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פותח על ידי קלירמאש פתרונות בע"מ -
Subclinical mastitis in goats is associated with upregulation of nitric oxide-derived oxidative stress that causes reduction of milk antioxidative properties and impairment of its quality
Year:
2014
Source of publication :
Journal of Dairy Science
Authors :
מרין, עוזי
;
.
סילניקוב, ניסים
;
.
שפירו, פירה
;
.
Volume :
97
Co-Authors:
Silanikove, N., Biology of Lactation Laboratory, Institute of Animal Science, A.R.O., the Volcani Center, PO Box 6, Bet Dagan 50250, Israel. Electronic address: nsilanik@agri.huji.ac.il
Merin, U., Department of Food Quality and Safety, Postharvest and Food Sciences, A.R.O., the Volcani Center, PO Box 6, Bet Dagan 50250, Israel
Shapiro, F., Biology of Lactation Laboratory, Institute of Animal Science, A.R.O., the Volcani Center, PO Box 6, Bet Dagan 50250, Israel
Leitner, G., National Mastitis Center, Kimron Veterinary Institute, PO Box 12, Bet Dagan 50250, Israel
Silanikove, N., Biology of Lactation Laboratory, Institute of Animal Science, A.R.O., The Volcani Center, PO Box 6, Bet Dagan 50250, Israel
Facilitators :
From page:
3449
To page:
3455
(
Total pages:
7
)
Abstract:
The aim of this study was to verify the existence of a nitric oxide (NO) cycle in goat milk and to study how changes in it affect milk composition during subclinical mastitis. Fifteen lactating dairy goats in which one udder-half was free from bacterial infection and the contra-lateral one was naturally infected with various species of coagulase-negative staphylococci were used. In comparison to uninfected glands, subclinical mastitis was associated with a decrease in milk yield, lactose concentration, and curd yield and an increase in nitrite and nitrate concentrations and with measurements reflecting increased formation of NO-derived free-radical nitrogen dioxide. The occurrence of NO cycling in goat milk was largely confirmed. The increase in the NO-derived stress during subclinical infection was not associated with significant increase in oxidatively modified substances, 3-nitrotyrosine, and carbonyls on proteins, but with increased levels of peroxides on fat. However, the relatively modest nitrosative stress in subclinically infected glands was associated with significant reduction in total antioxidant capacity and vitamin C levels in milk. We concluded that subclinical mastitis in goats caused by coagulase-negative staphylococci imposes negative changes in milk yield, milk quality for cheese production, and negatively affects the nutritional value of milk as food. Thus, subclinical mastitis in goats should be considered as a serious economic burden both by farmers and by the dairy industry. Copyright © 2014 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.
Note:
Related Files :
Animals
antioxidants
Female
food microbiology
goats
lactation
metabolism
milk
עוד תגיות
תוכן קשור
More details
DOI :
10.3168/jds.2013-7334
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
32761
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:12
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Scientific Publication
Subclinical mastitis in goats is associated with upregulation of nitric oxide-derived oxidative stress that causes reduction of milk antioxidative properties and impairment of its quality
97
Silanikove, N., Biology of Lactation Laboratory, Institute of Animal Science, A.R.O., the Volcani Center, PO Box 6, Bet Dagan 50250, Israel. Electronic address: nsilanik@agri.huji.ac.il
Merin, U., Department of Food Quality and Safety, Postharvest and Food Sciences, A.R.O., the Volcani Center, PO Box 6, Bet Dagan 50250, Israel
Shapiro, F., Biology of Lactation Laboratory, Institute of Animal Science, A.R.O., the Volcani Center, PO Box 6, Bet Dagan 50250, Israel
Leitner, G., National Mastitis Center, Kimron Veterinary Institute, PO Box 12, Bet Dagan 50250, Israel
Silanikove, N., Biology of Lactation Laboratory, Institute of Animal Science, A.R.O., The Volcani Center, PO Box 6, Bet Dagan 50250, Israel
Subclinical mastitis in goats is associated with upregulation of nitric oxide-derived oxidative stress that causes reduction of milk antioxidative properties and impairment of its quality
The aim of this study was to verify the existence of a nitric oxide (NO) cycle in goat milk and to study how changes in it affect milk composition during subclinical mastitis. Fifteen lactating dairy goats in which one udder-half was free from bacterial infection and the contra-lateral one was naturally infected with various species of coagulase-negative staphylococci were used. In comparison to uninfected glands, subclinical mastitis was associated with a decrease in milk yield, lactose concentration, and curd yield and an increase in nitrite and nitrate concentrations and with measurements reflecting increased formation of NO-derived free-radical nitrogen dioxide. The occurrence of NO cycling in goat milk was largely confirmed. The increase in the NO-derived stress during subclinical infection was not associated with significant increase in oxidatively modified substances, 3-nitrotyrosine, and carbonyls on proteins, but with increased levels of peroxides on fat. However, the relatively modest nitrosative stress in subclinically infected glands was associated with significant reduction in total antioxidant capacity and vitamin C levels in milk. We concluded that subclinical mastitis in goats caused by coagulase-negative staphylococci imposes negative changes in milk yield, milk quality for cheese production, and negatively affects the nutritional value of milk as food. Thus, subclinical mastitis in goats should be considered as a serious economic burden both by farmers and by the dairy industry. Copyright © 2014 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.
Scientific Publication
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