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The Effect of Enhanced Milk Yield of Dairy Cows by Frequent Milking or Suckling on Intake and Digestibility of the Diet
Year:
1998
Source of publication :
Journal of Dairy Science
Authors :
Aharoni, Yoav
;
.
Bar-Pelled, Ud
;
.
Brukental, Israel
;
.
Folman, Yeshayahu
;
.
Gacitua, Haim
;
.
Maltz, Ephraim
;
.
Volume :
81
Co-Authors:
Bar-Peled, U., Hebrew University of Jerusalem, Faculty of Agriculture, PO Box 12, Rehovot, 76100, Israel, Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Aharoni, Y., Agricultural Research Organization, Newe Ya'ar, North Research Center, PO Box 1021, Ramat Yishay, 30095, Israel
Robinzon, B., Hebrew University of Jerusalem, Faculty of Agriculture, PO Box 12, Rehovot, 76100, Israel
Bruckental, I., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Lehrer, R., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Maltz, E., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Knight, C., Hannah Research Institute, Ayr, KA6 5HL, United Kingdom
Kali, J., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Folman, Y., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Voet, H., Hebrew University of Jerusalem, Faculty of Agriculture, PO Box 12, Rehovot, 76100, Israel
Gacitua, H., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Tagari, H., Hebrew University of Jerusalem, Faculty of Agriculture, PO Box 12, Rehovot, 76100, Israel
Facilitators :
From page:
1420
To page:
1427
(
Total pages:
8
)
Abstract:
Groups of 9 or 10 cows were assigned to one of three treatments 1) machine-milking three times daily, 2) machine-milking six times daily, and 3) suckling three times daily in addition to machine-milking three times daily. Treatments were conducted during the first 6 wk postpartum. During wk 5, digestibility of the diet was estimated by the indigestible neutral detergent fiber method. During wk 6, milk yield and dry matter intake (DMI) were recorded daily, and plasma concentrations of glucose, nonesterified fatty acids, urea, protein, growth hormone, insulin, insulin-like growth factor I, oxytocin, and prolactin were determined. Milk yields were 38.5, 46.8, and 52.7 kg/d, and DMI were 18.1, 21.2, and 17.2, for cows on treatments 1, 2, and 3, respectively. Plasma glucose concentrations decreased, and plasma nonesterified fatty acid concentrations increased, for cows on treatments 2 and 3 compared with cows on treatment 1. Digestibility of dry matter was 57.5, 60.5, and 60.6%; of organic matter was 62.6, 64.6, and 66.8%; and of crude protein was 59.3, 62.7, and 64.6% for cows on treatments 1, 2, and 3, respectively. Concentrations of all assayed hormones, except insulin, increased moderately for cows on treatment 2 compared with cows on treatment 1 and increased dramatically for cows on treatment 3. Insulin concentrations followed the opposite trend. The DMI were positively related to milk yields and negatively related to oxytocin concentrations. Digestibility was negatively related to plasma glucose concentrations in a nonlinear pattern. The possible involvement of hormones in improvement of digestibility is discussed.
Note:
Related Files :
Animal
Animals
Blood
cattle
dietary fiber
Digestibility
Female
lactation
metabolism
milk yield
oxytocin
Show More
Related Content
More details
DOI :
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
23229
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:57
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Scientific Publication
The Effect of Enhanced Milk Yield of Dairy Cows by Frequent Milking or Suckling on Intake and Digestibility of the Diet
81
Bar-Peled, U., Hebrew University of Jerusalem, Faculty of Agriculture, PO Box 12, Rehovot, 76100, Israel, Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Aharoni, Y., Agricultural Research Organization, Newe Ya'ar, North Research Center, PO Box 1021, Ramat Yishay, 30095, Israel
Robinzon, B., Hebrew University of Jerusalem, Faculty of Agriculture, PO Box 12, Rehovot, 76100, Israel
Bruckental, I., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Lehrer, R., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Maltz, E., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Knight, C., Hannah Research Institute, Ayr, KA6 5HL, United Kingdom
Kali, J., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Folman, Y., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Voet, H., Hebrew University of Jerusalem, Faculty of Agriculture, PO Box 12, Rehovot, 76100, Israel
Gacitua, H., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Tagari, H., Hebrew University of Jerusalem, Faculty of Agriculture, PO Box 12, Rehovot, 76100, Israel
The Effect of Enhanced Milk Yield of Dairy Cows by Frequent Milking or Suckling on Intake and Digestibility of the Diet
Groups of 9 or 10 cows were assigned to one of three treatments 1) machine-milking three times daily, 2) machine-milking six times daily, and 3) suckling three times daily in addition to machine-milking three times daily. Treatments were conducted during the first 6 wk postpartum. During wk 5, digestibility of the diet was estimated by the indigestible neutral detergent fiber method. During wk 6, milk yield and dry matter intake (DMI) were recorded daily, and plasma concentrations of glucose, nonesterified fatty acids, urea, protein, growth hormone, insulin, insulin-like growth factor I, oxytocin, and prolactin were determined. Milk yields were 38.5, 46.8, and 52.7 kg/d, and DMI were 18.1, 21.2, and 17.2, for cows on treatments 1, 2, and 3, respectively. Plasma glucose concentrations decreased, and plasma nonesterified fatty acid concentrations increased, for cows on treatments 2 and 3 compared with cows on treatment 1. Digestibility of dry matter was 57.5, 60.5, and 60.6%; of organic matter was 62.6, 64.6, and 66.8%; and of crude protein was 59.3, 62.7, and 64.6% for cows on treatments 1, 2, and 3, respectively. Concentrations of all assayed hormones, except insulin, increased moderately for cows on treatment 2 compared with cows on treatment 1 and increased dramatically for cows on treatment 3. Insulin concentrations followed the opposite trend. The DMI were positively related to milk yields and negatively related to oxytocin concentrations. Digestibility was negatively related to plasma glucose concentrations in a nonlinear pattern. The possible involvement of hormones in improvement of digestibility is discussed.
Scientific Publication
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