Subclinical mastitis in sheep: Causes and their sensitivity to antibiotics
Supklinički mastitisi ovaca - uzročnici i njihova osetljivost na pojedine antimikrobne lekove
Abstract
The California mastitis test (CMT) was used to examine the milk of 6609 sheep, actually, from 13218 mammary complexes. A total of 986 milk samples were found to contain an increased number of somatic cells, and causes of mastitis were isolated from 910 (92.3%) of these samples. The most frequently isolated microorganisms were: E. coli isolated from 189 (20.76%) samples, Micrococcus sp from 186 (20.43%) samples, Bacillus sp. from 177 (19.45%), Staphylococcus aureus from 172 (18.9%) samples, and Proteus sp. from 121 (13.29%) samples of sheep milk. Coagulase-negative staphylococci (CNS) were isolated in a much smaller number, from 25 (2.74%) samples, Streptococcus sp. was isolated from 19 (2.08%) samples, Pseudomonas sp. from 14 (1.53%) samples, haemolytic E. coli was isolated from only 6 (0.65%) samples, and Streptococcus agalactiae from only one sample. Among the 25 isolates of coagulase-negative staphylococci, 16 (64%) isolates were identified as Staphylococcus chromogenes, and 9 (36%)... isolates as Staphylococcus simulans. The sensitivity of the isolated causes of mastitis to antibiotics was examined using the disc diffusion method. .
Kalifornija mastitis testom (CMT) ispitano je mleko uzorkovano od 6609 ovaca, odnosno iz 13 218 mamarnih kompleksa. Od 986 uzoraka mleka sa povećanim brojem somatskih ćelija u mleku iz 910 (92,3%) uzoraka izolovani su uzročnici mastitisa. Najčešći izolovani mikroorganizmi su: E. coli izolovana iz 189 (20,76%) uzoraka, Micrococcus sp. iz 186 (20,43%) uzoraka, Bacillus sp. iz 177 (19,45%), Staphylococcus aureus iz 172 (18,9%) uzorka i Proteus sp. iz 121 (13,29%) uzoraka mleka ovaca. Koagulaza negativne stafilokoke (CNS) izolovane su u mnogo manjem broju iz 25 (2,74%) uzoraka, Streptococcus sp. izolovan je iz 19 (2,08%) uzoraka, Pseudomonas sp. iz 14 (1,53%) uzoraka, hemolitične E. coli izolovane su iz svega 6 (0,65%) uzoraka, a Streptococcus agalactiae iz samo jednog uzorka. Od 25 izolata koagulaza negativnih stafilokoka kao Staphylococcus chromogenes identifikovano je 16 (64%) izolata, a kao Staphylococcus simulans 9 (36%) izolata. Osetljivost izolovanih uzročnika mastitisa na antimikro...bne lekove ispitana je disk difuzionom metodom.
Keywords:
mastitis / sheep / Staphylococcus aureus / coagulase-negative staphylococci / Antibiogram / mastitis / ovce / Staphylococcus aureus / koagulaza-negativne stafilokoke / antibiogram / antimikrobni lekoviSource:
Veterinarski Glasnik, 2010, 64, 3-4, 231-241Publisher:
- Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
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Fakultet veterinarske medicineTY - JOUR AU - Vakanjac, Slobodanka AU - Todorović, Igor PY - 2010 UR - https://vet-erinar.vet.bg.ac.rs/handle/123456789/664 AB - The California mastitis test (CMT) was used to examine the milk of 6609 sheep, actually, from 13218 mammary complexes. A total of 986 milk samples were found to contain an increased number of somatic cells, and causes of mastitis were isolated from 910 (92.3%) of these samples. The most frequently isolated microorganisms were: E. coli isolated from 189 (20.76%) samples, Micrococcus sp from 186 (20.43%) samples, Bacillus sp. from 177 (19.45%), Staphylococcus aureus from 172 (18.9%) samples, and Proteus sp. from 121 (13.29%) samples of sheep milk. Coagulase-negative staphylococci (CNS) were isolated in a much smaller number, from 25 (2.74%) samples, Streptococcus sp. was isolated from 19 (2.08%) samples, Pseudomonas sp. from 14 (1.53%) samples, haemolytic E. coli was isolated from only 6 (0.65%) samples, and Streptococcus agalactiae from only one sample. Among the 25 isolates of coagulase-negative staphylococci, 16 (64%) isolates were identified as Staphylococcus chromogenes, and 9 (36%) isolates as Staphylococcus simulans. The sensitivity of the isolated causes of mastitis to antibiotics was examined using the disc diffusion method. . AB - Kalifornija mastitis testom (CMT) ispitano je mleko uzorkovano od 6609 ovaca, odnosno iz 13 218 mamarnih kompleksa. Od 986 uzoraka mleka sa povećanim brojem somatskih ćelija u mleku iz 910 (92,3%) uzoraka izolovani su uzročnici mastitisa. Najčešći izolovani mikroorganizmi su: E. coli