Diets enriched in unsaturated fatty acids enhance early embryonic development in lactating Holstein cows

Thangavelu, Govindarajan; Colazo, M.G.; Ambrose, D.J.; Oba, M.; Okine, E. K.; Dyck, Michael K.

doi:10.1016/j.theriogenology.2007.07.002

Cited by 100 publications

(74 citation statements)

References 32 publications

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“…Milk yield and milk composition were not significantly affected by treatments (Table 4 and 6), confirming results found by other studies (Abel-Caines et al, 1998;Kelly et al, 1998;Thangavelu et al, 2007) that did not reveal any changes in productivity in cows fed with different fat sources.…”

Section: Milk Yield and Composition And Parameters Related To Cheesemsupporting

confidence: 88%

“…According to previous studies (Kelly et al, 1998;Dhiman et al, 1999;Petit, 2002;Ponter et al, 2006;Thangavelu et al, 2007), feeding a supplement of UFA and, in particular, rich in oleic, linoleic and linolenic acids lead to an increase in UFA in milk. In our study the milk FA profile was also influenced by the use of cracked and toasted soybean seeds as a partial source of fat in the E-diet; the natural protection of seeds and heat treatment could be adequate to prevent a rapid release of oil and thus biohydrogenation of long-chain fatty acids (Abel-Caines et al, 1998;Petit, 2002;Petit, 2003;Bailoni et al, Table 7.…”

Section: Milk Fatty Acid Profilementioning

confidence: 95%

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Effect of unsaturated fatty acid supplementation on performance and milk fatty acid profile in dairy cows fed a high fibre diet

Marchesini

Andrighetto

Stefani

et al. 2009

Italian Journal of Animal Science

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The influence of unsaturated fatty acid (UFA) supplement on productive performance, physiochemical properties and fatty acid (FA) profile of milk, was investigated in lactating dairy cows fed with high fibre diets. According to a cross-over design, twelve cows were assigned to two experimental settings characterized by different FA profiles. Cows received a high fibre diet (~42% NDF on DM basis) supplemented with soybean based mixtures with these FA compositions: 92.0% of saturated FA (SFA), 2.8% of monounsaturated FA (MUFA) and 5.2% of polyunsaturated FA (PUFA) in the control diet (C-diet); 19.1% of SFA, 20.9% of MUFA and 60.0% of PUFA in the experimental diet (E-diet). The E-diet did not affect dry matter intake nor milk yield. Milk composition and coagulation traits resulted similar between treatments, except for the lactose level, which was lower in the E-diet (5.0 vs 4.8%; P<0.05) and the freezing point (-0.546 vs -0.535 °C; P<0.05). As respects the milk FA profile, the E-diet significantly increased the percentage of UFA because of their greater amount in the ration; however the "transfer" of UFA in milk was limited by the high level of FA biohydrogenation (BH) at the ruminal level. UFA showed low values of carry over in milk (67.5 vs 39.7%; P<0.001) due to the saturation process; on the contrary SFA had a threefold increment (124 vs 323%; P<0.001), mostly due to a peak in the production of stearic acid. In this study, the percentage of CLA in milk (0.50 vs 0.62%; P<0.05) was quite low for both diets, if compared with other studies, and this was probably due to a low vaccenic acid supply at duodenal level. E-diet (5,00 vs 4,81%; P<0,05), e del punto crioscopico (-0,546 vs -0,535 °C; P<0,05

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Section: Milk Yield and Composition And Parameters Related To Cheesemsupporting

confidence: 88%

Section: Milk Fatty Acid Profilementioning

confidence: 95%

Effect of unsaturated fatty acid supplementation on performance and milk fatty acid profile in dairy cows fed a high fibre diet

Marchesini

Andrighetto

Stefani

et al. 2009

Italian Journal of Animal Science

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“…Observations recorded for embryo quality at five (Cerri et al, , 2009) and seven (Thangavelu et al, 2007) days after insemination, and for embryo survival (Petit and Twagiramungu, 2006) and conception rate to first insemination (Juchem et al, , 2010 support the finding that, for the oocyte and early embryo, some fatty acids among the polyunsaturates, in particular linolenic, are superior to others.…”

Section: Introductionsupporting

confidence: 59%

“…In that scenario it was argued that the causal mechanism was the reduction in plasma progesterone concentrations that accompanies high levels of feeding in the ewe (McEvoy et al, 1995). Although progesterone concentrations were not measured in the present study it is unlikely that the fish oil would have reduced them since all the evidence, albeit mostly from dairy cattle studies Bilby et al, 2006;Petit and Twagiramungu, 2006;Thangavelu et al, 2007) but also supported by sheep data (Kuran et al, 1999), indicates that supplementary dietary lipids elevate progesterone. In the Kuran et al (1999) study referred to just now, we found that dietary lipid was associated with significantly enhanced progesterone synthesis in primary explants of ovine luteal tissue in vitro.…”

Section: Discussionmentioning

confidence: 56%

Impact of contrasting fish oil concentrations in the diet on ovine embryo development <i>in vivo</i> and of corresponding diet-specific derivative sera during <i>in vitro</i> culture

