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Diet composition and energy balance of cows grazing on Mediterranean woodland
Year:
2006
Source of publication :
Livestock Science
Authors :
Aharoni, Yoav
;
.
Brosh, Arieh
;
.
Henkin, Zalmen
;
.
Orlov, Alla V.
;
.
Volume :
102
Co-Authors:
Brosh, A., Beef Cattle Section, A.R.O, Newe Yaar Research Centre, POB 1021, Ramat Yishay, 30095, Israel
Henkin, Z., Beef Cattle Section, A.R.O, Newe Yaar Research Centre, POB 1021, Ramat Yishay, 30095, Israel, Institute of Field Crops, A.R.O., POB 6, Bet Dagan, 50250, Israel
Orlov, A., Beef Cattle Section, A.R.O, Newe Yaar Research Centre, POB 1021, Ramat Yishay, 30095, Israel
Aharoni, Y., Beef Cattle Section, A.R.O, Newe Yaar Research Centre, POB 1021, Ramat Yishay, 30095, Israel
Facilitators :
From page:
11
To page:
22
(
Total pages:
12
)
Abstract:
The study was conducted to determine the role of browse in the nutritional status and performance of beef cattle grazing on Mediterranean woodland. Measurements of the botanical intake composition (using N-alkane control release capsules and profile) and of the energy expenditure (EE) and balance (using the heart rate method) were carried out on six pregnant cows in the late summer, and on the same cows when nursing in winter and after weaning in late spring. Broiler chicken manure (poultry litter, PL) was given freely during late summer and in winter. Throughout the three periods the metabolizable energy (ME) concentrations of the consumed diet were 6.23, 8.78, 7.65 MJ/kgDM, respectively and the intakes were 8.59, 9.60, 7.92 kgDM/day, respectively; the ME intake, the EE and the retained energy (all in units of kJ/(kgLW0.75*day) were 583, 524 and 58, respectively, in late summer; 960, 634 and 326, respectively, in winter; and 665, 475 and 190, respectively, in late spring. The proportions of woody plants in the consumed diet were 63%, 15% and 59% in the respective periods. The proportion of PL supplement in the diet was 37% in late summer and 35% in winter. We conclude that browse can provide 60% of the MEI, and thus the performance of cows grazed on woodland was comparable with that of cows grazed on herbaceous ranges in this region. © 2005 Elsevier B.V. All rights reserved.
Note:
Related Files :
beef cattle
Bos taurus
Botanical composition
energy balance
Energy expenditure
Grazing cows
heart rate
Mediterranean browse
Show More
Related Content
More details
DOI :
10.1016/j.livprodsci.2005.11.016
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
28990
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:43
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Scientific Publication
Diet composition and energy balance of cows grazing on Mediterranean woodland
102
Brosh, A., Beef Cattle Section, A.R.O, Newe Yaar Research Centre, POB 1021, Ramat Yishay, 30095, Israel
Henkin, Z., Beef Cattle Section, A.R.O, Newe Yaar Research Centre, POB 1021, Ramat Yishay, 30095, Israel, Institute of Field Crops, A.R.O., POB 6, Bet Dagan, 50250, Israel
Orlov, A., Beef Cattle Section, A.R.O, Newe Yaar Research Centre, POB 1021, Ramat Yishay, 30095, Israel
Aharoni, Y., Beef Cattle Section, A.R.O, Newe Yaar Research Centre, POB 1021, Ramat Yishay, 30095, Israel
Diet composition and energy balance of cows grazing on Mediterranean woodland
The study was conducted to determine the role of browse in the nutritional status and performance of beef cattle grazing on Mediterranean woodland. Measurements of the botanical intake composition (using N-alkane control release capsules and profile) and of the energy expenditure (EE) and balance (using the heart rate method) were carried out on six pregnant cows in the late summer, and on the same cows when nursing in winter and after weaning in late spring. Broiler chicken manure (poultry litter, PL) was given freely during late summer and in winter. Throughout the three periods the metabolizable energy (ME) concentrations of the consumed diet were 6.23, 8.78, 7.65 MJ/kgDM, respectively and the intakes were 8.59, 9.60, 7.92 kgDM/day, respectively; the ME intake, the EE and the retained energy (all in units of kJ/(kgLW0.75*day) were 583, 524 and 58, respectively, in late summer; 960, 634 and 326, respectively, in winter; and 665, 475 and 190, respectively, in late spring. The proportions of woody plants in the consumed diet were 63%, 15% and 59% in the respective periods. The proportion of PL supplement in the diet was 37% in late summer and 35% in winter. We conclude that browse can provide 60% of the MEI, and thus the performance of cows grazed on woodland was comparable with that of cows grazed on herbaceous ranges in this region. © 2005 Elsevier B.V. All rights reserved.
Scientific Publication
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