The effects of level of fish oil inclusion in the diet on rumen digestion and fermentation parameters in cattle offered grass silage based diets

Keady, T.W.J.; Mayne, C. S.

doi:10.1016/s0377-8401(99)00073-5

Cited by 21 publications

(19 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The results indicated that MSO supplementation exhibited no significant (P>0.05) effect on IVTDMD up to 3% level, however, IVTDMD was significantly (P<0.05) decreased with 4% MSO level. These findings are consistent with earlier reports revealing non-significant effect on DM degradability in ruminants in response to supplementation of linseed oil (Gawad et al, 2015a), soybean (Toral et al, 2009), and fish oil (Keady and Mayne, 1999), despite the shift in fermentation pattern in the rumen was observed. These reports suggested that, although, cellulolytic bacteria usually might be negatively, affected by lipid supplementation (Doraeu and Chilliared, 1997), other population of bacteria can replace their niches.…”

Section: Effect Of Mso Supplementation On Dm and Cp Degradability Andsupporting

confidence: 93%

Effect of Moringa Oleifera Seed Oil as Natural Feed Supplement on the Productive Performance of Lactating Ewes

Ebeid

Shaaban

Gawad

et al. 2019

Egyptian Journal of Nutrition and Feeds

View full text Add to dashboard Cite

oringa seed oil (MSO) was used as a feed additive to evaluate its potential to manipulate rumen fermentation and productive performance in lactating Ossimi ewes. Cold extracted MSO was supplemented at four different levels (1, 2, 3, and 4%) in diet using in vitro batch culture system for optimizing best supplementation level for sheep. Results of in vitro study revealed non-significant (P>0.05) effect of MSO on true dry matter degradability (TDMD) up to 3% inclusion level, however, decrease in TDMD was observed by 4% MSO supplementation as compared to control and other treatment groups. Accumulated gas production was significantly (P<0.05) increased by MSO supplementation while nonsignificant decrease in ammonia concentration was observed. Fermentation pattern and TDMD revealed 1% MSO as an appropriate level for supplementation, which was further evaluated by in vivo trial. Fourteen lactating Ossimi ewes (about 3 years old with an average body weight of 51 ± 0.5 kg after 5 days of parturition) were randomly assigned into two experimental groups (seven each). One group was fed a basal diet without any supplementation and served as control. Other group was fed basal diet supplemented with 1% MSO on dry matter basis. Animals were fed these diets for a period of 45 days. Nutrient digestibility, milk production and composition were determined. Results revealed that supplementation of MSO significantly (P<0.05) increased milk yield and fat corrected milk. Similarly, it is also significantly (P<0.05) increased yield of milk components (protein, lactose, and SNF) as compared to the control group. However, milk composition (%) was not significantly (P>0.05) affected by treatment. Our study revealed that MSO could be used as a natural fat supplement to meet energy requirements of lactating sheep. Moreover, antioxidants and other bioactive compounds, present in MSO can effectively modulate rumen fermentation which makes it a potential alternative of chemical feed additives (especially antibiotics) to improve feed digestibility and utilization for increasing animal productivity.

show abstract

Section: Effect Of Mso Supplementation On Dm and Cp Degradability Andsupporting

confidence: 93%

Effect of Moringa Oleifera Seed Oil as Natural Feed Supplement on the Productive Performance of Lactating Ewes

Ebeid

Shaaban

Gawad

et al. 2019

Egyptian Journal of Nutrition and Feeds

View full text Add to dashboard Cite

show abstract

“…Earlier studies reported that FO has no major effect on rumen pH or fermentation characteristics in growing cattle fed grass silage or red clover silage as the sole feed , or diets containing grass silage (Keady and Mayne, 1999;Kim et al,, 2008), but enhanced the ratio of glucogenic:lipogenic precursors in the rumen of steers fed maize silage-based diets (Shingfield et al, 2010b). It is probable that changes in rumen fermentation patterns are related to the effect of FO on nutrient digestion in the rumen and alterations in the relative abundance of specific microbial populations.…”

Section: Rumen Fermentationmentioning

confidence: 98%

“…Previous investigations have shown that incremental amounts of FO in the diet from 0 to 3.9% DM had no effect on DMI in steers offered grass {Lolium spp.) silage diets ad hbitum (Keady and Mayne, 1999) or at restricted levels (Kim et al, 2008;Lee et al, 2008). In contrast, inclusion of FO at 2.4 to 3% DM has been reported to decrease the intake of growing cattle fed red clover ( Trifolium pratense) silage or maize silage-based diets (Shingfield et al, 2010b) at 90 to 95% of ad libitum intake.…”

Section: Nutrient Intake and Digestionmentioning

confidence: 99%

Effect of linseed oil and fish oil alone or as an equal mixture on ruminal fatty acid metabolism in growing steers fed maize silage-based diets1

