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Breeding profiles at the periparturient stage in captive red foxes (Vulpes vulpes) mating naturally or subjected to artificial insemination in Japan Texto completo
2019
Yatu, Minoru | Satō, Mitsuhiro | Kobayashi, Jin | Ichijyo, Toshihiro | Satoh, Hiroshi | Oikawa, Toshinori | Sato, Shigeru
Breeding profiles at the periparturient stage in captive red foxes (Vulpes vulpes) mating naturally or subjected to artificial insemination in Japan Texto completo
2019
Yatu, Minoru | Satō, Mitsuhiro | Kobayashi, Jin | Ichijyo, Toshihiro | Satoh, Hiroshi | Oikawa, Toshinori | Sato, Shigeru
Introduction: Breeding profiles at the periparturient stage in red foxes which mated naturally or were subjected to artificial insemination were retrospectively surveyed using 130 vixens during their reproductive seasons of 2012–2017 in Japan. Material and Methods: Natural mating vixens were encouraged a maximum of three times with the same male, while artificial insemination was conducted using frozen-thawed semen with the bovine semen extender as a diluent. Results: With natural mating, conception rates after one, two, and three copulations were 55.8%, 68.0%, and 85.7%, respectively, showing a significant difference between the rates for one and three copulations. Conception rates with artificial insemination were 82.4%. Mean gestation periods were between 52.1 and 53.3 days in all groups. Mean litter sizes were 3.7–4.3 cubs with natural mating, and 4.4 cubs with artificial insemination. Although some sporadic and inconsistent changes in litter sizes were noted between primiparous and multiparous groups, these were of doubtful clinical importance. Conclusion: This is the first report from Japan concerning basic breeding events of red fox vixens in captivity.
Mostrar más [+] Menos [-]Breeding profiles at the periparturient stage in captive red foxes (Vulpes vulpes) mating naturally or subjected to artificial insemination in Japan Texto completo
2019
Yatu Minoru | Sato Mitsuhiro | Kobayashi Jin | Ichijyo Toshihiro | Satoh Hiroshi | Oikawa Toshinori | Sato Shigeru
Introduction: Breeding profiles at the periparturient stage in red foxes which mated naturally or were subjected to artificial insemination were retrospectively surveyed using 130 vixens during their reproductive seasons of 2012–2017 in Japan. Material and Methods: Natural mating vixens were encouraged a maximum of three times with the same male, while artificial insemination was conducted using frozen-thawed semen with the bovine semen extender as a diluent. Results: With natural mating, conception rates after one, two, and three copulations were 55.8%, 68.0%, and 85.7%, respectively, showing a significant difference between the rates for one and three copulations. Conception rates with artificial insemination were 82.4%. Mean gestation periods were between 52.1 and 53.3 days in all groups. Mean litter sizes were 3.7–4.3 cubs with natural mating, and 4.4 cubs with artificial insemination. Although some sporadic and inconsistent changes in litter sizes were noted between primiparous and multiparous groups, these were of doubtful clinical importance. Conclusion: This is the first report from Japan concerning basic breeding events of red fox vixens in captivity.
Mostrar más [+] Menos [-]Identification and molecular characterisation of bovine parainfluenza virus-3 and bovine respiratory syncytial virus - first report from Turkey Texto completo
2019
Timurkan, Mehmet Ozkan | Aydın, Hakan | Ahmet Sait,
Identification and molecular characterisation of bovine parainfluenza virus-3 and bovine respiratory syncytial virus - first report from Turkey Texto completo
2019
Timurkan, Mehmet Ozkan | Aydın, Hakan | Ahmet Sait,
Introduction: Bovine parainfluenza virus-3 (BPIV3) and bovine respiratory syncytial virus (BRSV) are the cause of respiratory disease in cattle worldwide. With other pathogens, they cause bovine respiratory disease complex (BRDC) in ruminants. The aim of the study was the detection and molecular characterisation of BPIV3 and BRSV from nasal swabs and lung samples of cows in and around the Erzurum region of eastern Turkey. Material and Methods: In total, 155 samples were collected. Of animals used in the study 92 were males and 63 females. The age of the animals was between 9 months and 5 years, mean 1.4 years. Most males were in the fattening period and being raised in open sheds; females were in the lactating period and kept in free stall barns. All samples were tested for the presence of viral genes using RT-PCR. Gene-specific primers in a molecular method (RT-PCR) identified BRSV (fusion gene) and BPIV3 (matrix gene) strains at the genus level. Results: RNA from BRSV and BPIV3 was detected in two (1.29%) and three (1.93%) samples, respectively, one of each of which was sequenced and the sequences were aligned with reference virus strains. Phylogenetic analyses clustered the strains in genotype C/BPIV3 and subgroup III/BRSV. Conclusion: The results indicate that BRSV and BPIV3 contribute to bovine respiratory disease cases in Turkey. This is the first report on their detection and molecular characterisation in ruminants in Turkey.