McEvoy¹,

Önal²,

Speake³

et al. 2012

J. Anim. Feed Sci.

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In the first of two experiments, numbers of ovulations and day 5 embryo yields were unaffected by fish oil (0, 3 or 6% w/w) in ewe diets; oestradiol concentrations and numbers of large ovarian follicles were increased. Fish oil tended to suppress embryo development and limit blastocyst diameter and cell number but not protein synthesis. In the second experiment IVF-derived embryos were cultured in medium supplemented with foetal calf serum (FCS) or, as in vitro equivalents to Experiment 1, serum from ewes fed rations supplemented with 0 (C), 3 (3F) or 6 (6F)% fish oil. Cleavage rates were not affected by serum source. More Grade 1 to 1.5 blastocysts were produced when using 3F serum (32% of blastocysts) than with C (27%; ns) or 6F (16%; P<0.05) or FCS (10%; P<0.005). It is suggested that at less than 3% inclusion in the diet of ewes, there may be beneficial effects of fish oil fatty acids on embryo production in vivo and of the corresponding ewe serum during in vitro culture. Higher concentrations are counter-productive.

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“…Nevertheless, results from feeding linseeds on reproductive variables are inconsistent. Some authors reported an improved increased follicular and corpus luteum growth , oocyte (Moallem et al, 2013;Zachut et al, 2010) and embryo quality (Thangavelu et al, 2007), decreased pregnancy loss (Ambrose et al, 2006), reduced plasma prostaglandin (Petit et al, 2002), and increased serum progesterone concentration (Jahani-Moghadam et al, 2015), reduced interval from calving to ovulation (Colazo et al, 2009). In contrast, others noted no changes in milk progesterone concentration or corpus luteum activity (Ponter et al, 2006), or oocyte quality (Bilby et al, 2006, Fouladi-Nashta et al, 2009.…”

Section: Linseed a Provider Of Omega-3 For Ruminantsmentioning

confidence: 99%

Linseed: a valuable feedstuff for ruminants

Doreau

Ferlay

2015

OCL

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-Linseeds are used in ruminant feeding for a long time, but this feedstuff knows now increasing interest. Linseeds are rich in alpha-linolenic acid, a fatty acid from the omega-3 series. Despite an extensive biohydrogenation of dietary alpha-linolenic acid in the rumen, its concentration in milk and beef meat increases with linseed incorporation in diets; this increase is accompanied by that of other fatty acids produced during biohydrogenation, especially conjugated linoleic acids and trans 18:1 fatty acids. The increase in cow fertility due to omega-3 fatty acids has not been demonstrated. Furthermore, linseed incorporation in ruminant diets is one of the most efficient ways to decrease enteric methane emissions. In addition to a global mitigating effect of all lipid sources on methane, linseeds have a specific effect due to changes in rumen microbial ecosystem. The practical use of linseeds in ruminant feeding at a large scale requires the absence of negative effect at any step of the ruminant production system. An excessive supply of lipids from linseeds can have deleterious effects on digestive efficiency, milk fat and protein content, beef susceptibility to oxidation, milk and beef fatty acid composition, but when linseed incorporation in the diet does not exceed ca. 3% of additional fat, only positive effects are remaining. A challenge is the increase in linseed cropping to meet increased needs for animal feeding.Keywords: Linseed / milk / beef / omega-3 fatty acids / methane Résumé -La graine de lin : un aliment de choix pour les ruminants. La graine de lin est utilisée depuis longtemps dans l'alimentation des ruminants, mais son emploi suscite un regain d'intérêt. Le lin est en effet riche en acide alpha-linolénique, un acide gras de la série des oméga 3. En dépit d'une biohydrogénation poussée dans le rumen, sa concentration dans le lait et la viande bovine est accrue lorsque la ration est enrichie en graines de lin ; cet accroissement va de pair avec celui d'autres acides gras intermédiaires de la biohydrogénation comme les acides gras monoinsaturés trans et les acides linoléiques conjugués. L'amélioration de la fertilité des vaches liée à cet apport d'oméga 3 n'a pas été démontrée. Par ailleurs, l'incorporation de lin dans la ration des ruminants est un des moyens efficaces pour réduire l'émission de méthane entérique. Outre un effet de toutes les sources de lipides pour réduire le méthane, le lin a un effet spécifique lié à son action sur le microbiote ruminal. L'utilisation de la graine de lin à grande échelle dans l'alimentation des bovins nécessite qu'il n'ait pas d'effet négatif à quelque niveau du système de production. Un apport excessif de lipides du lin peut diminuer la digestibilité de la ration, les taux butyreux et protéique du lait, modifier sensiblement la composition en acides gras du lait et de la viande, et augmenter la susceptibilité à l'oxydation des produits. Toutefois, lorsque l'incorporation de lipides du lin ne dépasse pas 3 % environ de la ration, seuls les effets pos...

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Diets enriched in unsaturated fatty acids enhance early embryonic development in lactating Holstein cows

Cited by 100 publications

References 32 publications

Effect of unsaturated fatty acid supplementation on performance and milk fatty acid profile in dairy cows fed a high fibre diet

Effect of unsaturated fatty acid supplementation on performance and milk fatty acid profile in dairy cows fed a high fibre diet

Impact of contrasting fish oil concentrations in the diet on ovine embryo development <i>in vivo</i> and of corresponding diet-specific derivative sera during <i>in vitro</i> culture

Linseed: a valuable feedstuff for ruminants

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