":"Household Practice Related to Zoonotic Diseases Transmission in Rural Community of Gondar Zuria District.","authors":"Atnaf Alebie,&nbsp;Tibeyin Tewachew","doi":"10.2147/VMRR.S306941","DOIUrl":"https://doi.org/10.2147/VMRR.S306941","url":null,"abstract":"<p><strong>Purpose: </strong>The study was done from October 2019 to April 2020 for the purpose of identifying practices and characterizing the general public knowledge, attitudes and associated risk factors related to animal contact that influence zoonotic disease transmission in the rural household heads of North Gondar area, Amhara Regional State, Ethiopia.</p><p><strong>Patients and methods: </strong>During this study, a cross-sectional type of study was designed and a simple random sampling method was used to choose kebeles. Six kebeles were randomly selected using a lottery method. Systematic random sampling method was employed to select and question 65 household heads from each of the kebeles. In total, 390 structured questionnaires were prepared for those household heads and the data were collected using face to face interviews. Finally, the recorded data were examined using STATA version 16 statistical software and the frequency distribution of both variables was observed using descriptive statistics. Linear regression model was used to see the relation between household practices and the explanatory factors.</p><p><strong>Results: </strong>The results showed that there was a gender difference in responsibility for managing livestock and the central aim of rearing livestock was for sale. Among 390 members of households, 38.7% understand a probability of disease transmission in their community between livestock, humans and wildlife, regardless of the fact that household practices related to zoonosis transmission were common. Of the households, 52.3% responded that they permit animals to go into kitchen and sleeping areas (95% CI = 1.15-2.73; P = 0.009). The factors which influence the household practices were agro-ecology activities; livestock management; number of individuals in the household; types of livestock reared; and zoonosis awareness.</p><p><strong>Conclusion: </strong>In general, the present study showed that the public had a very low awareness about major zoonotic diseases. This indicates the need for awareness creation through education and an inter-disciplinary health approach with close collaboration among veterinarians, public health practitioners and policymakers.</p>","PeriodicalId":75300,"journal":{"name":"Veterinary medicine (Auckland, N.Z.)","volume":"12 ","pages":"109-115"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/82/e9/vmrr-12-109.PMC8178743.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39092999","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}

{"title":"Antibiotic Resistance Development in Animal Production: A Cross-Sectional Study.","authors":"Daniel Teshome Gebeyehu","doi":"10.2147/VMRR.S310169","DOIUrl":"10.2147/VMRR.S310169","url":null,"abstract":"<p><strong>Background: </strong>In recent years, an increase in the development of antimicrobial-resistant pathogens especially foodborne zoonotic bacteria has been observed. As a result, crude mortality rates are increasing due to those resistant bacteria in both human and animal populations, particularly in developing countries like Tanzania where the risk of infection is high due to poor biosecurity measures, close animal-human interactions, and extensive use of antimicrobials for animal productions. One of those zoonotic bacterial pathogens, which commonly contaminates food, is <i>Salmonella</i>.</p><p><strong>Methodology: </strong>A cross-sectional study was carried out on samples collected from diarrheic sheep, to assess the level of antibiotic resistance of <i>Salmonella</i>. From 165 fecal samples, 80 of which were tested positive for <i>Salmonella</i>. The antibiotic resistance level of <i>Salmonella</i> isolates was conducted by the Kirby-Bauer disc diffusion method using ten commonly used antibiotics in the study area.</p><p><strong>Results: </strong>Out of 80 <i>Salmonella</i> positive samples, all (100%) of them were resistant to amoxicillin and ampicillin while sixty-eight (85%), 68 (85%), and 60 (75%) isolates were susceptible to gentamicin, ciprofloxacin, and kanamycin, respectively. Thirty (37.5%) <i>Salmonella</i> isolates were resistant to both trimethoprim and tetracycline and 25% of the isolates were resistant to both doxycycline and chloramphenicol while 12.5% of the isolates were resistant to nalidixic acid.</p><p><strong>Conclusion: </strong>This study revealed that the <i>Salmonella</i> isolates of diarrheic sheep developed a wide range of resistance to different antibiotics. Further studies and integrative approaches in a one health framework among animal-human and environmental health professionals are recommended for the mitigation of health risks arising from antibiotic-resistant zoonotic pathogens like <i>Salmonella</i>.</p>","PeriodicalId":75300,"journal":{"name":"Veterinary medicine (Auckland, N.Z.)","volume":"12 ","pages":"101-108"},"PeriodicalIF":1.7,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f7/a6/vmrr-12-101.PMC8140932.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39022410","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}

{"title":"Ovine Footrot and Its Clinical Management.","authors":"Haben Fesseha","doi":"10.2147/VMRR.S306207","DOIUrl":"https://doi.org/10.2147/VMRR.S306207","url":null,"abstract":"<p><p>Footrot is one of the most important causes of lameness and economic losses in sheep and goat production worldwide. A 2-years-old ram was presented to the college of veterinary science teaching hospital, Mekelle University, with a history of non-weight bearing lameness of the left hindlimb. The hoof was damaged, split and the interdigital space was full of dirt and the scent of a rotten smell. On clinical examination, the sheep was suffering from depression, weight loss,  with elevation in the physiological parameters such as a rectal temperature of 40.1°C, heart rate of 96 beats per minute, and respiratory rate of 40 breaths per minute. The hoof was carefully washed with isotonic saline solution and disinfected with hydrogen peroxide 3% and povidone-iodine 1%. Additionally, meloxicam (0.5mg/kg, IM) thrice daily for three days and oxytetracycline 10% (10mg/kg, IM) for successive 5 days were administered parenterally. The infected surface was also treated with topical oxytetracycline spray for five days. The sheep have recovered after 7 days of treatment with significant improvement in the hoof injury. Successful management of footrot in Abergele sheep is discussed in the current case report.</p>","PeriodicalId":75300,"journal":{"name":"Veterinary medicine (Auckland, N.Z.)","volume":"12 ","pages":"95-99"},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/24/5f/vmrr-12-95.PMC8124013.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38996687","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}

