Supplementation of rapeseed and linseed oils to sheep rations: effects on ruminal fermentation characteristics and protozoal populations

Majewska, Małgorzata; Miltko, Renata; Bełżecki, Grzegorz; Skomiał, J.; Kowalik, Barbara

doi:10.17221/9/2017-cjas

Cited by 16 publications

(15 citation statements)

References 30 publications

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“…Moreover, MSO with more than 70% unsaturated fatty acid contents, can be used as an effective tool to alter fatty acid profiles of milk and meat by reducing saturated and trans fatty acids while increasing unsaturated fatty acids. Results of supplementation of MSO on milk production observed in this study are in agreement with earlier studies which used fish oil (Whitlock et al, 2006;Heravi et al, 2007;and Barfourooshi et al, 2018), rapeseed and linseed oil (Majewska et al, 2017) as a fat supplements. Other studies have not reported any effect of fish oil on milk production.…”

Section: Effect Of Mso On Milk Yield and Composition Of Lactation Ewessupporting

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

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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.

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Section: Effect Of Mso On Milk Yield and Composition Of Lactation Ewessupporting

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

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“…Rumen fermentation characteristics are considered to be effective indicators in the evaluation of feeds and feeding for ruminants [1]. However, the once-or twice-daily feeding regime, which results in large fluctuations in rumen fermentation, as well as variable nutrient flows for utilization by ruminants, has often been employed in previous studies [2,3].…”

Section: Introductionmentioning

confidence: 99%

Sheep Rumen Fermentation Characteristics Affected by Feeding Frequency and Feeding Level When Fed Fresh Forage

Sun

Chen

Pacheco

et al. 2019

Animals

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Simple Summary: Ruminant production relies on nutrients obtained from feed fermentation in the rumen. In grazing ruminant production systems, fresh forage is the major or sole source of feed. Feeding frequency and feeding level are two important factors affecting rumen fermentation. This study investigated how these factors affect the fermentation of fresh forage in the rumen for in-depth evaluation of the nutritional value of two types of forages and for better understanding of their digestion by ruminants. To achieve the objectives of the study, fresh chicory or perennial ryegrass was fed to sheep hourly or twice-daily at low or high feeding levels. The results indicated that rumen fermentation was affected by forage species, feeding frequency, feeding level and their interactions and the differences in rumen fermentation were more apparent when feeding was performed hourly rather than twice-daily. This study highlighted the importance of feeding frequency on manipulating sheep ruminal metabolism when fed fresh forage. Abstract: Feeding frequency and feeding level are two important factors affecting rumen fermentation characteristics, but few studies on these have been conducted on fresh forage. Eight rumen-fistulated sheep were fed either fresh chicory or perennial ryegrass hourly in the first period (d 14 to 21) of the experiment and twice-daily in the second period (d 22 to 27) at 1.3 or 2.2 times the requirement of metabolizable energy for maintenance. When fed hourly, but not twice-daily, rumen fluid pH value was affected by forage species and feeding level. The total concentrations of short-chain fatty acid (SCFA) were similar at both feeding levels when fed chicory hourly, but they were greater at the higher feeding level in comparison with the lower feeding level when fed perennial ryegrass. However, forage species and feeding level did not affect rumen fluid total SCFA concentration when sheep were fed twice-daily. Therefore, rumen fermentation characteristics were affected by forage species, feeding frequency, feeding level and their interactions and the differences in fermentation characteristics were more apparent when feeding was performed hourly rather than twice-daily. This study highlighted the importance of feeding frequency on manipulating sheep ruminal metabolism when fed fresh forage.

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“…In our study, it was shown that acetate, propionate and butyrate administered intravenously stimulated pancreatic juice flow. It was found that linseed oil addition to sheep diets significantly increased the concentration of VFAs in rumen fluid, particularly of acetate, in comparison with the control group (Majewska, Miltko, Bełżecki, Skomiał, & Kowalik, ). Harmon () reported that suckling ruminants without fully developed forestomach, receiving only milk, were more sensitive to diet modifications than adult ruminants.…”

Section: Ingredients and Chemical Composition Of The Diet For Sheepmentioning

confidence: 93%

“…() in which increased activity of lipase in cows fed different physical forms of rapeseed in comparison to control animals was observed. In our previous study, it was shown that the elevated activity of lipase appeared to be the result of the higher daily fat intake by the sheep and increased fat flow to the duodenum (Majewska, Miltko et al., ). Moreover, the present study demonstrated the increasing trend in the bile–pancreatic juice secretion associated with elevated lipase activity in sheep fed diets with oils addition.…”

Section: Ingredients and Chemical Composition Of The Diet For Sheepmentioning

confidence: 95%

The effect of supplementing sheep with rapeseed and linseed oils on the activity of pancreatic digestive enzymes

Kowalik

Majewska

Miltko

et al. 2018

Animal Physiology Nutrition

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The aim of this study was to compare the effect of rapeseed and linseed oils added to the diet on pancreatic enzyme activities in sheep. The experiment was conducted on six adult sheep with a catheter introduced into the common bile-pancreatic duct and a T-cannula into the duodenum. The animals were divided into three groups, two sheep in each. A twice-replicated 3 × 3 Latin square was used in the experimental design. The sheep were fed meadow hay and the concentrate alone or the same ration supplemented with rapeseed or linseed oils at a dose of 5% of the basal diet. After adaptation period, a mixture of pancreatic and bile juice was collected for three consecutive days. The secretion of bile-pancreatic juice showed an increasing trend in sheep fed rapeseed and linseed oils (69.5 and 68.5 ml/hr respectively) in comparison with control ones (59.8 ml/hr). Lipase and trypsin activities were significantly increased when sheep were fed diets with rapeseed or linseed oils (175 and 21.6 or 179 and 23.2 U/L respectively) in comparison with those fed control diet (128 and 13.1 U/L respectively). It was concluded that oil as a dietary supplement can mainly modify the secretion of bile-pancreatic juice and enzymatic activity of the pancreas and also might affect animal production.

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Supplementation of rapeseed and linseed oils to sheep rations: effects on ruminal fermentation characteristics and protozoal populations

Cited by 16 publications

References 30 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

Sheep Rumen Fermentation Characteristics Affected by Feeding Frequency and Feeding Level When Fed Fresh Forage

The effect of supplementing sheep with rapeseed and linseed oils on the activity of pancreatic digestive enzymes

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