The effect of starch supplementation of straw on microbial protein supply in sheep

Gomes, Maria José; Hovell, F. D. DeB.; Chen, X. B.; Nengomasha, E.M.; Fikremariam, D.

doi:10.1016/0377-8401(94)90052-3

Cited by 32 publications

(14 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The efficiency of MNS in the present study, ranging between 20.13 g kg −1 DOMI and 23.38 g kg −1 DOMI among treatments, was higher compared to the MNS efficiencies observed by Gomes et al (1994). These higher MNS efficiencies could be indicative that energy supplementation of the wethers among all treatments was sufficient for optimal MNS production.…”

Section: Resultscontrasting

confidence: 67%

“…While the starch supplemented in this treatment only supplied 60 % of the supplemental ME (with the SFM supplying the remainder), the starch levels were significantly less than the maximum levels supplied by Gomes et al (1994). The possibility therefore does exist that the amount of starch (and total energy intake of the supplements) in the experimental diets of the present study could have been insufficient for maximising MNS.…”

Section: Resultsmentioning

confidence: 67%

“…This concentration is below the 20 % starch level considered to be detrimental to forage intake in ruminants fed forages supplemented with protein (Gomes et al, 1994;Henning et al, 1980). In addition, the starch was supplemented twice daily in the present study, together with urea, in equal proportions and was introduced into the rumen.…”

Section: Resultsmentioning

confidence: 92%

“…As stated earlier, the supplements were iso-energetic and as such, the lack of differences observed between treatments were expected (Table 4). In a study conducted by Gomes et al (1994) on sheep fed low quality wheat straw, the highest MNS (18.2 g), using PD as an estimator of MNS, were observed in those sheep where starch was supplemented at 18.6 % of the total diet. The highest starch intake at 50.3 g starch DM d…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Substitution of rumen degradable nitrogen with urea in sheep fed low quality Eragrostis curvula hay

Mynhardt

Niekerk

Erasmus

et al. 2016

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

The aim of the present study was to determine whether sunflower meal (SFM), a highly rumen degradable protein (RDP) source, can be substituted with non-protein nitrogen (NPN, urea) without impacting negatively on intake, digestibility, rumen fermentation and microbial nitrogen (N) synthesis (MNS) in wethers consuming low quality Eragrostis curvula hay. Five wethers were fed ad libitum, low quality hay and supplemented twice-daily in equal proportions, via the rumen cannulae, one of five iso-nitrogenous and iso-energetic supplements in a 5 × 5Latin square design experiment. The supplements differed in the ratios of rumen degradable N (RDN) supplied by either SFM and/or urea and is presented as percentage of RDN supplied by urea: T0 (100 % SFM, 0 % urea); T15 (85 % SFM, 15 % urea); T30 (70 % SFM, 30 % urea); T45 (55 % SFM, 45 % urea) and T60 (40 % SFM, 60 % urea). Forage intake and total tract dry matter (DM) digestibility did not differ; however, higher forage neutral detergent fiber (NDF) digestibilities were observed in the sheep supplemented with the higher urea-treatments (T45 and T60) compared to T15. Neither rumen pH nor total rumen volatile fatty acid (VFA) concentraions differed.The mean rumen ammonia nitrogen (RAN) concentration of the sheep supplemented with T60 was higher than T30 (9.35 mg dL −1 vs. 7.41 mg dL −1 ); however, no differences were observed in MNS or efficiency of MNS among treatments. Results suggest that up to 60 % of RDN supplied by SFM can be substituted with urea, without affecting intake, digestibility or MNS in wethers fed a low quality tropical hay.

show abstract

Section: Resultscontrasting

confidence: 67%

Section: Resultsmentioning

confidence: 67%

Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Substitution of rumen degradable nitrogen with urea in sheep fed low quality Eragrostis curvula hay

Mynhardt

Niekerk

Erasmus

et al. 2016

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

show abstract

“…Blummel et al (1999) recommended that roughage with higher PF has been shown to have higher DMI. It might be due to the increased passage of microbial protein to the small intestine which result the increased passage of both fluids and solids with increased intake (Gomes et al, 1994;Djouvinov and Todorov, 1994).…”

Section: Discussionmentioning

confidence: 99%

Feeding values of conventional diets and their effects on the performances of dairy cows in Central Myanmar

Aung

Kyawt²,

Htun³

et al. 2016

jaar

View full text Add to dashboard Cite

The conventional diets have been fed to dairy cows since many years ago in Myanmar, however there is a little scientific information regarding the use of those diets as feed. Therefore, this study was conducted to evaluate the feeding values of conventional diets and their effects on the performances of dairy cows in Central Myanmar. Nine cross-bred Holstein Friesian cows (460±22kg) with the 12 th week of lactation were randomly allocated to one of three treatment groups with three replicates in a completely randomized design. The three treatments were Diet-ST (common diet from Sin Tel, Tatar U Township), Diet-MN (common diet from Myay Ngu, Tatar U Township) and Diet-AM (common diet from Amarapura Township). Cows were fed treatments for 60 days. The roughage to concentrate ratios ranged from 53:47 to 72:28 and the nutritive values were significantly different (p<0.05) each other. The highest nutrient intakes were observed in dairy cows fed on Diet-MN, however the nutrient digestibility were not different (p>0.05) except the CP and ether extract digestibility (CPD and EED). The nitrogen utilization was highest in dairy cows fed on Diet-ST and the lowest value was observed in the dairy cows fed on Diet-AM. Although the milk compositions were not different (p>0.05), the average milk yield of dairy cows offered the Diet-MN was significantly higher (p<0.05) than those of dairy cows fed on other diets. The highest total feed cost (p<0.05) was found in Diet-AM and the lowest value (p<0.05) was in Diet-MN. According to these findings, it was concluded that the highest feeding value was observed in Diet-MN and its effect on the performances of dairy cows was also greater than others. Moreover, it would be suggested that better bean residues and sesame residues could be used as fibre sources in the diets of dairy cows.

show abstract

Estimation of Microbial Protein Supply in Ruminants Using Urinary Purine Derivatives

Makkar¹,

Chen²

2004

View full text Add to dashboard Cite

The effect of starch supplementation of straw on microbial protein supply in sheep

Cited by 32 publications

References 14 publications

Substitution of rumen degradable nitrogen with urea in sheep fed low quality Eragrostis curvula hay

Substitution of rumen degradable nitrogen with urea in sheep fed low quality Eragrostis curvula hay

Feeding values of conventional diets and their effects on the performances of dairy cows in Central Myanmar

Estimation of Microbial Protein Supply in Ruminants Using Urinary Purine Derivatives

Contact Info

Product

Resources

About