1
|
Ghoneim IM, Al-Mubarak AH, Fayez MM, Waheed MM, El-Bahr SM. Impact of antibiotics on spermatozoa quality and bacterial load of chilled-stored camels (Camelus dromedarius) semen. Trop Anim Health Prod 2021; 54:21. [PMID: 34936039 DOI: 10.1007/s11250-021-03002-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 11/25/2021] [Indexed: 11/24/2022]
Abstract
This experiment was conducted to assess the effect of different antibiotics in tris-fructose egg yolk-based diluent on bacterial load and sperm quality of dromedary camels during processing and cold storage. Ten semen ejaculates were collected from five male dromedary camels. Each sample was fractioned into four equally divided aliquots and diluted in one of four tris-fructose egg yolk. The first extender contained no antibiotic (NC). The second extender included streptomycin sulphate (1000 μg/ml) and benzyl penicillin (1000 IU/ml) (SP). The third extender was supplied with 250 μg/ml gentamicin sulphate (Gent). The fourth extender contained 500 μg/ml gentamicin sulphate,100 μg/ml tylosin tartrate, 300 μg/ml lincomycin hydrochloride and 600 μg/ml spectinomycin hydrochloride (GTLS). After dilution, the extended semen samples were cooled to 5 °C within 2 h and finally stored at 5 °C for 72 h. Microbial concentration, motility of spermatozoa, live spermatozoa, plasma membrane and acrosome integrity percentages were evaluated just after dilution at 35 °C, 0, 24, 48 and 72 h from the start of cooling to 5 °C. The results revealed that the diluent containing gentamicin had significantly (P<0.05) maximum motility percentage at the different examination intervals. The pattern of live spermatozoa percentage was varied between the different treatments at different examination intervals. The diluent supplied with Gent was distinguished with a significant peak percentage (P<0.05) of swelled spermatozoa among the other antibiotics supplied diluents. The number of colony-forming units isolated from the semen samples kept in diluent containing no antibiotics was significantly (P<0.05) higher than that isolated from the diluents supplemented with antibiotics. In conclusion, the semen diluents fortified with gentamicin generally keep the motility, acrosomal and plasma membrane integrity and live spermatozoa for 72-h preservation of dromedary semen.
Collapse
Affiliation(s)
- I M Ghoneim
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, P.O. 400, Al-Ahsa, 31982, Al-Hufof, Kingdom of Saudi Arabia.,Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, 12515, Egypt
| | - A H Al-Mubarak
- Ministry of Agriculture, Riyadh, Kingdom of Saudi Arabia
| | - M M Fayez
- Ministry of Agriculture, Riyadh, Kingdom of Saudi Arabia.,Veterinary Serum and Vaccine Research Institute, Cairo, Egypt
| | - M M Waheed
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, P.O. 400, Al-Ahsa, 31982, Al-Hufof, Kingdom of Saudi Arabia. .,Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, 12515, Egypt.
| | - S M El-Bahr
- Department of Physiology, Biochemistry and Pharmacology (Biochemistry), College of Veterinary Medicine, King Faisal University, P.O. 400, Al-Ahsa, 31982, Al-Hufof, Kingdom of Saudi Arabia.,Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| |
Collapse
|
2
|
Efficacy of Two Antibiotic-Extender Combinations on Mycoplasma bovis in Bovine Semen Production. Pathogens 2020; 9:pathogens9100808. [PMID: 33008110 PMCID: PMC7601584 DOI: 10.3390/pathogens9100808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 11/24/2022] Open
Abstract
Mycoplasma bovis is an important bovine pathogen. Artificial insemination (AI) using contaminated semen can introduce the agent into a naïve herd. Antibiotics, most often gentamycin, tylosin, lincomycin, spectinomycin (GTLS) combination are added to semen extender to prevent transmission of pathogenic bacteria and mycoplasmas. In a commercial AI straw production system with industrial scale procedures, we analyzed the mycoplasmacidal efficacy of GTLS and ofloxacin on M. bovis ATCC and wild type strain isolated from commercial AI straws. The strains were spiked at two concentrations (106 and 103 CFU/mL) into semen. Viable M. bovis in frozen semen straws was detected by enrichment culture and real-time PCR. We also compared different protocols to extract M. bovis DNA from spiked semen. None of the antibiotic protocols had any effect on the viability of either of the M. bovis strains at high spiking concentration. At low concentration, the wild type was inhibited by all other protocols, except low GTLS, whereas the ATCC strain was inhibited only by high GTLS. The InstaGene™ matrix was the most effective method to extract M. bovis DNA from semen. When there is a low M. bovis contamination level in semen, GTLS used at high concentrations, in accordance with Certified Semen Services requirements, is more efficient than GTLS used at concentrations stated in the OIE Terrestrial Code.