Mostrar más [+] Menos [-]Identification and molecular characterisation of bovine parainfluenza virus-3 and bovine respiratory syncytial virus - first report from Turkey Texto completo
2019
Timurkan Mehmet Ozkan | Aydin Hakan | Sait Ahmet
Introduction: Bovine parainfluenza virus-3 (BPIV3) and bovine respiratory syncytial virus (BRSV) are the cause of respiratory disease in cattle worldwide. With other pathogens, they cause bovine respiratory disease complex (BRDC) in ruminants. The aim of the study was the detection and molecular characterisation of BPIV3 and BRSV from nasal swabs and lung samples of cows in and around the Erzurum region of eastern Turkey. Material and Methods: In total, 155 samples were collected. Of animals used in the study 92 were males and 63 females. The age of the animals was between 9 months and 5 years, mean 1.4 years. Most males were in the fattening period and being raised in open sheds; females were in the lactating period and kept in free stall barns. All samples were tested for the presence of viral genes using RT-PCR. Gene-specific primers in a molecular method (RT-PCR) identified BRSV (fusion gene) and BPIV3 (matrix gene) strains at the genus level. Results: RNA from BRSV and BPIV3 was detected in two (1.29%) and three (1.93%) samples, respectively, one of each of which was sequenced and the sequences were aligned with reference virus strains. Phylogenetic analyses clustered the strains in genotype C/BPIV3 and subgroup III/BRSV. Conclusion: The results indicate that BRSV and BPIV3 contribute to bovine respiratory disease cases in Turkey. This is the first report on their detection and molecular characterisation in ruminants in Turkey.
Mostrar más [+] Menos [-]Detection of antibiotic resistance and classical enterotoxin genes in coagulase -negative staphylococci isolated from poultry in Poland Texto completo
2019
Pyzik, Ewelina | Marek, Agnieszka | Stępień-Pyśniak, Dagmara | Urban-Chmiel, Renata | Jarosz, Łukasz S. | Jagiełło-Podębska, Izabella
Detection of antibiotic resistance and classical enterotoxin genes in coagulase -negative staphylococci isolated from poultry in Poland Texto completo
2019
Pyzik, Ewelina | Marek, Agnieszka | Stępień-Pyśniak, Dagmara | Urban-Chmiel, Renata | Jarosz, Łukasz S. | Jagiełło-Podębska, Izabella
Introduction: The study sought to characterise antimicrobial resistance among coagulase-negative Staphylococcus (CNS) species recovered from broiler chickens and turkeys in Poland including the presence of 12 antimicrobial resistance genes and five classical genes of staphylococcal enterotoxins. Material and Methods: A panel of 11 antimicrobial disks evaluated the phenotypic sensitivity of the tested strains to antibiotics. Five multiplex PCR assays were performed using primer pairs for specific detection of antibiotic resistance genes and staphylococcal enterotoxin A to E genes. Results: Selected antimicrobial agent susceptibility testing revealed 100% of such in in vitro conditions to cefoxitin among strains of Staphylococcus sciuri and S. chromogenes. The blaZ (for ß-lactam) and mecA (for methicillin resistance) genes were in 58.3% and 27.5% of strains, respectively. Among genes resistant to tetracyclines, tetK was most frequent. Fewer (CNS) strains showed genes resistant to macrolides, lincosamides, and florfenicol/chloramphenicol. Multiplex PCR for classical enterotoxins (A-E) detected the see gene in two S. hominis strains, while the seb gene producing enterotoxin B was found in one strain of S. epidermidis. Conclusion: CNS strains of Staphylococcus isolated from poultry were either phenotypically or genotypically multidrug resistant. Testing for the presence of the five classical enterotoxin genes showed that CNS strains, as in the case of S. aureus strains, can be a source of food intoxications.
