Effects of Protein and Carbohydrate Supplementations on Fibre Digestion and Microbial Population of Sheep

Jetana, T.; Abdullah, Norhafizah; Halim, R. A.; Jalaudin, S.; Ho, Yin Wan

doi:10.5713/ajas.1998.510

Cited by 5 publications

(3 citation statements)

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“…The lower N degradability probably led to synchrony between N and fibre fermentation which improved rations’ digestibility (Stern et al., 1994; Melaku et al., 2005). Higher fibre degradation has been reported in animals supplemented with moderately soluble protein compared with those supplemented with rapidly degradable protein (Jetana et al., 1998). Probably, N recycling may be a mechanism that allows RUP to contribute to the ruminal N pool (Wickersham et al., 2004).…”

Section: Discussionmentioning

confidence: 99%

Nutrient digestibility and energy value of sheep rations differing in protein level, main protein source and non‐forage fibre source

Milis

Liamadis

2007

Animal Physiology Nutrition

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Two in vivo digestion trials were conducted to evaluate the effects of diet's crude protein (CP) level, N degradability, and non-forage fibre source (NFFS) on nutrient digestibility and energy value of sheep rations. In each trial, rams were fed four isocaloric and isofibrous rations, differing in main protein and/or NFFS source. At the first trial, mean CP/metabolizable energy (ME) ratio of the diets was 17 g/MJ ME and at the second trial, 13 g/MJ ME. At both trials, the first ration contained cotton seed cake (CSC) and wheat bran (WB), the second CSC and corn gluten feed (CGF), the third corn gluten meal (CGM) and WB and the fourth CGM and CGF. Data of both trials were analysed in common as 2 x 2 x 2 factorial experimental design. Low N degradability (CGM) had positive effect on CP, neutral detergent fibre (NDF) and acid detergent fibre (ADF) digestibility of the ration. Those results suggest that an increase in rumen undegradable protein (RUP) content does not negatively affect nutrient digestibility of sheep rations. Corn gluten feed significantly elevated crude fibre (CF) digestibility, in comparison with WB. Rations having high CP/ME ratio had higher digestibility of CP in comparison with those having low CP/ME ratio; the opposite was true for ether extract, CF, NDF and ADF digestibilities. CP level x N degradability interaction negatively affected energy value of the rations that had high CP level and high N degradability. Former suggest that when CP content is high then N degradability should be low otherwise ration's ME is negatively affected. CP digestibility and coefficient q of the rations containing WB and having high N degradability (N degradability x NFFS interaction) were the lowest suggesting that the combination of CSC and WB negatively affected CP digestibility and energy value of the ration. This could be explained by a reduced microbial CP synthesis, or lower RUP digestibility or both.

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Section: Discussionmentioning

confidence: 99%

Nutrient digestibility and energy value of sheep rations differing in protein level, main protein source and non‐forage fibre source

Milis

Liamadis

2007

Animal Physiology Nutrition

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“…NDF digestibility decreased in animals supplemented with RTPP, possibly resulting from RTP which contained highly available sucrose, more than the other supplements; therefore, pH in the rumen may decrease (Jetana et al 1998), the cellulolytic microbial activity might be constrained (Stewart 1977), and fibre digestion may be depressed (Hoover 1986;Ørskov 1986). The pattern of whole tract digestions in Experiment 2 was similar to those in Experiment 1.…”

Section: Effects On Whole Apparent Digestibilitymentioning

confidence: 97%

The use of tropical protein-rich leaves as supplements to Thai swamp buffalo receiving a basal diet of rice straw and treated leucaena (Leucaena leucocephala)