{"title":"Camel Trypanosomosis in Yabelo and Gomole Districts in Ethiopia: Prevalence and Associated Risk Factors Based on Parasitological Examinations.","authors":"Oljirra Rafu,&nbsp;Dereje Tulu,&nbsp;Chaluma Negera","doi":"10.2147/VMRR.S288314","DOIUrl":"https://doi.org/10.2147/VMRR.S288314","url":null,"abstract":"<p><strong>Background: </strong>Trypanosomosis is the most prevalent disease and causes serious economic losses in Ethiopia. The disease is among the major constraint to camel production in the country. Hence, this study aimed to determine the occurrence and associated risk factors of camel trypanosomosis in the Borana zone, Ethiopia.</p><p><strong>Methods: </strong>A cross-sectional study design was conducted from December 2018 to December 2019 using parasitological techniques in the Yabelo and Gomole districts of the Borana zone. A total of 384 camels were randomly selected and tested using wet blood film (thin) and the Giemsa-stained technique. The packed cell volume (PCV) of sampled camels was recorded using a hematocrit reader.</p><p><strong>Results: </strong>An overall 3.91% prevalence of camel trypanosomosis was observed in study areas. <i>Trypanosoma</i>-infected camel had significant (P=0.0001) lower mean PCV (20.73±1.91) than non-infected camel (27.07±4.35). The current study showed body condition of camel (OR=6.8, 95% CI: 1.44-31.83) and season (OR=3.1, 95% CI: 1.04-9.07) as risk factors for the occurrence of camel trypanosomosis. However, the sex, age, and origin (district) of camel did not affect the occurrence of camel trypanosomosis in the study areas.</p><p><strong>Conclusion: </strong>Camel trypanosomosis impeded camel production in the study areas. Therefore, control and prevent methods considering seasonality, different ecology is necessary to design and implement. Moreover, a further study involving more sensitive molecular techniques should be conducted on camel trypanosomosis and their vectors.</p>","PeriodicalId":75300,"journal":{"name":"Veterinary medicine (Auckland, N.Z.)","volume":"12 ","pages":"87-94"},"PeriodicalIF":0.0,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/84/74/vmrr-12-87.PMC8121683.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38996686","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}

{"title":"Erratum: Dissolution Rates of Calcium Boluses and Their Effects on Serum Calcium in Dairy Cattle [Corrigendum].","authors":"","doi":"10.2147/VMRR.S311343","DOIUrl":"https://doi.org/10.2147/VMRR.S311343","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.2147/VMRR.S293128.].</p>","PeriodicalId":75300,"journal":{"name":"Veterinary medicine (Auckland, N.Z.)","volume":"12 ","pages":"85"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d6/14/vmrr-12-85.PMC8079345.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38940658","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}

{"title":"Effect of <i>Lactobacillus</i> Species Probiotics on Growth Performance of Dual-Purpose Chicken.","authors":"Haben Fesseha,&nbsp;Tigabu Demlie,&nbsp;Mesfin Mathewos,&nbsp;Eyob Eshetu","doi":"10.2147/VMRR.S300881","DOIUrl":"https://doi.org/10.2147/VMRR.S300881","url":null,"abstract":"<p><strong>Introduction: </strong>In-feed probiotics are becoming attractive alternatives to antibiotics in the poultry industry due to the ever-growing strict prohibitions on antibiotic growth promoters (AGP) in animal production.</p><p><strong>Methods: </strong>The study was conducted to investigate the effects of <i>Lactobacillus paracaseis sparacasei</i> and <i>Lactobacillus rhamnosus</i> on the growth performance of 120 day-olds randomly selected Sasso dual-purpose chicken. They were divided into four groups with two replicates per group and 15 chicks per replicate. The treatments were T₁ (control), T₂ (supplement diet with 4g probiotic), T₃ (supplement diet with 2g probiotic), T₄ (supplement diet with 1g probiotic). The experimental feeding trials were conducted after two weeks adaptation period.</p><p><strong>Results: </strong>The present findings revealed that the chickens supplemented with <i>Lactobacillus</i> species probiotics during the first week of age have shown higher body weight than control (<i>p</i> < 0.05). The feed intake of week one of T₂ and T₃ were significantly higher (<i>p</i>< 0.05) than the T₁ (control). However, there was no significant difference (<i>p</i>> 0.05) in feed intake in the 2^nd, 3^rd, 4^th, and 5^t ^h weeks of all treatment groups. The present result showed that there was a significant body weight gain (<i>p</i>< 0.05) in all probiotic fed groups than the control group. The highest body weight gain was observed in chickens found in the T4 treatment group. Whereas the body weight gains significantly higher and improved the feed conversion (<i>p</i><0.05) in the T₂ and T₄ than the T₁ (control). However, the feed conversion ratio was significantly influenced by probiotic inclusion in T₃ as compared to the control group.</p><p><strong>Conclusion: </strong>Overall, the results suggest that <i>Lactobacillus paracaseis sparacasei</i> and <i>Lactobacillus rhamnosus</i> have a positive effect on the growth performance of broilers.</p>","PeriodicalId":75300,"journal":{"name":"Veterinary medicine (Auckland, N.Z.)","volume":"12 ","pages":"75-83"},"PeriodicalIF":0.0,"publicationDate":"2021-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/2d/9c/vmrr-12-75.PMC8039195.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38807769","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}