Mostrar más [+] Menos [-]Detection of antibiotic resistance and classical enterotoxin genes in coagulase -negative staphylococci isolated from poultry in Poland Texto completo
2019
Pyzik Ewelina | Marek Agnieszka | Stępień-Pyśniak Dagmara | Urban-Chmiel Renata | Jarosz Łukasz S. | Jagiełło-Podębska Izabella
Introduction: The study sought to characterise antimicrobial resistance among coagulase-negative Staphylococcus (CNS) species recovered from broiler chickens and turkeys in Poland including the presence of 12 antimicrobial resistance genes and five classical genes of staphylococcal enterotoxins. Material and Methods: A panel of 11 antimicrobial disks evaluated the phenotypic sensitivity of the tested strains to antibiotics. Five multiplex PCR assays were performed using primer pairs for specific detection of antibiotic resistance genes and staphylococcal enterotoxin A to E genes. Results: Selected antimicrobial agent susceptibility testing revealed 100% of such in in vitro conditions to cefoxitin among strains of Staphylococcus sciuri and S. chromogenes. The blaZ (for ß-lactam) and mecA (for methicillin resistance) genes were in 58.3% and 27.5% of strains, respectively. Among genes resistant to tetracyclines, tetK was most frequent. Fewer (CNS) strains showed genes resistant to macrolides, lincosamides, and florfenicol/chloramphenicol. Multiplex PCR for classical enterotoxins (A-E) detected the see gene in two S. hominis strains, while the seb gene producing enterotoxin B was found in one strain of S. epidermidis. Conclusion: CNS strains of Staphylococcus isolated from poultry were either phenotypically or genotypically multidrug resistant. Testing for the presence of the five classical enterotoxin genes showed that CNS strains, as in the case of S. aureus strains, can be a source of food intoxications.
Mostrar más [+] Menos [-]In vitro evaluation of chitosan-DNA plasmid complex encoding Jembrana disease virus Env-TM protein as a vaccine candidate Texto completo
2019
Ishak, Januar | Unsunnidhal, Lalu | Martien, Ronny | Kusumawati, Asmarani
In vitro evaluation of chitosan-DNA plasmid complex encoding Jembrana disease virus Env-TM protein as a vaccine candidate Texto completo
2019
Ishak, Januar | Unsunnidhal, Lalu | Martien, Ronny | Kusumawati, Asmarani
Introduction: The development of Jembrana disease vaccine is an important effort to prevent losses in the Bali cattle industry in Indonesia. This study aims to prepare a Jembrana DNA vaccine encoding the transmembrane portion of the envelope protein in pEGFP-C1 and test the success of its delivery in culture cells using a chitosan-DNA complex. Material and Methods: Cloning of the DNA vaccine was successfully performed on E. coli DH5α and confirmed by colony PCR, restriction analysis and sequencing. The plasmids were prepared as a chitosan complex using the complex coacervation method and physicochemically characterised using a particle size analyser. A transfection assay was performed in HeLa cells with 4 h exposure, and mRNA expression was assessed at 24 h post transfection. Results: With a 1:2 (wt./wt.) ratio of DNA and chitosan, the complexes have a mean diameter of 236 nm, zeta potential value of + 17.9 mV, and showed no high toxicity potential in the HeLa cells. This complex successfully delivered the DNA into cells, as shown by the presence of a specific RT-PCR product (336 bp). However, the real-time PCR analysis showed that the delivery with chitosan complex resulted in lower target mRNA expression when compared with a commercial transfecting agent. Conclusion: pEGFP-env-tm JDV as a candidate vaccine can be delivered as the chitosan-DNA complex and be expressed at the transcription level in vitro. This initial study will be used for further improvement and evaluation in vivo.
