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פותח על ידי קלירמאש פתרונות בע"מ -
The effect of varying ratios of roughage to concentrates on composition and yield of cow's milk
Year:
1971
Source of publication :
Journal of Dairy Research
Authors :
וולקני, רענן
;
.
Volume :
38
Co-Authors:
Gordin, S., Volcani Institute of Agricultural Research, Bet Dagan, and Faculty of Agriculture, Hebrew University, Rehovot, Israel
Volcani, R., Volcani Institute of Agricultural Research, Bet Dagan, and Faculty of Agriculture, Hebrew University, Rehovot, Israel
Birk, Y., Volcani Institute of Agricultural Research, Bet Dagan, and Faculty of Agriculture, Hebrew University, Rehovot, Israel
Facilitators :
From page:
295
To page:
302
(
Total pages:
8
)
Abstract:
Two levels of roughage, 3 FU (feed units) and 5 FU daily, were fed to Israeli-Friesian cows and heifers receiving either a normal (Normal) or a high-energy (High) diet. Milk yield and composition were examined for 12 weeks following parturition. The animals receiving 5 FU of roughage daily showed a higher milk yield during the first 8 weeks. With the Normal diet the amount of roughage had no effect on milk composition. With the High diet, milk yield was higher than with the Normal, and a depression in fat percentage was observed in the milk of cows and heifers receiving 3 FU daily. No corresponding fall in milk protein percentage was observed - the cows of this group (High-3 FU roughage) showing, in fact, a rise in protein percentage. No differences in milk total solids were found. With these high-energy low-roughage diets no correlation was apparent between milk fat and protein percentages. © 1971, Proprietors of Journal of Dairy Research. All rights reserved.
Note:
Related Files :
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תוכן קשור
More details
DOI :
10.1017/S0022029900019415
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
18925
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:25
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Scientific Publication
The effect of varying ratios of roughage to concentrates on composition and yield of cow's milk
38
Gordin, S., Volcani Institute of Agricultural Research, Bet Dagan, and Faculty of Agriculture, Hebrew University, Rehovot, Israel
Volcani, R., Volcani Institute of Agricultural Research, Bet Dagan, and Faculty of Agriculture, Hebrew University, Rehovot, Israel
Birk, Y., Volcani Institute of Agricultural Research, Bet Dagan, and Faculty of Agriculture, Hebrew University, Rehovot, Israel
The effect of varying ratios of roughage to concentrates on composition and yield of cow's milk
Two levels of roughage, 3 FU (feed units) and 5 FU daily, were fed to Israeli-Friesian cows and heifers receiving either a normal (Normal) or a high-energy (High) diet. Milk yield and composition were examined for 12 weeks following parturition. The animals receiving 5 FU of roughage daily showed a higher milk yield during the first 8 weeks. With the Normal diet the amount of roughage had no effect on milk composition. With the High diet, milk yield was higher than with the Normal, and a depression in fat percentage was observed in the milk of cows and heifers receiving 3 FU daily. No corresponding fall in milk protein percentage was observed - the cows of this group (High-3 FU roughage) showing, in fact, a rise in protein percentage. No differences in milk total solids were found. With these high-energy low-roughage diets no correlation was apparent between milk fat and protein percentages. © 1971, Proprietors of Journal of Dairy Research. All rights reserved.
Scientific Publication
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