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Polyunsaturated fatty acids are less effective to reduce methanogenesis in rumen inoculum from calves exposed to a similar treatment early in life

(2017) JOURNAL OF ANIMAL SCIENCE. 95(10). p.4677-4686
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Abstract
The aim of this study was to evaluate the dose response on in vitro methane (CH4) production of PUFA to which the inoculum donor animals had been exposed early in life. Sixteen Holstein calves (160 +/- 3 and 365 +/- 2 kg BW) at 6 and 12 mo of age were used as inoculum donors. Half of the calves were given increasing amounts of extruded linseed from birth (22 g/d) until 4 mo of age (578 g/d) first mixed with milk and then included in their concentrate. Linseed oil (LSO) was supplemented in vitro at 5 different doses (0, 0.6, 1.2, 2.4, and 4.8 mg/mL). Supplementation of LSO in the rumen inocula at both ages linearly decreased (P < 0.05) the in vitro CH4 production. Total in vitro VFA production was not affected by LSO supplementation. Inhibition of CH4 was smaller when using the rumen inoculum from calves that had received a similar treatment early in life (P < 0.05). Differences in response to in vitro supplementation of a type of fatty acids similar to those applied during early life suggest some "changes" in the functioning of the rumen microbial community.
Keywords
ENTERIC METHANE EMISSIONS, DAIRY-COWS, IN-VITRO, DOCOSAHEXAENOIC ACID, CONDENSED TANNINS, FERMENTATION, METABOLISM, RESISTANCE, LINSEED, CATTLE, early life, methane, microbial adaptation, polyunsaturated fatty acids, retreatment

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Chicago
Ruiz González, Alexis, Sieglinde Debruyne, Jeyamalar Jeyanathan, L Vandaele, S. De Campeneere, and Veerle Fievez. 2017. “Polyunsaturated Fatty Acids Are Less Effective to Reduce Methanogenesis in Rumen Inoculum from Calves Exposed to a Similar Treatment Early in Life.” Journal of Animal Science 95 (10): 4677–4686.
APA
Ruiz González, A., Debruyne, S., Jeyanathan, J., Vandaele, L., De Campeneere, S., & Fievez, V. (2017). Polyunsaturated fatty acids are less effective to reduce methanogenesis in rumen inoculum from calves exposed to a similar treatment early in life. JOURNAL OF ANIMAL SCIENCE, 95(10), 4677–4686.
Vancouver
1.
Ruiz González A, Debruyne S, Jeyanathan J, Vandaele L, De Campeneere S, Fievez V. Polyunsaturated fatty acids are less effective to reduce methanogenesis in rumen inoculum from calves exposed to a similar treatment early in life. JOURNAL OF ANIMAL SCIENCE. 2017;95(10):4677–86.
MLA
Ruiz González, Alexis, Sieglinde Debruyne, Jeyamalar Jeyanathan, et al. “Polyunsaturated Fatty Acids Are Less Effective to Reduce Methanogenesis in Rumen Inoculum from Calves Exposed to a Similar Treatment Early in Life.” JOURNAL OF ANIMAL SCIENCE 95.10 (2017): 4677–4686. Print.
@article{8551726,
  abstract     = {The aim of this study was to evaluate the dose response on in vitro methane (CH4) production of PUFA to which the inoculum donor animals had been exposed early in life. Sixteen Holstein calves (160 +/- 3 and 365 +/- 2 kg BW) at 6 and 12 mo of age were used as inoculum donors. Half of the calves were given increasing amounts of extruded linseed from birth (22 g/d) until 4 mo of age (578 g/d) first mixed with milk and then included in their concentrate. Linseed oil (LSO) was supplemented in vitro at 5 different doses (0, 0.6, 1.2, 2.4, and 4.8 mg/mL). Supplementation of LSO in the rumen inocula at both ages linearly decreased (P {\textlangle} 0.05) the in vitro CH4 production. Total in vitro VFA production was not affected by LSO supplementation. Inhibition of CH4 was smaller when using the rumen inoculum from calves that had received a similar treatment early in life (P {\textlangle} 0.05). Differences in response to in vitro supplementation of a type of fatty acids similar to those applied during early life suggest some {\textacutedbl}changes{\textacutedbl} in the functioning of the rumen microbial community.},
  author       = {Ruiz Gonz{\'a}lez, Alexis and Debruyne, Sieglinde and Jeyanathan, Jeyamalar and Vandaele, L and De Campeneere, S. and Fievez, Veerle},
  issn         = {0021-8812},
  journal      = {JOURNAL OF ANIMAL SCIENCE},
  keyword      = {ENTERIC METHANE EMISSIONS,DAIRY-COWS,IN-VITRO,DOCOSAHEXAENOIC ACID,CONDENSED TANNINS,FERMENTATION,METABOLISM,RESISTANCE,LINSEED,CATTLE,early life,methane,microbial adaptation,polyunsaturated fatty acids,retreatment},
  language     = {eng},
  number       = {10},
  pages        = {4677--4686},
  title        = {Polyunsaturated fatty acids are less effective to reduce methanogenesis in rumen inoculum from calves exposed to a similar treatment early in life},
  url          = {http://dx.doi.org/10.2527/jas2017.1558},
  volume       = {95},
  year         = {2017},
}

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