Collapse
|
3
|
García-Galán A, De la Fe C, Gomis J, Bataller E, Sánchez A, Quereda JJ, García-Roselló E, Gómez-Martín A. The addition of Lactobacillus spp. negatively affects Mycoplasma bovis viability in bovine cervical mucus. BMC Vet Res 2020; 16:251. [PMID: 32690006 PMCID: PMC7370443 DOI: 10.1186/s12917-020-02454-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 07/03/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Mycoplasma bovis is an important pathogen for the cattle industry worldwide causing significant economic losses. Several transmission routes, including those related to reproduction, have been described. Indeed, the pathogen can colonize the female reproductive tract after artificial insemination (AI) with contaminated semen. Lactobacillus spp.-based probiotics have been used for vaginal dysbiosis treatment in women and cows although their role in controlling cervico-vaginal infections due to M. bovis is unknown. The objective of the present work is to assess the viability of M. bovis (PG45, NCTC 10131) in experimentally contaminated cervical mucus after the addition of Lactobacillus spp. at different concentrations as a competing agent and pH acidifier. RESULTS The addition of probiotic at a concentration higher than 108 colony forming units (CFU/mL had a detrimental effect (P < 0.05) on mycoplasma viability in cervical mucus. This coincided with a significant LAB growth and an important decrease in pH from 8.4 to 5.6 (P < 0.05). However, after the addition of less concentrated probiotic, M. bovis survival was not affected and there was no significant LAB growth despite the drop of pH from 8.4 to 6.73 (P < 0.05). CONCLUSION The addition of concentrations higher than 108 CFU/mL of Lactobacillus spp. negatively affects M. bovis viability in bovine cervical mucus under in vitro conditions. Although the effect observed on the pathogen viability seems to be related to the pH decrease after LAB proliferation in cervical mucus, further studies are necessary to elucidate if other factors are implicated. Nevertheless, the administration of Lactobacillus spp.-based probiotics might be used in the future to control M. bovis proliferation in the cervico-vaginal tract of cows.
Collapse
Affiliation(s)
- A García-Galán
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100, Murcia, Spain
| | - C De la Fe
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100, Murcia, Spain.
| | - J Gomis
- Microbiological Agents Associated with Reproduction (ProVaginBio) Research Group, Universidad Cardenal Herrera-CEU, CEU Universities, 46113, Valencia, Spain
| | - E Bataller
- Microbiological Agents Associated with Reproduction (ProVaginBio) Research Group, Universidad Cardenal Herrera-CEU, CEU Universities, 46113, Valencia, Spain
| | - A Sánchez
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100, Murcia, Spain
| | - J J Quereda
- Microbiological Agents Associated with Reproduction (ProVaginBio) Research Group, Universidad Cardenal Herrera-CEU, CEU Universities, 46113, Valencia, Spain
| | - E García-Roselló
- Microbiological Agents Associated with Reproduction (ProVaginBio) Research Group, Universidad Cardenal Herrera-CEU, CEU Universities, 46113, Valencia, Spain
| | - A Gómez-Martín
- Ruminant Health Research Group, Department of Animal Health, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100, Murcia, Spain.,Microbiological Agents Associated with Reproduction (ProVaginBio) Research Group, Universidad Cardenal Herrera-CEU, CEU Universities, 46113, Valencia, Spain
| |
Collapse
|
4
|
The Addition of Lactobacillus spp., Enrofloxacin or Doxycycline Negatively Affects the Viability of Mycoplasma bovis in Diluted Bovine Semen. Animals (Basel) 2020; 10:ani10050837. [PMID: 32414088 PMCID: PMC7278450 DOI: 10.3390/ani10050837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 12/02/2022] Open
Abstract
