Comparison of the effect of kibbled carob pods and barley as energy sources at various straw: Concentrate ratios with untreated or ammoniated wheat straw on the rate and extent of in vitro fermentation of straw based diets

Ibrahim S. Omer Al-Mukhtar, . and C. Rymer, . and W. Radley, . (2009) Comparison of the effect of kibbled carob pods and barley as energy sources at various straw: Concentrate ratios with untreated or ammoniated wheat straw on the rate and extent of in vitro fermentation of straw based diets. [Proceedings Paper]

A study was conducted to investigate the nutritive value of kibbled carob pods through chemical analysis and to determine the rate and extent of the microbial fermentation of kibbled carob pods compared with barley grains as an energy supplement for wheat straw. Three ratios of wheat straw to concentrate were used namely 70:30 50:50 and 30:70 on a fresh weight basis. The concentrate portion was either barley plus soybean meal or kibbled carob pods KCP plus soybean meal SBM. The straws were either untreated US or treated with anhydrous ammonia AS. It was observed that organic matter content of KCP was comparable with that of barley grains and higher than that of straws or soybean meal. The result of chemical analysis also showed that NDF in KCP was similar to that of barley grains lower than that of straws and higher than that of S8M. The ADF content of KCP was higher than that of either barley grains or S8M and lower than that of straws. Crude protein content was low in kibbled carob pods compared with the other ingredients. The results of this investigation suggest that kibbled carob pods is a highly fermentable feed. There appears to be little benefit in ammoniating straw if it is fed with carob whereas a barley supplemented diet is more digestible if the straw is treated with ammonia. The optimum rate of concentrate inclusion does not appear to be affected by substituting barley with carob with regard to the overall dry matter digestibility. It would therefore appear that carob does have potential as a supplement to straw.

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Abstract

A study was conducted to investigate the nutritive value of kibbled carob pods through chemical analysis and to determine the rate and extent of the microbial fermentation of kibbled carob pods compared with barley grains as an energy supplement for wheat straw. Three ratios of wheat straw to concentrate were used namely 70:30 50:50 and 30:70 on a fresh weight basis. The concentrate portion was either barley plus soybean meal or kibbled carob pods KCP plus soybean meal SBM. The straws were either untreated US or treated with anhydrous ammonia AS. It was observed that organic matter content of KCP was comparable with that of barley grains and higher than that of straws or soybean meal. The result of chemical analysis also showed that NDF in KCP was similar to that of barley grains lower than that of straws and higher than that of S8M. The ADF content of KCP was higher than that of either barley grains or S8M and lower than that of straws. Crude protein content was low in kibbled carob pods compared with the other ingredients. The results of this investigation suggest that kibbled carob pods is a highly fermentable feed. There appears to be little benefit in ammoniating straw if it is fed with carob whereas a barley supplemented diet is more digestible if the straw is treated with ammonia. The optimum rate of concentrate inclusion does not appear to be affected by substituting barley with carob with regard to the overall dry matter digestibility. It would therefore appear that carob does have potential as a supplement to straw.

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Item Type:	Proceedings Paper
Additional Information:	3 tables
AGROVOC Term:	Carobs
AGROVOC Term:	Pods
AGROVOC Term:	In vitro
AGROVOC Term:	Straw
AGROVOC Term:	Barley
AGROVOC Term:	Wheat straw
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:27
URI:	http://webagris.upm.edu.my/id/eprint/15781

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