Mostrar más [+] Menos [-]In vitro evaluation of chitosan-DNA plasmid complex encoding Jembrana disease virus Env-TM protein as a vaccine candidate Texto completo
2019
Ishak Januar | Unsunnidhal Lalu | Martien Ronny | Kusumawati Asmarani
Introduction: The development of Jembrana disease vaccine is an important effort to prevent losses in the Bali cattle industry in Indonesia. This study aims to prepare a Jembrana DNA vaccine encoding the transmembrane portion of the envelope protein in pEGFP-C1 and test the success of its delivery in culture cells using a chitosan-DNA complex.
Mostrar más [+] Menos [-]Comparison of systemic effects of midazolam, ketamine, and isoflurane anaesthesia in rabbits Texto completo
2019
Atalan, Güneri | Atalan, Gültekin | Erol, Hanifi | Erol, Muharrem | Atasever, Ayhan | Doğan, Zafer | Güneş, Vehbi | Yönez, M Kaan | Keleş, Ihsan
Comparison of systemic effects of midazolam, ketamine, and isoflurane anaesthesia in rabbits Texto completo
2019
Atalan, Güneri | Atalan, Gültekin | Erol, Hanifi | Erol, Muharrem | Atasever, Ayhan | Doğan, Zafer | Güneş, Vehbi | Yönez, M Kaan | Keleş, Ihsan
Introduction: Clinical doses of anaesthetic agents were administered to rabbits and effects on the brain, heart, and liver were investigated biochemically and histopathologically. Material and Methods: The rabbits were randomly divided into three main groups (16 rabbits each) and each group into study (n = 8) and control (n = 8) groups. All study group rabbits received 3 mg/kg of midazolam (M) intramuscularly. Group 1.1 (M) received nothing further, group 2.1 (MK) also received 25 mg/kg of ketamine, and group 3.1 (MKI) besides ketamine was also given 2% isoflurane to induce anaesthesia for 30 min. NaCl solution in the same volume as midazolam and ketamine was injected into the controls. Results: In clinical evaluation significant differences were detected in respiratory and heart rates. In blood gas analysis the PO2 and PCO2 values showed statistical differences in anaesthesia intervals. Significant biochemical value changes were recorded in creatine kinase-Mb, glucose, and total protein. Histopathological liver examinations revealed higher total apoptotic and normal cell numbers in the MK than in the M and MKI groups. Apoptotic cell numbers were statistically significant in M and MK groups. Conclusion: Anaesthetic agents may increase programmed apoptosis. The MKI anaesthetics combination was found to cause less cell destruction in general than the other study groups. It was indicated that MKI was the safer anaesthetic combination in rabbits.
Mostrar más [+] Menos [-]Comparison of systemic effects of midazolam, ketamine, and isoflurane anaesthesia in rabbits Texto completo
2019
Atalan Güneri | Atalan Gültekin | Erol Hanifi | Erol Muharrem | Atasever Ayhan | Doğan Zafer | Güneş Vehbi | Yönez M. Kaan | Keleş Ihsan
Introduction: Clinical doses of anaesthetic agents were administered to rabbits and effects on the brain, heart, and liver were investigated biochemically and histopathologically. Material and Methods: The rabbits were randomly divided into three main groups (16 rabbits each) and each group into study (n = 8) and control (n = 8) groups. All study group rabbits received 3 mg/kg of midazolam (M) intramuscularly. Group 1.1 (M) received nothing further, group 2.1 (MK) also received 25 mg/kg of ketamine, and group 3.1 (MKI) besides ketamine was also given 2% isoflurane to induce anaesthesia for 30 min. NaCl solution in the same volume as midazolam and ketamine was injected into the controls. Results: In clinical evaluation significant differences were detected in respiratory and heart rates. In blood gas analysis the PO2 and PCO2 values showed statistical differences in anaesthesia intervals. Significant biochemical value changes were recorded in creatine kinase-Mb, glucose, and total protein. Histopathological liver examinations revealed higher total apoptotic and normal cell numbers in the MK than in the M and MKI groups. Apoptotic cell numbers were statistically significant in M and MK groups. Conclusion: Anaesthetic agents may increase programmed apoptosis. The MKI anaesthetics combination was found to cause less cell destruction in general than the other study groups. It was indicated that MKI was the safer anaesthetic combination in rabbits.