Shingfield

Lee

Humphries

et al. 2011

Journal of Animal Science

View full text Add to dashboard Cite

Because of the potential benefits to human health, there is interest in increasing 18:3n-3, 20:5n-3, 22:6n-6, and cis-9,trans-11 CLA in ruminant foods. Four Aberdeen Angus steers (406 ± 8.2 kg of BW) fitted with ruminal and duodenal cannulas were used in a 4 × 4 Latin square experiment with 21-d periods to examine the potential of fish oil (FO) and linseed oil (LO) in the diet to increase ruminal outflow of trans-11 18:1 and total n-3 PUFA in growing cattle. Treatments consisted of a control diet (60:40; forage:concentrate ratio, on a DM basis, respectively) based on maize silage, or the same basal ration containing 30 g/kg of DM of FO, LO, or a mixture (1:1, wt/wt) of FO and LO (LFO). Diets were offered as total mixed rations and fed at a rate of 85 g of DM/(kg of BW(0.75)/d). Oils had no effect (P = 0.52) on DMI. Linseed oil had no effect (P > 0.05) on ruminal pH or VFA concentrations, whereas FO shifted rumen fermentation toward propionate at the expense of acetate. Compared with the control, LO increased (P < 0.05) 18:0, cis 18:1 (Δ9, 12-15), trans 18:1 (Δ4-9, 11-16), trans 18:2, geometric isomers of 9,11, 11,13, and 13,15 CLA, trans-8,cis-10 CLA, trans-10,trans-12 CLA, trans-12,trans-14 CLA, and 18:3n-3 flow at the duodenum. Inclusion of FO in the diet resulted in greater (P < 0.05) flows of cis-9 16:1, trans 16:1 (Δ6-13), cis 18:1 (Δ9, 11, and 13), trans 18:1 (Δ6-15), trans 18:2, 20:5n-3, 22:5n-3, and 22:6n-3, and decreased (P < 0.001) 18:0 at the duodenum relative to the control. For most fatty acids at the duodenum, responses to LFO were intermediate of FO and LO. However, LFO resulted in greater (P = 0.04) flows of total trans 18:1 than LO and increased (P < 0.01) trans-6 16:1 and trans-12 18:1 at the duodenum compared with FO or LO. Biohydrogenation of cis-9 18:1 and 18:2n-6 in the rumen was independent of treatment, but both FO and LO increased (P < 0.001) the extent of 18:3n-3 biohydrogenation compared with the control. Ruminal 18:3n-3 biohydrogenation was greater (P < 0.001) for LO and LFO than FO, whereas biohydrogenation of 20:5n-3 and 22:6n-3 in the rumen was marginally less (P = 0.05) for LFO than FO. In conclusion, LO and FO at 30 g/kg of DM altered the biohydrogenation of unsaturated fatty acids in the rumen, causing an increase in the flow of specific intermediates at the duodenum, but the potential of these oils fed alone or as a mixture to increase n-3 PUFA at the duodenum in cattle appears limited.

show abstract

“…). Fish oil has also been reported to increase rumen propionate (C3) concentration (Keady & Mayne ; Wachira et al . ) and was suggested as a potent rumen methane inhibitor (Fievez et al .…”

Section: Introductionmentioning

confidence: 99%

Conjugated fatty acids and methane production by rumen microbes when incubated with linseed oil alone or mixed with fish oil and/or malate

Gao

Yan

et al. 2015

Animal Science Journal

View full text Add to dashboard Cite

We hypothesized that manipulating metabolism with fish oil and malate as a hydrogen acceptor would affect the biohydrogenation process of α-linolenic acid by rumen microbes. This study was to examine the effect of fish oil and/or malate on the production of conjugated fatty acids and methane (CH4 ) by rumen microbes when incubated with linseed oil. Linseed oil (LO), LO with fish oil (LO-FO), LO with malate (LO-MA), or LO with fish oil and malate (LO-FO-MA) was added to diluted rumen fluid, respectively. The LO-MA and LO-FO-MA increased pH and propionate concentration compared to the other treatments. LO-MA and LO-FO-MA reduced CH4 production compared to LO. LO-MA and LO-FO-MA increased the contents of c9,t11-conjugated linoleic acid (CLA) and c9,t11,c15-conjugated linolenic acid (CLnA) compared to LO. The content of malate was rapidly reduced while that of lactate was reduced in LO-MA and LO-FO-MA from 3 h incubation time. The fold change of the quantity of methanogen related to total bacteria was decreased at both 3 h and 6 h incubation times in all treatments compared to the control. Overall data indicate that supplementation of combined malate and/or fish oil when incubated with linseed oil, could depress methane generation and increase production of propionate, CLA and CLnA under the conditions of the current in vitro study.

show abstract

The effects of level of fish oil inclusion in the diet on rumen digestion and fermentation parameters in cattle offered grass silage based diets

Cited by 21 publications

References 25 publications

Effect of Moringa Oleifera Seed Oil as Natural Feed Supplement on the Productive Performance of Lactating Ewes

Effect of Moringa Oleifera Seed Oil as Natural Feed Supplement on the Productive Performance of Lactating Ewes

Effect of linseed oil and fish oil alone or as an equal mixture on ruminal fatty acid metabolism in growing steers fed maize silage-based diets1

Conjugated fatty acids and methane production by rumen microbes when incubated with linseed oil alone or mixed with fish oil and/or malate

Contact Info

Product

Resources

About