Effect of unsaturated C&lt;sub&gt;18&lt;/sub&gt; fatty acids (oleic, linoleic and α-linolenic acids) on ruminal fermentation and production of fatty acids isomers in artificial rumen

Jalč, D.; Čertı́k, Milan; Kundrikova, K.; Namestkova, P.

doi:10.17221/2012-vetmed

Cited by 25 publications

(22 citation statements)

References 27 publications

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“…These many output are similar as the experimental results of Jalc et al (2007) that that use oleate, linoleate, and alfa lioleate in the ration based on lucerne and barley using Rusitec method (Hristov et al, 2005) with 5% oil into the cattle ration. SzumacherStrabeh et al (2009) and Tores-Perez et al (2011) use 5% oil in the sheep ration.…”

Section: Rumen Fermentationsupporting

confidence: 80%

Effect of sunflower oil supplementation as unsaturated fatty acid source on rumen fermentability and performance of lactating Garut ewes

Khotijah

Pandiangan

Astuti

et al. 2017

J. Indonesian Trop. Anim. Agric.

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ABSTRAKPenelitian bertujuan mengevaluasi peningkatan level energi ransum kaya asam lemak tidak jenuh dari minyak bunga matahari terhadap konsumsi zat makanan, fermentabilitas rumen dan performa induk domba pada fase laktasi. Penelitian menggunakan 15 ekor domba induk berumur sekitar 1,5 tahun, beranak pertama yang dikandangkan secara individu bergabung dengan anak-anaknya. Rancangan percobaan yang digunakan adalah Acak Lengkap 3 perlakuan 5 ulangan. Perlakuan terdiri atas R1= ransum tanpa penambahan minyak bunga matahari, R2= ransum dengan 4% minyak bunga matahari, R3= ransum dengan 6% minyak bunga matahari. Peubah yang diukur yaitu konsumsi bahan kering dan zat makanan, performa induk (bobot saat lahir, bobot saat sapih, penyusutan bobot badan), VFA total dan parsial, rasio acetat propionate, produksi methana, populasi bakteri dan protozoa rumen Data dianalisis statistik dan dekriptif. Perlakuan tidak mempengaruhi konsumsi bahan kering, protein kasar , serat kasar dan mineral. Perlakuan juga tidak mempengaruhi fermentabilitas rumen dan performa induk laktasi, namun konsumsi lemak dan asam lemak tidak jenuh nyata meningkat. Perlakuan mampu menurunkan nilai penyusutan bobot badan induk. Dapat disimpulkan bahwa penambahan minyak bungan matahari sebagai sumber asam lemak tidak jenuh sampai 6% dalam ransum tidak memberikan efek negative terhadap fermentabilitas rumen, dan dapat memperbaiki kondisi tubuh induk dan mempercepat pemulihan bobot badan. Kata-kata kunci: asam lemak tak jenuh, domba garut, fermentabilitas, pemulihan, minyak bunga matahari ABSTRACTThe study was aimed to evaluate the increasing levels of ration energy, with fat-rich unsaturated fatty acids from sunflower oil on the nutrient intake, rumen fermentability and performance of ewes. The experiment used fifteen ewes of 1.5 years old, primiparous, caged individually with their lambs and conducted three treatments and five replications from a completely randomized designed. Those treatments included R1= ration with 0% sunflower oil addition, R2= ration with 4% sunflower oil addition, R3= ration with 6% sunflower oil addition. The variables consisted of dry matter intake, nutrients, ewes performances (birth weight, weaning weight, decreased of body weight), total and partial VFA, the ratio of acetate: propionate, methane production, protozoa and bacterial population. Data were analyzed statistically and descriptively. The results showed that the treatments did not influence dry matter intake and nutrients,. rumen fermentability and ewes performances. Although the treatments increased (P<0.01) fat consumption and reduced shrinkage of body weight. It can be concluded that the adding sunflower oil as the resource of unsaturated fatty acids up to 6% of the ration was not negatively Sunflower Oil Supplementation for Garut Lactationg Ewes (L. Khotijah et al.) 185 affected the fermentability of rumen, moreover can improve ewes body condition and, accelerated body weight recovery.

