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פותח על ידי קלירמאש פתרונות בע"מ -
Effects of somatotropin and dietary calcium soaps of fatty acids in early lactation on milk production, dry matter intake, and energy balance of high-yielding dairy cows
Year:
2000
Source of publication :
Journal of Dairy Science
Authors :
מועלם, עוזי
;
.
פולמן, ישעיהו
;
.
Volume :
83
Co-Authors:
Moallem, U., Institute of Animal Science, Agriculture Research Organization, Volcani Center, Bet Dagan 50250, Israel, Faculty of Agriculture, Hebrew University, Rehovot 76100, Israel
Folman, Y., Institute of Animal Science, Agriculture Research Organization, Volcani Center, Bet Dagan 50250, Israel
Sklan, D., Faculty of Agriculture, Hebrew University, Rehovot 76100, Israel
Facilitators :
From page:
2085
To page:
2094
(
Total pages:
10
)
Abstract:
We allocated 39 high-yielding individually fed cows to three treatments: control, calcium soaps of fatty acids (CSFA) fed at 2.2% dry matter, and 500 mg of Zn-sometribove (bST) injected every 14 d from 10 to 150 d in milk (DIM). Production of fat corrected milk was increased by 3.0 kg/d in the CSFA group and by 5.4 kg/ d in the bST group. Energy balance was negative during the first 28 to 34 DIM in control and CSFA cows and during 59 DIM in bST-treated cows; minimum body weight, minimum body condition score, and DMI peak were reached 25-28 d later in the bST group. Dry matter intake (DMI) was significantly increased by bST, and during the first 3 wk of treatment the increase in DMI of the bST cows was 46% more than that of the controls. DMI was significantly correlated throughout the experimental periods with calculated energy expenditure in the control and CSFA groups, but only during 54 DIM in the bST group. Furthermore, commencement of the DMI decrease was correlated with the beginning of the decrease in milk production. Gross feed efficiency was significantly higher in the bST group than in the other groups. We concluded that treating high-yielding cows with bST early in lactation increased milk production at the expense of an extensive period of negative energy balance and body weight and body condition decreases despite an increase in DMI after bST treatment.
Note:
Related Files :
Animal
Animals
Bovine somatotropin
cattle
chemistry
drug effect
fatty acids
Female
lactation
milk
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
32545
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:10
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Scientific Publication
Effects of somatotropin and dietary calcium soaps of fatty acids in early lactation on milk production, dry matter intake, and energy balance of high-yielding dairy cows
83
Moallem, U., Institute of Animal Science, Agriculture Research Organization, Volcani Center, Bet Dagan 50250, Israel, Faculty of Agriculture, Hebrew University, Rehovot 76100, Israel
Folman, Y., Institute of Animal Science, Agriculture Research Organization, Volcani Center, Bet Dagan 50250, Israel
Sklan, D., Faculty of Agriculture, Hebrew University, Rehovot 76100, Israel
Effects of somatotropin and dietary calcium soaps of fatty acids in early lactation on milk production, dry matter intake, and energy balance of high-yielding dairy cows
We allocated 39 high-yielding individually fed cows to three treatments: control, calcium soaps of fatty acids (CSFA) fed at 2.2% dry matter, and 500 mg of Zn-sometribove (bST) injected every 14 d from 10 to 150 d in milk (DIM). Production of fat corrected milk was increased by 3.0 kg/d in the CSFA group and by 5.4 kg/ d in the bST group. Energy balance was negative during the first 28 to 34 DIM in control and CSFA cows and during 59 DIM in bST-treated cows; minimum body weight, minimum body condition score, and DMI peak were reached 25-28 d later in the bST group. Dry matter intake (DMI) was significantly increased by bST, and during the first 3 wk of treatment the increase in DMI of the bST cows was 46% more than that of the controls. DMI was significantly correlated throughout the experimental periods with calculated energy expenditure in the control and CSFA groups, but only during 54 DIM in the bST group. Furthermore, commencement of the DMI decrease was correlated with the beginning of the decrease in milk production. Gross feed efficiency was significantly higher in the bST group than in the other groups. We concluded that treating high-yielding cows with bST early in lactation increased milk production at the expense of an extensive period of negative energy balance and body weight and body condition decreases despite an increase in DMI after bST treatment.
Scientific Publication
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