Simple Summary Mycoplasma bovis is an important infectious agent in cattle. The pathogen may cause a wide range of clinical signs, including mastitis, arthritis, pneumonia and reproductive disorders. Artificial insemination with contaminated semen may be a source of infection in infection-free areas or herds. Hence, the antimicrobials used in the preparation of seminal doses should be re-evaluated, or alternative measures to antimicrobials should be tested. This in vitro study aims to evaluate novel strategies to reduce the risk of the transmission of the pathogen through contaminated semen during artificial insemination. Hence, we assess the effect of the addition of (1) the antimicrobial enrofloxacin, (2) the antimicrobial doxycycline, or (3) a probiotic of human origin that contains acid lactic bacteria of the genus Lactobacillus, on the viability of Mycoplasma bovis in diluted bull semen in a Tris-citrate-fructose medium. The data show that the pathogen is negatively affected by the addition of 0.125 μg/mL of enrofloxacin, 0.0625 μg/mL of doxycycline, or the probiotic at a concentration of 3.24 × 106 or 3.24 × 108 colony-forming units/mL in diluted semen. Our results are promising in the field, as they may support new strategies to reduce the risk of the transmission of Mycoplasma bovis through artificial insemination. Abstract Mycoplasma bovis is an important etiologic agent of bovine mycoplasmosis in cattle. Different transmission routes have been described, including those related to reproduction. The presence of mycoplasma in semen has led to its appearance in infection-free areas through artificial insemination (AI). Semen was recently reported to be the initial source of two M. bovis mastitis outbreaks in two closed dairy herds in Finland. This questions the effectiveness of the antimicrobials currently used in semen extenders to control the pathogens in contaminated semen. They should be re-evaluated, or alternative measures to antimicrobials should be tested to obtain M. bovis-free semen. This in vitro study aimed to assess different strategies to reduce the risk of transmission of M. bovis through AI technologies. The viability of M. bovis (PG45, NCTC 10131) in bull semen diluted (DS) in a Tris-citrate-fructose solution was tested, after the addition of enrofloxacin, doxycycline or a Lactobacillus spp.-based probiotic. The data show the susceptibility of the pathogen to the addition of 0.125 μg/mL of enrofloxacin or 0.0625 μg/mL of doxycycline and to the addition of the probiotic at a concentration of 3.24 × 106 colony forming units (CFU)/mL or 3.24 × 108 CFU/mL in DS. The Tris-citrate-fructose medium negatively affected the viability of M. bovis, although this effect was lower than that observed after the addition of the probiotic and antimicrobials (p < 0.05). Our results may support new strategies for reducing the risk of M. bovis transmission through AI.
Collapse
|
5
|
Goularte KL, Voloski FLS, Redú JFM, Ferreira CER, Vieira AD, Duval EH, Mondadori RG, Lucia T. Antibiotic resistance in microorganisms isolated in a bull semen stud. Reprod Domest Anim 2020; 55:318-324. [PMID: 31961046 DOI: 10.1111/rda.13621] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 12/29/2019] [Indexed: 11/28/2022]
Abstract
Many microorganisms from various sources may be present in ejaculates of bulls. This study identified and isolated bacteria from bull sperm samples in a commercial stud and evaluated their resistance to antibiotics. The number of colony-forming units was determined in semen samples collected at distinct steps during freezing and thawing. The minimum inhibitory concentration and the minimum bactericidal concentration were determined for four antibiotics commonly used in commercial studs. A total of 135 microorganisms from 25 genera were isolated. After a sensitivity test, all evaluated microorganisms (n = 55) were resistant to penicillin and most of them were resistant to tylosin and lincomycin (n = 54). Resistance to all tested antibiotics was observed in 22% of all isolates, whereas only 3.9% of the isolates were inhibited by the tested antibiotics at the concentrations recommended by the international legislation. As the isolated microorganisms presented high resistance to frequently used antibiotics, sensitivity tests should be periodically conducted in commercial bull semen studs to prevent the use of contaminated semen in artificial insemination.