Mostrar más [+] Menos [-]Construction and activity analyses of single functional mouse peroxiredoxin 6 (Prdx6) Texto completo
2019
Wang, Lu-Lu | Lu, Shi-Ying | Hu, Pan | Fu, Bao-Quan | Li, Yan-Song | Zhai, Fei-Fei | Ju, Dan-Di | Zhang, Shi-Jun | Su, Bing | Zhou, Yu | Liu, Zeng-Shan | Ren, Hong-Lin
Construction and activity analyses of single functional mouse peroxiredoxin 6 (Prdx6) Texto completo
2019
Wang, Lu-Lu | Lu, Shi-Ying | Hu, Pan | Fu, Bao-Quan | Li, Yan-Song | Zhai, Fei-Fei | Ju, Dan-Di | Zhang, Shi-Jun | Su, Bing | Zhou, Yu | Liu, Zeng-Shan | Ren, Hong-Lin
Introduction: Peroxiredoxin 6 (Prdx6) is a bifunctional protein with glutathione peroxidase activity and phospholipase A2 activity. Previous studies have shown a significant positive correlation between the intracellular survival ability of Brucella and Prdx6. Here, the Prdx6 enzyme with a single activity was constructed to facilitate study of the relationship between the single function of Prdx6 and Brucella infection. Material and Methods: The target open reading frame (ORF) DNAs of Prdx6 with a single active centre were prepared using gene splicing by overlap extension PCR (SOE-PCR), and the recombinant eukaryotic expression plasmids inserted by Prdx6 with the single activity centre were constructed and transfected into murine Raw264.7 macrophages. The glutathione peroxidase activity and phospholipase A2 activity of the constructed Prdx6 were examined. Results: The core centres (Ser³² and Cys⁴⁷) of Prdx6 were successfully mutated by changing the 94ᵗʰ nucleotide from T to G and the 140ᵗʰ nucleotide from G to C in the two enzyme activity cores, respectively. The constructed recombinant plasmids of Prdx6 with the single active centre were transfected into murine macrophages showing the expected single functional enzyme activity, which MJ33 or mercaptosuccinate inhibitors were able to inhibit. Conclusion: The constructed mutants of Prdx6 with the single activity cores will be a benefit to further study of the biological function of Prdx6 with different enzyme activity.
Mostrar más [+] Menos [-]Construction and activity analyses of single functional mouse peroxiredoxin 6 (Prdx6) Texto completo
2019
Wang Lu-Lu | Lu Shi-Ying | Hu Pan | Fu Bao-Quan | Li Yan-Song | Zhai Fei-Fei | Ju Dan-Di | Zhang Shi-Jun | Su Bing | Zhou Yu | Liu Zeng-Shan | Ren Hong-Lin
Introduction: Peroxiredoxin 6 (Prdx6) is a bifunctional protein with glutathione peroxidase activity and phospholipase A2 activity. Previous studies have shown a significant positive correlation between the intracellular survival ability of Brucella and Prdx6. Here, the Prdx6 enzyme with a single activity was constructed to facilitate study of the relationship between the single function of Prdx6 and Brucella infection.
