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פותח על ידי קלירמאש פתרונות בע"מ -
Changes in milk composition as affected by subclinical mastitis in goats
Year:
2004
Source of publication :
Journal of Dairy Science
Authors :
מרין, עוזי
;
.
סילניקוב, ניסים
;
.
Volume :
87
Co-Authors:
Leitner, G., National Mastitis Reference Center, Kimron Veterinary Institute, Bet Dagan 50250, Israel
Merin, U., Department of Food Science, Inst. Technol. Storage Agric. Prod., Israel
Silanikove, N., Institute of Animal Science, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Facilitators :
From page:
1719
To page:
1726
(
Total pages:
8
)
Abstract:
The mechanism of the effects of subclinical mastitis (SM) at the glandular level in dairy goats on milk yield and its composition as expressed in curd yield (Yc) was studied. Twenty-five Israeli goats of various crossbreeds were chosen; one udder half was naturally infected with identified coagulase-negative staphylococci, and the contralateral gland was free of bacteria. The milk yield of the infected halves was significantly lower than that of the uninfected ones. Somatic cell count and N-acetyl-β-D-glucosaminidase activity were significantly higher in the infected halves. The lactose concentration in the infected glands was significantly lower than that in the uninfected ones, casein concentrations did not differ, and the whey protein and albumin concentrations were significantly higher in the infected glands. Plasmin activity was significantly higher in the infected glands, whereas plasminogen activity was undetectable. Concentrations of Ca 2+ did not differ, whereas Ca 2+ activity was significantly lower in the infected glands. The proteose peptone concentration was 1.5 times as great in the infected glands as in the uninfected ones. The Yc was significantly lower in the infected halves, and clotting time was significantly longer. The mechanisms of the effects of SM on milk yield and Yc in goats and sheep are discussed and compared.
Note:
Related Files :
acetylglucosaminidase
Animal
Animals
Female
goats
lactation
metabolism
milk
whey protein
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26024
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:19
You may also be interested in
Scientific Publication
Changes in milk composition as affected by subclinical mastitis in goats
87
Leitner, G., National Mastitis Reference Center, Kimron Veterinary Institute, Bet Dagan 50250, Israel
Merin, U., Department of Food Science, Inst. Technol. Storage Agric. Prod., Israel
Silanikove, N., Institute of Animal Science, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Changes in milk composition as affected by subclinical mastitis in goats
The mechanism of the effects of subclinical mastitis (SM) at the glandular level in dairy goats on milk yield and its composition as expressed in curd yield (Yc) was studied. Twenty-five Israeli goats of various crossbreeds were chosen; one udder half was naturally infected with identified coagulase-negative staphylococci, and the contralateral gland was free of bacteria. The milk yield of the infected halves was significantly lower than that of the uninfected ones. Somatic cell count and N-acetyl-β-D-glucosaminidase activity were significantly higher in the infected halves. The lactose concentration in the infected glands was significantly lower than that in the uninfected ones, casein concentrations did not differ, and the whey protein and albumin concentrations were significantly higher in the infected glands. Plasmin activity was significantly higher in the infected glands, whereas plasminogen activity was undetectable. Concentrations of Ca 2+ did not differ, whereas Ca 2+ activity was significantly lower in the infected glands. The proteose peptone concentration was 1.5 times as great in the infected glands as in the uninfected ones. The Yc was significantly lower in the infected halves, and clotting time was significantly longer. The mechanisms of the effects of SM on milk yield and Yc in goats and sheep are discussed and compared.
Scientific Publication
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