Collapse
Affiliation(s)
- Karina L Goularte
- ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Flávia L S Voloski
- Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Lipoa, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Josiara F M Redú
- Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Lipoa, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Carlos E R Ferreira
- ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Arnaldo D Vieira
- ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Eduarda H Duval
- Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Lipoa, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Rafael G Mondadori
- ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Instituto de Biologia, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Thomaz Lucia
- ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| |
Collapse
|
6
|
Ishaq R, Ansari MS, Rakha BA, Qadeer S, Akhter S. Evaluation of Enrofloxacin for Use in Cryopreservation of Zebu Bull (Bos indicus) Semen. Biopreserv Biobank 2019; 17:546-552. [DOI: 10.1089/bio.2018.0133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Razia Ishaq
- Department of Zoology, Government College Women University, Sialkot, Pakistan
| | - Muhammad S. Ansari
- Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Bushra A. Rakha
- Department of Wildlife Management, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Saima Qadeer
- Department of Zoology, University of Education, Jauharabad Campus, Khushab, Pakistan
| | - Shamim Akhter
- Department of Zoology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| |
Collapse
|
7
|
Gille L, Callens J, Supré K, Boyen F, Haesebrouck F, Van Driessche L, van Leenen K, Deprez P, Pardon B. Use of a breeding bull and absence of a calving pen as risk factors for the presence of Mycoplasma bovis in dairy herds. J Dairy Sci 2018; 101:8284-8290. [DOI: 10.3168/jds.2018-14940] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 05/26/2018] [Indexed: 11/19/2022]
|
8
|
Haapala V, Pohjanvirta T, Vähänikkilä N, Halkilahti J, Simonen H, Pelkonen S, Soveri T, Simojoki H, Autio T. Semen as a source of Mycoplasma bovis mastitis in dairy herds. Vet Microbiol 2018. [PMID: 29519526 DOI: 10.1016/j.vetmic.2018.02.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Mycoplasma bovis infections are responsible for substantial economic losses in the cattle industry, have significant welfare effects and increase antibiotic use. The pathogen is often introduced into naive herds through healthy carrier animals. In countries with a low prevalence of M. bovis, transmission from less common sources can be better explored as the pathogen has limited circulation compared to high prevalence populations. In this study, we describe how M. bovis was introduced into two closed and adequately biosecure dairy herds through the use of contaminated semen during artificial insemination (AI), leading to mastitis outbreak in both herds. Epidemiological analysis did not reveal an infection source other than semen. In both farms the primary clinical cases were M. bovis mastitis in cows inseminated with the semen of the same bull four weeks before the onset of the disease. One semen straw derived from the semen tank on the farm and other semen lots of this bull were positive for M. bovis. In contrast, semen samples were negative from other bulls that had been used for insemination in previous or later oestrus to those cows with M. bovis mastitis. Furthermore, cgMLST of M. bovis isolates supported the epidemiological results. To our knowledge this is the first study describing the introduction of M. bovis infection into a naive dairy herd via processed semen. The antibiotics used in semen extenders should be re-evaluated in order to provide farms with M. bovis-free semen or tested M. bovis-free semen should be available.
Collapse
Affiliation(s)
- Vera Haapala
- Department of Production Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Paroninkuja 20, Saarentaus, 04920, Finland.
| | - Tarja Pohjanvirta
- Finnish Food Safety Authority Evira, Research and Laboratory Department, Veterinary Bacteriology and Pathology, Neulaniementie 4, Kuopio, 70210, Finland.
| | - Nella Vähänikkilä
- Finnish Food Safety Authority Evira, Research and Laboratory Department, Veterinary Bacteriology and Pathology, Neulaniementie 4, Kuopio, 70210, Finland.
| | - Jani Halkilahti
- National Health and Welfare Institute, Bacterial Infections, Mannerheimintie 166, Helsinki, 00271, Finland.
| | - Henri Simonen
- VikingGenetics, Korpikyläntie 77, Hollola, 15871, Finland.
| | - Sinikka Pelkonen
- Finnish Food Safety Authority Evira, Research and Laboratory Department, Veterinary Bacteriology and Pathology, Neulaniementie 4, Kuopio, 70210, Finland.
| | - Timo Soveri
- Department of Production Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Paroninkuja 20, Saarentaus, 04920, Finland.
| | - Heli Simojoki
- Department of Production Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Paroninkuja 20, Saarentaus, 04920, Finland.
| | - Tiina Autio
- Finnish Food Safety Authority Evira, Research and Laboratory Department, Veterinary Bacteriology and Pathology, Neulaniementie 4, Kuopio, 70210, Finland.
