Document Details
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Document Type |
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Article In Journal |
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Document Title |
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Nutritive Value Assessment of Some Saudi Arabian Foliages by Gas Production Technique in vitro تقدير القيمة الغذائية لبعض أوراق النباتات المزروعة بالمملكة العربية السعودية بطريقة إنتاج الغاز معمليا |
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Document Language |
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English |
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Abstract |
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Abstract. Chemical composition, microbial rumen fermentation,
energetic values and microbial mass of some Saudia Arabia foliages
were investigated in comparison with alfalfa as high quality roughage
using the Hohenheim gas test. A gas test technique was performed
using buffered rumen fluid collected from three rumen fistulated
sheep. Cumulative gas production was recorded at 3, 6, 9, 12, 24, 48,
72 and 96 h of incubation in vitro. The investigated browses were
Blue panic (Panicuma antidotale), Moringa oleifera, Jojoba
(Simmondsia chinensis), Canary grass (Phalaris spp.) and Millet
(Eleusine coracana) leaves. The browses were collected at the wet
season in Saudi Arabia. Alfalfa and moringa leaves had the highest
crude protein (CP) content, while the canary grass and blue panic had
the lowest CP content. The neutral detergent fiber (NDF), acid
detergent fiber (ADF) and acid detergent lignin (ADL) were higher in
blue panic, canary grass, millet and alfalfa, while the moringa leaves
showed the lowest content of the fiber constituents. The secondary
compounds analyses showed negligible contents of these feeds for
total phenol (TP), total tannins (TT) and condensed tannins (CT)
except jojoba leaves. Alfalfa, blue panic, moringa, canary grass and
millet had negligible CT content, while jojoba leaves had the highest
CT content (30.04 eq-g leucocyanidin kg
-1
DM). The potential gas
production was highest (p<0.05) for alfalfa, moringa, and millet
leaves, while the canary grass and jojoba leaves recorded the lowest
gas production. Although, jojoba leaves produced less gas volume, it
had the shortest lag time (L, 0.4139 h
-1
) and lowest rate of gas
production (µ h
-1
). The longest L value (2.379, h
-1
) was noted with
canary grass. There were significant (p<0.05) differences in terms of
predicted short chain fatty acids (SCFA), metabolizable energy (ME), net energy (NE), organic matter digestibility (OMD) and microbial
protein (MP). The moringa and jojoba leaves in comparison with
alfalfa showed the highest (p<0.05) SCFA, energy content, OMD and
MP. The ranking order of the investigated browse species on the basis
of their energy content, organic matter degradability and microbial
protein was moringa > jojoba > millet > blue panic > canary grass. In
conclusion, significant variations in in vitro fermentation and
degradation were observed among different browse species collected
from Saudi Arabia through the wet season. The results suggest that
moringa leaves are promising alternative feed resource and could be
incorporated in ruminants feed mixtures to replace conventional
roughage sources (alfalfa) without major problems. |
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ISSN |
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1319-1039 |
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Journal Name |
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Meteorology, Environment and Arid Land Agriculture Sciences Journal |
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Volume |
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21 |
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Issue Number |
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1 |
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Publishing Year |
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1431 AH
2010 AD |
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Article Type |
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Article |
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Added Date |
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Friday, July 13, 2012 |
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Researchers
| احمد عبدالله باخشوين | Bakhashwain, Ahmed A | Investigator | Doctorate | aabakhashwain@kau.edu.sa |
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