Mostrar más [+] Menos [-]Impact of prepartum body condition score loss on metabolic status during the transition period and subsequent fertility in Brown Swiss dairy cows Texto completo
2019
Çolakoğlu, Hatice Esra | Yazlık, Murat Onur | Pekcan, Mert | Kaya, Ufuk | Kaçar, Cihan | Vural, Mehmet Rıfat | Kurt, Serdal | Yildirim, Merve Menekse | Bas, Ahmet | Küplülü, Şükrü
Impact of prepartum body condition score loss on metabolic status during the transition period and subsequent fertility in Brown Swiss dairy cows Texto completo
2019
Çolakoğlu, Hatice Esra | Yazlık, Murat Onur | Pekcan, Mert | Kaya, Ufuk | Kaçar, Cihan | Vural, Mehmet Rıfat | Kurt, Serdal | Yildirim, Merve Menekse | Bas, Ahmet | Küplülü, Şükrü
The objectives of this study were to determine the role of a fall in pre-calving body condition score (BCS) in postpartum metabolic status and reproductive outcomes, and gauge the indicativeness of blood metabolites during the transition period. Cows were grouped based on BCS loss between days −14 ±3 and 0 relative to calving. Cows that lost no BCS were the BCS control group (BCS-C), cows that lost 0.25 BCS points the low BCS loss group (BCS-L), and those that lost 0.5 points or more the high BCS loss (BCS-H) group. Blood was taken on days −14 ±3, 3, 14, and 30 ±4 for determination of comprehensive metabolic panel biomarker levels. Beta-hydroxybutyric acid (BHBA) levels were quantified on postpartum examination days. Vaginal discharge scores, ovarian activity on day 30 ±4, and subsequent fertility parameters were evaluated. The BCS-H cows had lower mean Ca concentrations before calving and on day 3, when the group’s BHBA and CK were higher (P < 0.05); on day 14 they had higher AST concentrations (P < 0.05). The BCS-L cows had greater bilirubin levels (P < 0.05). The BCS-H cows had lower cyclicity and higher endometritis rates. First service pregnancy rates were 50%, 50%, and 61.9%, open days 96.8, 95.75, and 89.2, and overall pregnancy rates 56.25%, 65%, and 80.95 % in the BCS-H, BCS-L, and BCS-C groups, respectively. Prepartum BCS loss of ≥ 0.5 points could be associated with Brown Swiss cow low Ca and BHBA concentrations early postpartum, and with subsequent uterine health and overall pregnancy rate. Prepartum Ca concentration might be a prognostic biomarker for postpartum metabolic status and reproductive outcomes.
Mostrar más [+] Menos [-]Impact of prepartum body condition score loss on metabolic status during the transition period and subsequent fertility in Brown Swiss dairy cows Texto completo
2019
Çolakoğlu Hatice Esra | Yazlık Murat Onur | Pekcan Mert | Kaya Ufuk | Kaçar Cihan | Vural Mehmet Rıfat | Kurt Serdal | Yildirim Merve Menekse | Bas Ahmet | Küplülü Şükrü
The objectives of this study were to determine the role of a fall in pre-calving body condition score (BCS) in postpartum metabolic status and reproductive outcomes, and gauge the indicativeness of blood metabolites during the transition period.
Mostrar más [+] Menos [-]African swine fever virus – persistence in different environmental conditions and the possibility of its indirect transmission Texto completo
2019
Mazur-Panasiuk, Natalia | Żmudzki, Jacek | Woźniakowski, Grzegorz
African swine fever virus – persistence in different environmental conditions and the possibility of its indirect transmission Texto completo
2019
Mazur-Panasiuk, Natalia | Żmudzki, Jacek | Woźniakowski, Grzegorz
Since 2007, African swine fever (ASF) has posed a serious threat to the European swine industry. In Poland, the numbers of reported outbreaks in pigs and affected areas grow every year. In 2018, the disease was noted in Western Europe, in Belgium specifically, where several hundred infected wild boars have been detected so far. In 2018, the virus unexpectedly emerged in pig holdings in eastern China, northern Mongolia, Vietnam, and Cambodia, causing worldwide concern about its further spread. Since there is still no vaccine available, the only approach to control the disease is biosecurity. Identification of potential sources of the virus is extremely important in light of its phenomenal survivability. The review summarises the current knowledge about ASFV survivability and resistance to environmental conditions, and discusses the role of indirect contact in spreading the disease.
Mostrar más [+] Menos [-]African swine fever virus – persistence in different environmental conditions and the possibility of its indirect transmission Texto completo
2019
Mazur-Panasiuk Natalia | Żmudzki Jacek | Woźniakowski Grzegorz
Since 2007, African swine fever (ASF) has posed a serious threat to the European swine industry. In Poland, the numbers of reported outbreaks in pigs and affected areas grow every year. In 2018, the disease was noted in Western Europe, in Belgium specifically, where several hundred infected wild boars have been detected so far. In 2018, the virus unexpectedly emerged in pig holdings in eastern China, northern Mongolia, Vietnam, and Cambodia, causing worldwide concern about its further spread. Since there is still no vaccine available, the only approach to control the disease is biosecurity. Identification of potential sources of the virus is extremely important in light of its phenomenal survivability. The review summarises the current knowledge about ASFV survivability and resistance to environmental conditions, and discusses the role of indirect contact in spreading the disease.