| |
Collapse
|
9
|
Gloria A, Contri A, Wegher L, Vignola G, Dellamaria D, Carluccio A. The effects of antibiotic additions to extenders on fresh and frozen-thawed bull semen. Anim Reprod Sci 2014; 150:15-23. [PMID: 25239841 DOI: 10.1016/j.anireprosci.2014.08.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 08/19/2014] [Accepted: 08/23/2014] [Indexed: 11/26/2022]
Abstract
Reproduction in dairy cows is based around the use of cryopreserved semen. Antibiotics are utilized to control bacterial contamination and growth in cryopreserved bull semen. The antibiotic resistance of some bacteria required the evaluation of new antibiotic combinations with a high level of antibacterial effectiveness and a negligible effect on spermatozoa. In this research, we studied the effect of the fluorinate carboxyquinolone ofloxacin and the combination of ceftiofur/tylosin on bull spermatozoa and in-field bacterial growth. In Experiment 1, the toxicity of different levels of ofloxacin and ceftiofur/tylosin was tested by the incubation of bull spermatozoa and the evaluation of sperm kinetic parameters, membranes and acrosome integrity after dilution, and at 60 and 120 min after incubation. The data reported in this study reveals that both antibiotic combinations, at all concentrations, seem to have a negligible effect on spermatozoa with respect to all of the parameters examined (p>0.05). Furthermore, progressive motility was significantly higher for sperm diluted with both antibiotic combinations compared with samples without antibiotics (p<0.01). In Experiment 2, the ability of ofloxacin or ceftiofur/tylosin to control bacterial growth during bovine semen cryopreservation was compared with the combination of gentamicin/tylosin/spectinomycin/lincomycin. A significant reduction in progressive motility was found in cooled semen with respect to all of the antibiotic treatments (p<0.05). However, the membrane integrity was found to significantly rise in frozen samples with, compared to samples without, antibiotics (p<0.05). In a bull, gentamicin, tylosin, spectinomycin, and lincomycin failed to control bacterial growth in the cryopreserved sample, while no such growth was found in samples extended with ceftiofur/tylosin or ofloxacin. In conclusion, both ceftiofur/tylosin and ofloxacin can be safely added to bull seminal extenders, and both can protect insemination doses from bacteria that are resistant to other antibiotic combinations.
Collapse
Affiliation(s)
- Alessia Gloria
- Faculty of Veterinary Medicine, University of Teramo, Viale Crispi 212, 64100 Teramo, Italy
| | - Alberto Contri
- Faculty of Veterinary Medicine, University of Teramo, Viale Crispi 212, 64100 Teramo, Italy.
| | - Laura Wegher
- Provincial Breeders Federation of Trento, Via delle Bettine 40, 38121 Trento, Italy
| | - Giorgio Vignola
- Faculty of Veterinary Medicine, University of Teramo, Viale Crispi 212, 64100 Teramo, Italy
| | - Debora Dellamaria
- Istituto Zooprofilattico Sperimentale delle Venezie SCT 5 Trento, Via Lavisotto 129, 38121 Trento, Italy
| | - Augusto Carluccio
- Faculty of Veterinary Medicine, University of Teramo, Viale Crispi 212, 64100 Teramo, Italy
| |
Collapse
|
10
|
Becher AC, Spergser J, Aurich C, Zottler E, Aurich JE, Schäfer-Somi S. Cooled Storage of Canine Semen:in vitroEffects of Different Concentrations of an Antibiotic Combination on Growth of Mollicutes. Reprod Domest Anim 2013; 48:961-6. [DOI: 10.1111/rda.12194] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 05/13/2013] [Indexed: 11/30/2022]
Affiliation(s)
- AC Becher
- Centre for Artificial Insemination and Embryo Transfer; University of Veterinary Sciences; Vienna Austria
| | - J Spergser
- Institute of Bacteriology; Mycology and Hygiene; University of Veterinary Sciences; Vienna Austria
| | - C Aurich
- Centre for Artificial Insemination and Embryo Transfer; University of Veterinary Sciences; Vienna Austria
| | - E Zottler
- Centre for Artificial Insemination and Embryo Transfer; University of Veterinary Sciences; Vienna Austria
| | - JE Aurich
- Division of Obstetrics; Gynecology and Andrology; University of Veterinary Sciences; Vienna Austria
| | - S Schäfer-Somi
- Centre for Artificial Insemination and Embryo Transfer; University of Veterinary Sciences; Vienna Austria
| |
Collapse
|
11
|
