Bovine subclinical mastitis associated with Prototheca spp.
Аутори
Maletić, MilanĐukić, Božidar
Nedić, Svetlana
Stanišić, Ljubodrag
Stanimirović, Zoran
Stevanović, Jevrosima
Vakanjac, Slobodanka
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Mastitis is the most common disease in dairy cattle and presents the most costly disorder
to the dairy industry. Subclinical mastitis is inflammation of the mammary gland that does
not create visible changes in the milk or the udder, thus, subclinically infected cows will
produce less milk, and the quality of the milk will be reduced. In addition, infected cows
can be a source of infection to other animals in the herd. Among other unspecified causative
agents of mastitis, algae Prototheca spp. is not included in routine diagnosis in laboratories.
However, Prototheca spp infections usually result in a chronic subclinical or mild clinical,
inflammatory process in the udder, and were followed by a dramatic loss in milk production
and a permanent increase in somatic cell count. This type of infection is rare, but the
incidence of reported cases is increasing worldwide. In our investigation, 605 milk samples
were obtained fromdairy cows in a total of 5 herds with a history of incr...easing somatic cell
counts, subclinical and mild clinical signs of udder infection, and/or unsuccessful response
to the usual therapy. Microbiological isolation of algae on Blood agar and Sabouraud agar
at 25°C and 37°C, respectively, showed that 39 (6.45%) samples were positive on
Prototheca spp. which was confirmed microscopically. The SCC of Prototheca spp.
positive milk samples were from 5×105
/mL up to 13 ×106
/mL. Considering the wide
distribution of these algae as saprophytes in the environment, further investigation should
include detail microbiological and molecular techniques in order to reveal genotypes
involved prevent infections and decrease economic losses.
Кључне речи:
Prototheca spp / mastitis / SCC / dairy cattleИзвор:
International Symposium on Animal Science (ISAS), Belgrade, 24 - 25 November, 2016, 2016, 327-333Издавач:
- Belgrade : Faculty of Agriculture
Напомена:
- Proceedings
Колекције
Институција/група
Fakultet veterinarske medicineTY - CONF AU - Maletić, Milan AU - Đukić, Božidar AU - Nedić, Svetlana AU - Stanišić, Ljubodrag AU - Stanimirović, Zoran AU - Stevanović, Jevrosima AU - Vakanjac, Slobodanka PY - 2016 UR - https://vet-erinar.vet.bg.ac.rs/handle/123456789/3825 AB - Mastitis is the most common disease in dairy cattle and presents the most costly disorder to the dairy industry. Subclinical mastitis is inflammation of the mammary gland that does not create visible changes in the milk or the udder, thus, subclinically infected cows will produce less milk, and the quality of the milk will be reduced. In addition, infected cows can be a source of infection to other animals in the herd. Among other unspecified causative agents of mastitis, algae Prototheca spp. is not included in routine diagnosis in laboratories. However, Prototheca spp infections usually result in a chronic subclinical or mild clinical, inflammatory process in the udder, and were followed by a dramatic loss in milk production and a permanent increase in somatic cell count. This type of infection is rare, but the incidence of reported cases is increasing worldwide. In our investigation, 605 milk samples were obtained fromdairy cows in a total of 5 herds with a history of increasing somatic cell counts, subclinical and mild clinical signs of udder infection, and/or unsuccessful response to the usual therapy. Microbiological isolation of algae on Blood agar and Sabouraud agar at 25°C and 37°C, respectively, showed that 39 (6.45%) samples were positive on Prototheca spp. which was confirmed microscopically. The SCC of Prototheca spp. positive milk samples were from 5×105 /mL up to 13 ×106 /mL. Considering the wide distribution of these algae as saprophytes in the environment, further investigation should include detail microbiological and molecular techniques in order to reveal genotypes involved prevent infections and decrease economic losses. PB - Belgrade : Faculty of Agriculture C3 - International Symposium on Animal Science (ISAS), Belgrade, 24 - 25 November, 2016 T1 - Bovine subclinical mastitis associated with Prototheca spp. SP - 327 EP - 333 UR - https://hdl.handle.net/21.15107/rcub_veterinar_3825 ER -
@conference{ author = "Maletić, Milan and Đukić, Božidar and Nedić, Svetlana and Stanišić, Ljubodrag and Stanimirović, Zoran and Stevanović, Jevrosima and Vakanjac, Slobodanka", year = "2016", abstract = "Mastitis is the most common disease in dairy cattle and presents the most costly disorder to the dairy industry. Subclinical mastitis is inflammation of the mammary gland that does not create visible changes in the milk or the udder, thus, subclinically infected cows will produce less milk, and the quality of the milk will be reduced. In addition, infected cows can be a source of infection to other animals in the herd. Among other unspecified causative agents of mastitis, algae Prototheca spp. is not included in routine diagnosis in laboratories. However, Prototheca spp infections usually result in a chronic subclinical or mild clinical, inflammatory process in the udder, and were followed by a dramatic loss in milk production and a permanent increase in somatic cell count. This type of infection is rare, but the incidence of reported cases is increasing worldwide. In our investigation, 605 milk samples were obtained fromdairy cows in a total of 5 herds with a history of increasing somatic cell counts, subclinical and mild clinical signs of udder infection, and/or unsuccessful response to the usual therapy. Microbiological isolation of algae on Blood agar and Sabouraud agar at 25°C and 37°C, respectively, showed that 39 (6.45%) samples were positive on Prototheca spp. which was confirmed microscopically. The SCC of Prototheca spp. positive milk samples were from 5×105 /mL up to 13 ×106 /mL. Considering the wide distribution of these algae as saprophytes in the environment, further investigation should include detail microbiological and molecular techniques in order to reveal genotypes involved prevent infections and decrease economic losses.", publisher = "Belgrade : Faculty of Agriculture", journal = "International Symposium on Animal Science (ISAS), Belgrade, 24 - 25 November, 2016", title = "Bovine subclinical mastitis associated with Prototheca spp.", pages = "327-333", url = "https://hdl.handle.net/21.15107/rcub_veterinar_3825" }
Maletić, M., Đukić, B., Nedić, S., Stanišić, L., Stanimirović, Z., Stevanović, J.,& Vakanjac, S.. (2016). Bovine subclinical mastitis associated with Prototheca spp.. in International Symposium on Animal Science (ISAS), Belgrade, 24 - 25 November, 2016 Belgrade : Faculty of Agriculture., 327-333. https://hdl.handle.net/21.15107/rcub_veterinar_3825
Maletić M, Đukić B, Nedić S, Stanišić L, Stanimirović Z, Stevanović J, Vakanjac S. Bovine subclinical mastitis associated with Prototheca spp.. in International Symposium on Animal Science (ISAS), Belgrade, 24 - 25 November, 2016. 2016;:327-333. https://hdl.handle.net/21.15107/rcub_veterinar_3825 .
Maletić, Milan, Đukić, Božidar, Nedić, Svetlana, Stanišić, Ljubodrag, Stanimirović, Zoran, Stevanović, Jevrosima, Vakanjac, Slobodanka, "Bovine subclinical mastitis associated with Prototheca spp." in International Symposium on Animal Science (ISAS), Belgrade, 24 - 25 November, 2016 (2016):327-333, https://hdl.handle.net/21.15107/rcub_veterinar_3825 .