Digestion of Sago Based Diets in Sheep

Sago (Metroxylon sagu, Rott.) pith meal (SPM) can be used as an excellent energy feed for ruminant livestock because the pith contains high amount of starch and some indigenous fibre. However, there is a lack of information on the nutritive properties of SPM and effects of feeding SPM on the dige...

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Main Author: Muhamad, Yahya
Format: Thesis
Language:English
English
Published: 2000
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Online Access:http://psasir.upm.edu.my/id/eprint/10530/1/FP_2000_19_A.pdf
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spelling my-upm-ir.105302011-04-27T04:28:49Z Digestion of Sago Based Diets in Sheep 2000 Muhamad, Yahya Sago (Metroxylon sagu, Rott.) pith meal (SPM) can be used as an excellent energy feed for ruminant livestock because the pith contains high amount of starch and some indigenous fibre. However, there is a lack of information on the nutritive properties of SPM and effects of feeding SPM on the digestion parameters of ruminant animal. Therefore, the objectives of the present studies were: to determine the physical and chemical caharacteristics of SPM; and to study the effects of feeding SPM based diets on the growth performance of lambs and on digestibility of the diets , especially in relation to nutrient flows and microbial protein synthesis, in sheep. The experimental diets used were SPM plus soya bean meal (Diet A), SPM plus soya bean meal and urea (Diet B) and SPM plus fish meal and urea (Diet C). The crude protein content of SPM was less than 2% while the neutral detergent fibre (NDF), starch and gross energy (GE) contents on dry weight basis were 12.8%, 72.2% and 1 7.5 MJ/kg, respectively. Scanning electron microscopy revealed that SPM consisted mainly of starch granules, parenchyma cell walls and vascular bundle fibres which were degraded in situ at different rates by the rumen microbes. The digestibility of organic matter in dry matter (DOMD) was similar for all the diets which averaged 77-78%, but the metabolisable (ME) and net energy for fattening (NEJ values were: 10.4, 10.4, 11.0 MJ ME and 7.7, 7.7, 8.0 MJ NEr (P<0.05) per kg of feed dry weight for the three diets, respectively. The performance responses of 21 lambs fed with the three diets showed that their final weights and average daily gains (ADG) were: Diet A, 28.9 kg and 122 g; Diet B, 21.9 kg and 50 g: Diet C, 24.6 kg and 76 g (P<0.05). The efficiencies of microbial protein synthesis measured in terms of g Nlkg starch digested in the rumen for these respective diets were 81.3, 21.9 and 32.3 g (P<0.10). In conclusion, sago-pith meal contains an energy value equivalent to maize grains but having additional benefits from the indigenous fibres which are necessary for cellulolysis and the roughage effect. To improve the efficiency of energy utilization from sago diets, ruminal pH depression due to rapid breakdown of starch need to be sufficiently controlled such as through proper feed processing, ration formulation and feeding regimen. Sago as feed Feeds Sheep - Feeding and feeds 2000 Thesis http://psasir.upm.edu.my/id/eprint/10530/ http://psasir.upm.edu.my/id/eprint/10530/1/FP_2000_19_A.pdf application/pdf en public phd doctoral Universiti Putra Malaysia Sago as feed Feeds Sheep - Feeding and feeds Faculty of Agriculture English
institution Universiti Putra Malaysia
collection PSAS Institutional Repository
language English
English
topic Sago as feed
Feeds
Sheep - Feeding and feeds
spellingShingle Sago as feed
Feeds
Sheep - Feeding and feeds
Muhamad, Yahya
Digestion of Sago Based Diets in Sheep
description Sago (Metroxylon sagu, Rott.) pith meal (SPM) can be used as an excellent energy feed for ruminant livestock because the pith contains high amount of starch and some indigenous fibre. However, there is a lack of information on the nutritive properties of SPM and effects of feeding SPM on the digestion parameters of ruminant animal. Therefore, the objectives of the present studies were: to determine the physical and chemical caharacteristics of SPM; and to study the effects of feeding SPM based diets on the growth performance of lambs and on digestibility of the diets , especially in relation to nutrient flows and microbial protein synthesis, in sheep. The experimental diets used were SPM plus soya bean meal (Diet A), SPM plus soya bean meal and urea (Diet B) and SPM plus fish meal and urea (Diet C). The crude protein content of SPM was less than 2% while the neutral detergent fibre (NDF), starch and gross energy (GE) contents on dry weight basis were 12.8%, 72.2% and 1 7.5 MJ/kg, respectively. Scanning electron microscopy revealed that SPM consisted mainly of starch granules, parenchyma cell walls and vascular bundle fibres which were degraded in situ at different rates by the rumen microbes. The digestibility of organic matter in dry matter (DOMD) was similar for all the diets which averaged 77-78%, but the metabolisable (ME) and net energy for fattening (NEJ values were: 10.4, 10.4, 11.0 MJ ME and 7.7, 7.7, 8.0 MJ NEr (P<0.05) per kg of feed dry weight for the three diets, respectively. The performance responses of 21 lambs fed with the three diets showed that their final weights and average daily gains (ADG) were: Diet A, 28.9 kg and 122 g; Diet B, 21.9 kg and 50 g: Diet C, 24.6 kg and 76 g (P<0.05). The efficiencies of microbial protein synthesis measured in terms of g Nlkg starch digested in the rumen for these respective diets were 81.3, 21.9 and 32.3 g (P<0.10). In conclusion, sago-pith meal contains an energy value equivalent to maize grains but having additional benefits from the indigenous fibres which are necessary for cellulolysis and the roughage effect. To improve the efficiency of energy utilization from sago diets, ruminal pH depression due to rapid breakdown of starch need to be sufficiently controlled such as through proper feed processing, ration formulation and feeding regimen.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Muhamad, Yahya
author_facet Muhamad, Yahya
author_sort Muhamad, Yahya
title Digestion of Sago Based Diets in Sheep
title_short Digestion of Sago Based Diets in Sheep
title_full Digestion of Sago Based Diets in Sheep
title_fullStr Digestion of Sago Based Diets in Sheep
title_full_unstemmed Digestion of Sago Based Diets in Sheep
title_sort digestion of sago based diets in sheep
granting_institution Universiti Putra Malaysia
granting_department Faculty of Agriculture
publishDate 2000
url http://psasir.upm.edu.my/id/eprint/10530/1/FP_2000_19_A.pdf
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