Kilburn C, Rooks DJ, McCarthy AJ, Murray RD. Antimicrobial Resistance in Some Gram-Negative Bacteria Isolated from the Bovine Ejaculate. Reprod Domest Anim 2013; 48:525-8. [DOI: 10.1111/rda.12127] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Accepted: 10/27/2012] [Indexed: 11/26/2022]
Affiliation(s)
- C Kilburn
- Institute of Translational Medicine and School of Veterinary Science; University of Liverpool; Neston; UK
| | - DJ Rooks
- Microbiology Research Group; Institute of Integrative Biology; University of Liverpool; Liverpool; UK
| | - AJ McCarthy
- Microbiology Research Group; Institute of Integrative Biology; University of Liverpool; Liverpool; UK
| | - RD Murray
- Institute of Translational Medicine and School of Veterinary Science; University of Liverpool; Neston; UK
| |
Collapse
|
12
|
Treatment and control of mycoplasma contamination in Plasmodium falciparum culture. Parasitol Res 2008; 104:181-4. [PMID: 18825414 DOI: 10.1007/s00436-008-1181-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2008] [Accepted: 08/27/2008] [Indexed: 10/21/2022]
Abstract
A comparative efficacy of four antibiotics, plasmocin (macrolid), Biomyc-1, -2, (tetracycline), and Biomyc-3, and Mycoplasma Removing Agent (quinolone derivatives) was determined for elimination of mycoplasma from Plasmodium falciparum culture. Presence of mycoplasma was detected using enzyme-PCR-based mycoplasma detection kit and survival of malaria parasite was determined in Giemsa's stained smear made from treated and untreated cultures. It was observed that a combination of Biomyc-1 and -2 killed malaria parasites within 24 h, whereas plasmocin and Biomyc-3 caused slow death of malaria parasite stretched over a period of 6 days. The only compound which did not kill malaria parasite and eradicated mycoplasma from P. falciparum culture was observed to be MRA.
Collapse
|
13
|
de Ruigh L, Bosch JC, Brus MC, Landman B, Merton JS. Ways to improve the biosecurity of bovine semen. Reprod Domest Anim 2006; 41:268-74. [PMID: 16869880 DOI: 10.1111/j.1439-0531.2006.00727.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Semen production and trade is a worldwide industry. A framework, based on international standards is awaiting international and national regulation. In the perspective of biosecurity of the final product, critical notes can be made according to the semen production regulation and product safety. Process description brings the obligatory health standards for the production bulls, collection and processing of semen, identification, registration, worldwide distribution and insemination into discussion. Test frequency, test quality and demands, way of sampling and test consistency can influence product safety. New scientific knowledge can influence the value of the regulation. Whether a country is free of notifiable disease should influence decisions regarding necessary tests for the production bulls. The biosecurity of the semen production process is influenced by several factors. The effectiveness of the antibiotics used is questionable. The extenders for cryopreservation added to the semen can affect product safety. The way materials and storage containers have to be disinfected must be clear. In modern industry, tracking and tracing is an important issue. Worldwide differences in ways of identification of straws do not benefit a proper identification and registration throughout the process. Regulation could help improve the transparency of production and trade. Before anything concerning biohazard is implemented in regulation, each rule should be thoroughly based on scientific research where possible and furthermore it must be possible to enforce the regulation. The effort it takes to enforce the regulation should be in balance with the benefit it provides. An approach to alter regulation quickly is advisable. To produce a safe product that is accepted for international trade is of vital interest for the survival of artificial insemination (AI) in cattle.
Collapse
Affiliation(s)
- L de Ruigh
- HG BV, Production Department, Arnhem, The Netherlands.
| | | | | | | | | |
Collapse
|
14
|
Opinion of the Scientific Panel on Animal Health and Welfare (AHAW) on a request from the Commission related to the risk of transmission of Mycobacterium avium subsp. paratuberculosis via bovine semen. EFSA J 2004. [DOI: 10.2903/j.efsa.2004.110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|