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Section: Rumen Fermentationsupporting

confidence: 80%

Effect of sunflower oil supplementation as unsaturated fatty acid source on rumen fermentability and performance of lactating Garut ewes

Khotijah

Pandiangan

Astuti

et al. 2017

J. Indonesian Trop. Anim. Agric.

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“…In agreement with Jalč et al 60 , this effect was similar regardless the fatty acid composition of the plant oil added. The dietary addition of C18 free fatty acids decreases methane production from ruminal fermentation, and the extent of this decrease is affected by the degree of fatty acid unsaturation, the inclusion level and the basal diet 57,61 . When oils or oilseeds differing in their fatty acid (mostly esterified) composition are used as dietary lipid supplements, most of them decrease methane production, with minor differences among the diverse oils or oilseeds 49,[62][63][64] .…”

Section: Discussionmentioning

confidence: 99%

Dietary supplemental plant oils reduce methanogenesis from anaerobic microbial fermentation in the rumen

Vargas

Andrés

López-Ferreras

et al. 2020

Sci Rep

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Ruminants contribute to the emissions of greenhouse gases, in particular methane, due to the microbial anaerobic fermentation of feed in the rumen. The rumen simulation technique was used to investigate the effects of the addition of different supplemental plant oils to a high concentrate diet on ruminal fermentation and microbial community composition. The control (CTR) diet was a high-concentrate total mixed ration with no supplemental oil. The other experimental diets were supplemented with olive (OLV), sunflower (SFL) or linseed (LNS) oils at 6%. Rumen digesta was used to inoculate the fermenters, and four fermentation units were used per treatment. Fermentation end-products, extent of feed degradation and composition of the microbial community (qPCR) in digesta were determined. Compared with the CTR diet, the addition of plant oils had no significant (P > 0.05) effect on ruminal pH, substrate degradation, total volatile fatty acids or microbial protein synthesis. Gas production from the fermentation of starch or cellulose were decreased by oil supplementation. Methane production was reduced by 21-28% (P < 0.001), propionate production was increased (P < 0.01), and butyrate and ammonia outputs and the acetate to propionate ratio were decreased (P < 0.001) with oilsupplemented diets. Addition of 6% OLV and LNS reduced (P < 0.05) copy numbers of total bacteria relative to the control. In conclusion, the supplementation of ruminant diets with plant oils, in particular from sunflower or linseed, causes some favorable effects on the fermentation processes. The addition of vegetable oils to ruminant mixed rations will reduce methane production increasing the formation of propionic acid without affecting the digestion of feed in the rumen. Adding vegetable fats to ruminant diets seems to be a suitable approach to decrease methane emissions, a relevant cleaner effect that may contribute to alleviate the environmental impact of ruminant production. Ruminant herbivory is characterized by foregut microbial anaerobic fermentation of structural carbohydrates from fibrous plant-based feedstuffs providing nutrients for the animal 1. Moreover, ruminal microbes break down all components of the diet, with characteristic pathways involved in the degradation of fiber and non-structural carbohydrates, proteins and lipids 2,3. Ruminal fermentation can be considered beneficial in many aspects, but has also impacts on the environment. One of the global environmental impacts of livestock agriculture is the release of greenhouse gases (GHG) into the atmosphere 4,5 , in particular methane, a gas responsible for 20% of the global warming produced by all GHG 6,7. It is estimated that raising farm animals accounts for about 16% of anthropogenic GHG emissions, with two-thirds of the total livestock GHG emissions produced by ruminants. Methane (CH 4

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“…In this study, oil supplemented diets incubated for 24 hours in the batch culture system showed an increase in LCFA, UFA, MUFA and PUFA and a decrease in MCFA in the rumen fluid, regardless the diet composition. The observed phenomenon is rather a standard response to supplementation of unsaturated C18 FA (e.g., oleic, linoleic and α-linolenic acid) as reported by Jalč et al (2007). It should be noted that concentration of FA in the rumen fluid might vary depending on the amount and type of tested oil.…”

Section: Diet Composition and Oil Supplementation In Relation To Fa Pmentioning

confidence: 59%

Effect of diets with fruit oils supplements on rumen fermentation parameters, fatty acid composition and methane production <i>in vitro</i>

Cieślak¹,

Váradyová²,

Kišidayová³

et al. 2013

J. Anim. Feed Sci.

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Effect of unsaturated C<sub>18</sub> fatty acids (oleic, linoleic and α-linolenic acids) on ruminal fermentation and production of fatty acids isomers in artificial rumen

Cited by 25 publications

References 27 publications

Effect of sunflower oil supplementation as unsaturated fatty acid source on rumen fermentability and performance of lactating Garut ewes

Effect of sunflower oil supplementation as unsaturated fatty acid source on rumen fermentability and performance of lactating Garut ewes

Dietary supplemental plant oils reduce methanogenesis from anaerobic microbial fermentation in the rumen

Effect of diets with fruit oils supplements on rumen fermentation parameters, fatty acid composition and methane production <i>in vitro</i>

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