Mostrar más [+] Menos [-]Epidemiology and antibiogram of Riemerella anatipestifer isolated from waterfowl slaughterhouses in Taiwan Texto completo
2019
Chang, Fei-Fei | Chen, Chang-Chieh | Wang, Shao-Hung | Chen, Chiou-Lin
Epidemiology and antibiogram of Riemerella anatipestifer isolated from waterfowl slaughterhouses in Taiwan Texto completo
2019
Chang, Fei-Fei | Chen, Chang-Chieh | Wang, Shao-Hung | Chen, Chiou-Lin
Introduction: Laryngeal swab samples collected from three waterfowl slaughterhouses in central Taiwan were cultured and suspected isolates of Riemerella anatipestifer were identified by API 20NE and 16S rDNA PCR. Material and Methods: Serum agglutination was used for serotyping, and antimicrobial susceptibility was tested. Results: Seventy-six R. anatipestifer isolates were detected, and the prevalences in the ducks and geese were 12.3% (46/375) and 8.0% (30/375), respectively. The positive isolation rates were 65.6% for all arriving waterfowl, 76.0% for birds in the holding area, 1.6% for defeathered carcasses, but zero for degummed carcasses. A PCR examination detected R. anatipestifer in the slaughtering area frequently. Serotype B was dominant in both duck (34.8%) and goose (46.7%) isolates, but the wide serotype distribution may very well impede vaccination development. All isolates were resistant to colistin, and 79.7% were resistant to more than three common antibiotics. Conclusion: The results proved that most ducks had encountered antibiotic-resistant R. anatipestifer in rearing, which suggests that the bacterium circulates in asymptomatic waterfowl. It is worth noting that most waterfowl farms were found to harbour R. anatipestifer, and contaminated slaughterhouses are a major risk factor in its spread. Effective prevention and containment measures should be established there to interrupt the transmission chain of R. anatipestifer.
Mostrar más [+] Menos [-]Epidemiology and antibiogram of Riemerella anatipestifer isolated from waterfowl slaughterhouses in Taiwan Texto completo
2019
Chang Fei-Fei | Chen Chang-Chieh | Wang Shao-Hung | Chen Chiou-Lin
Introduction: Laryngeal swab samples collected from three waterfowl slaughterhouses in central Taiwan were cultured and suspected isolates of Riemerella anatipestifer were identified by API 20NE and 16S rDNA PCR.
Mostrar más [+] Menos [-]The Independent Spirit of Turkey: Wild Horse Texto completo
2019
HACAN, Özlem | KOÇAK, Serdar | ÇELİKELOĞLU, Koray | BOZKURT, Zehra | ERDOĞAN, Metin | TEKERLİ, Mustafa
In the past, horses were used for pulling and riding at agriculture and transportation services. As a result of the increase in mechanization theyhave lost their own importance in these areas, and then they were released into the nature by owners. These wild horses named Yılkı werespending the winter in nature during their first years and then were captured in the spring for using in farm activities. Due to they have notbeen used for this purpose today, the Yılkı population increased. Today, wild horses are living in mainly Karaman (Karadağ), Kayseri (ErciyesMountain), Manisa (Spil and Yunt Mountains), Afyon (Akdağ, Kumalar Mountain, Emirdede Plateau), Samsun (Kızılırmak Basin), Izmir(Gediz Basin), Antalya (Eynif Plain and Beydağlar) provinces, Kaz Mountains and in different regions of Turkey in groups of 15-20 heads.By adapting to wildlife and increasing their number, these wild horses began to pose a threat to other wild animals and agricultural land in theregion due to the food shortage during the heavy winter months. Due to this reason, the studies are being carried out for recording wild horses,making their care and treatments, and reducing the number of horses to the level of capacity of living area. This paper has focused on wildhorses, their regions and some methods used to be kept their numbers under the control.
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