izolovana iz 189 (20,76%) uzoraka, Micrococcus sp. iz 186 (20,43%) uzoraka, Bacillus sp. iz 177 (19,45%), Staphylococcus aureus iz 172 (18,9%) uzorka i Proteus sp. iz 121 (13,29%) uzoraka mleka ovaca. Koagulaza negativne stafilokoke (CNS) izolovane su u mnogo manjem broju iz 25 (2,74%) uzoraka, Streptococcus sp. izolovan je iz 19 (2,08%) uzoraka, Pseudomonas sp. iz 14 (1,53%) uzoraka, hemolitične E. coli izolovane su iz svega 6 (0,65%) uzoraka, a Streptococcus agalactiae iz samo jednog uzorka. Od 25 izolata koagulaza negativnih stafilokoka kao Staphylococcus chromogenes identifikovano je 16 (64%) izolata, a kao Staphylococcus simulans 9 (36%) izolata. Osetljivost izolovanih uzročnika mastitisa na antimikrobne lekove ispitana je disk difuzionom metodom. PB - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd T2 - Veterinarski Glasnik T1 - Subclinical mastitis in sheep: Causes and their sensitivity to antibiotics T1 - Supklinički mastitisi ovaca - uzročnici i njihova osetljivost na pojedine antimikrobne lekove VL - 64 IS - 3-4 SP - 231 EP - 241 DO - 10.2298/VETGL1004231V ER -
@article{ author = "Vakanjac, Slobodanka and Todorović, Igor", year = "2010", abstract = "The California mastitis test (CMT) was used to examine the milk of 6609 sheep, actually, from 13218 mammary complexes. A total of 986 milk samples were found to contain an increased number of somatic cells, and causes of mastitis were isolated from 910 (92.3%) of these samples. The most frequently isolated microorganisms were: E. coli isolated from 189 (20.76%) samples, Micrococcus sp from 186 (20.43%) samples, Bacillus sp. from 177 (19.45%), Staphylococcus aureus from 172 (18.9%) samples, and Proteus sp. from 121 (13.29%) samples of sheep milk. Coagulase-negative staphylococci (CNS) were isolated in a much smaller number, from 25 (2.74%) samples, Streptococcus sp. was isolated from 19 (2.08%) samples, Pseudomonas sp. from 14 (1.53%) samples, haemolytic E. coli was isolated from only 6 (0.65%) samples, and Streptococcus agalactiae from only one sample. Among the 25 isolates of coagulase-negative staphylococci, 16 (64%) isolates were identified as Staphylococcus chromogenes, and 9 (36%) isolates as Staphylococcus simulans. The sensitivity of the isolated causes of mastitis to antibiotics was examined using the disc diffusion method. ., Kalifornija mastitis testom (CMT) ispitano je mleko uzorkovano od 6609 ovaca, odnosno iz 13 218 mamarnih kompleksa. Od 986 uzoraka mleka sa povećanim brojem somatskih ćelija u mleku iz 910 (92,3%) uzoraka izolovani su uzročnici mastitisa. Najčešći izolovani mikroorganizmi su: E. coli izolovana iz 189 (20,76%) uzoraka, Micrococcus sp. iz 186 (20,43%) uzoraka, Bacillus sp. iz 177 (19,45%), Staphylococcus aureus iz 172 (18,9%) uzorka i Proteus sp. iz 121 (13,29%) uzoraka mleka ovaca. Koagulaza negativne stafilokoke (CNS) izolovane su u mnogo manjem broju iz 25 (2,74%) uzoraka, Streptococcus sp. izolovan je iz 19 (2,08%) uzoraka, Pseudomonas sp. iz 14 (1,53%) uzoraka, hemolitične E. coli izolovane su iz svega 6 (0,65%) uzoraka, a Streptococcus agalactiae iz samo jednog uzorka. Od 25 izolata koagulaza negativnih stafilokoka kao Staphylococcus chromogenes identifikovano je 16 (64%) izolata, a kao Staphylococcus simulans 9 (36%) izolata. Osetljivost izolovanih uzročnika mastitisa na antimikrobne lekove ispitana je disk difuzionom metodom.", publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd", journal = "Veterinarski Glasnik", title = "Subclinical mastitis in sheep: Causes and their sensitivity to antibiotics, Supklinički mastitisi ovaca - uzročnici i njihova osetljivost na pojedine antimikrobne lekove", volume = "64", number = "3-4", pages = "231-241", doi = "10.2298/VETGL1004231V" }
Vakanjac, S.,& Todorović, I.. (2010). Subclinical mastitis in sheep: Causes and their sensitivity to antibiotics. in Veterinarski Glasnik Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 64(3-4), 231-241. https://doi.org/10.2298/VETGL1004231V
Vakanjac S, Todorović I. Subclinical mastitis in sheep: Causes and their sensitivity to antibiotics. in Veterinarski Glasnik. 2010;64(3-4):231-241. doi:10.2298/VETGL1004231V .
Vakanjac, Slobodanka, Todorović, Igor, "Subclinical mastitis in sheep: Causes and their sensitivity to antibiotics" in Veterinarski Glasnik, 64, no. 3-4 (2010):231-241, https://doi.org/10.2298/VETGL1004231V . .