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פותח על ידי קלירמאש פתרונות בע"מ -
Potential contribution of Quercus durata and Adenostoma fasciculatum supplemented with Medicago sativa on intake and digestibility in sheep and goats
Year:
2011
Source of publication :
Agroforestry Systems
Authors :
ברוש, אריה
;
.
Volume :
83
Co-Authors:
Narvaez, N., Department of Animal Science, University of California, Davis, CA 95616, United States, Agriculture and Agri-Food Canada, Lethbridge Research Center, PO Box 3000, Lethbridge, AB T1J4B1, Canada
Brosh, A., Newe Ya'ar Research Center, Institute of Animal Science, ARO, Ramat Yishay, Israel
Mellado, M., Department of Nutrition and Foods, Universidad Autónoma Agraria Antonio Narro, 25315 Saltillo, COAH, Mexico
Pittroff, W., Department of Animal Science, University of California, Davis, CA 95616, United States
Facilitators :
From page:
279
To page:
286
(
Total pages:
8
)
Abstract:
A digestion trial was conducted to estimate the potential contribution of the chaparral browse Quercus durata (leather oak) and Adenostoma fasciculatum (chamise) on intake and nutrient digestion in goats and sheep. Four wether Kiko goats (avg. wt. 22.9 kg) and four wether Targhee sheep (avg. wt. 39.6 kg) were housed in metabolism cages. Alfalfa pellets were used as a dietary supplement. Digestibility of the shrubs was measured by difference and metabolizable energy (ME) and ME intake (MEI) were calculated from digestibility and plants intake values. Oak and chamise had low crude protein (CP) content (6.5 and 4.3% DM) and high content of extractable condensed tannins (17.8 and 9.8% DM). In vitro organic matter digestibility (OMD) and ME for oak and chamise were 35.6 and 33.1% and 5.0 and 4.7 MJ/kg DM, respectively. In vivo OMD (calculated by difference with alfalfa) and MEI, for browse were greater (P < 0.01) for goats fed chamise compared to sheep. In oak, OMD was similar for both animal species but MEI was greater (P < 0.01) for goats. Greater (P < 0.05) DM and CP intakes (per kg BW0.75) were observed for goats fed either oak or chamise compared with sheep. When an energy source was given as supplement, the potential contribution of chamise and oak to total ME requirements for maintenance was about 58.3 and 60.4% in goats and about 17.1 and 32.9% in sheep, respectively. In consequence, metabolizable energy supplied by these shrubs may not be adequate for maintenance when, during grazing, they are consumed in high proportions with other chaparral plants that may have lower nutritional value than the alfalfa supplemented in this study. Under an appropriate supplementation program, goats could be more effective than sheep to control fuel load in California chaparral, as they consume more chamise and leather oak and obtain more nutrients from them. © 2011 Springer Science+Business Media B.V.
Note:
Related Files :
Adenostoma fasciculatum
Digestibility
forage
Goat
Grazing
Medicago sativa
metabolism
sheep
shrub
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s10457-011-9387-2
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
19422
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:28
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Scientific Publication
Potential contribution of Quercus durata and Adenostoma fasciculatum supplemented with Medicago sativa on intake and digestibility in sheep and goats
83
Narvaez, N., Department of Animal Science, University of California, Davis, CA 95616, United States, Agriculture and Agri-Food Canada, Lethbridge Research Center, PO Box 3000, Lethbridge, AB T1J4B1, Canada
Brosh, A., Newe Ya'ar Research Center, Institute of Animal Science, ARO, Ramat Yishay, Israel
Mellado, M., Department of Nutrition and Foods, Universidad Autónoma Agraria Antonio Narro, 25315 Saltillo, COAH, Mexico
Pittroff, W., Department of Animal Science, University of California, Davis, CA 95616, United States
Potential contribution of Quercus durata and Adenostoma fasciculatum supplemented with Medicago sativa on intake and digestibility in sheep and goats
A digestion trial was conducted to estimate the potential contribution of the chaparral browse Quercus durata (leather oak) and Adenostoma fasciculatum (chamise) on intake and nutrient digestion in goats and sheep. Four wether Kiko goats (avg. wt. 22.9 kg) and four wether Targhee sheep (avg. wt. 39.6 kg) were housed in metabolism cages. Alfalfa pellets were used as a dietary supplement. Digestibility of the shrubs was measured by difference and metabolizable energy (ME) and ME intake (MEI) were calculated from digestibility and plants intake values. Oak and chamise had low crude protein (CP) content (6.5 and 4.3% DM) and high content of extractable condensed tannins (17.8 and 9.8% DM). In vitro organic matter digestibility (OMD) and ME for oak and chamise were 35.6 and 33.1% and 5.0 and 4.7 MJ/kg DM, respectively. In vivo OMD (calculated by difference with alfalfa) and MEI, for browse were greater (P < 0.01) for goats fed chamise compared to sheep. In oak, OMD was similar for both animal species but MEI was greater (P < 0.01) for goats. Greater (P < 0.05) DM and CP intakes (per kg BW0.75) were observed for goats fed either oak or chamise compared with sheep. When an energy source was given as supplement, the potential contribution of chamise and oak to total ME requirements for maintenance was about 58.3 and 60.4% in goats and about 17.1 and 32.9% in sheep, respectively. In consequence, metabolizable energy supplied by these shrubs may not be adequate for maintenance when, during grazing, they are consumed in high proportions with other chaparral plants that may have lower nutritional value than the alfalfa supplemented in this study. Under an appropriate supplementation program, goats could be more effective than sheep to control fuel load in California chaparral, as they consume more chamise and leather oak and obtain more nutrients from them. © 2011 Springer Science+Business Media B.V.
Scientific Publication
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