Jetana

Vongpipatana

Usawang

et al. 2010

Trop Anim Health Prod

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Two experiments were conducted to determine (i) the effects of protein-rich trees (PRTs) and (ii) the effects of leucaena treated with NaOH solution and leucaena plus polyethylene glycol (PEG) on nutrient digestibility, nitrogen (N) balance, urinary purine derivatives excretion and blood metabolites in Thai swamp buffaloes. In Experiment 1, animals were fed with rice straw as a basal diet and one of the four PRT supplements: (i) oven-dried rain tree pods (RTPP, control); (ii) sun-dried leucaena leaves; (iii) sun-dried cassia leaves and (iv) sun-dried mulberry leaves. Fibre digestibility and N balance were lower (P < 0.05), but microbial N in the rumen was higher (P < 0.05) in animals supplemented with RTPP than in those fed with the other supplements. In Experiment 2, animals were fed with rice straw as a basal diet and leucaena were treated in one of three ways: (i) untreated (control), (ii) leucaena treated with NaOH solution and (iii) leucaena + PEG. Fibre digestibility and N balance in the rumen improved (P < 0.05) in animals supplemented with leucaena + PEG, but microbial N was not increased. The study demonstrated a way of using local PRTs for a suitable and worthwhile method to improve the quality of buffalo feeding systems in the tropics.

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“…The digestibility coefficients of NDF decreased in animals supplemented with RTP (0.38), possibly resulting from RTP which contained high available sucrose, more than the other supplements, therefore pH in the rumen may decrease (Jetana et al 1998), the cellulolytic microbial activity might be constrained (Stewart 1977) and fibre digestion depressed (Hoover 1986;Ørskov 1986).…”

Section: Effects On Whole Apparent Digestibility and N Balancementioning

confidence: 99%

Potential Benefits from the Utilization of Leucaena leucocephala in Thai Swamp Buffaloes Production

Jetana

2017

Proceedings of International Seminar on Livestock Production and Veterinary Technology

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This paper aims to comply four studies of using Leucaena leucocephala as feed supplement on Thai swamp buffaloes. These studies were conducted by the Research and Development Center for Livestock Production Technology, Faculty of Veterinary Science, Chulalongkorn University, Thailand. Leucaena is interesting forage which needs further study to investigate which technology is suitable to use it as a feed for swamp buffaloes. In this review, leaves of leucaena were used as a main feed ingredient in dietary supplement. The rain tree pods (RTP) dietary supplement containing high sugar enhanced microbial supply to the small intestine. On other the hand, rain tree pod also can be used as an appetizing material for combination with leaves of leucaena, mulberry and cassia. The low fibre digestibility in dietary supplement containing leucaena may be due to tannins contents. Sodium hydroxide (NaOH) treatment and addition of polyethylene glycol (PEG) are ways to inactivate tannins contained in the leucaena. Toxicity of leucaena did not affect buffaloes, when appropriate proportion of leucaena to ruzi grass was fed. The mixed diet containing leucaena not more than 25% was the highest benefit for buffaloes as the mimosine+di-hydroxypyridine (DHP) in the urine was less 100 mg/kgBW 0.75 . The high proportions of RTPP (rain tree pod pellets) in leucaena increased purine derivatives (PDs) and mimosine + DHP in the urine, but none the different proportions of RTPP affects to purine derivatives/digestible organic matter (PDs/DOMI) ratios. Several studies demonstrated the approach to use leucaena as the alternative feed supplement, to enhance the quality of feeds in swamp buffaloes production improvement. The practical implication of this review, is that it would be benefit for the smallholder farmers to use leucaena for their livestock, because it is not only to improve quality of feeds and reduce cost of feed, but also higher biodiversity results in a higher N retention in soils and a lower methane releases in the atmosphere.

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Effects of Protein and Carbohydrate Supplementations on Fibre Digestion and Microbial Population of Sheep

Cited by 5 publications

References 0 publications

Nutrient digestibility and energy value of sheep rations differing in protein level, main protein source and non‐forage fibre source

Nutrient digestibility and energy value of sheep rations differing in protein level, main protein source and non‐forage fibre source

The use of tropical protein-rich leaves as supplements to Thai swamp buffalo receiving a basal diet of rice straw and treated leucaena (Leucaena leucocephala)

Potential Benefits from the Utilization of Leucaena leucocephala in Thai Swamp Buffaloes Production

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