Pasture and sheep performance response to sod-seeding red clover (Trifolium pratense L.) or white clover (Trifolium repens L.) into naturalized pastures in eastern Canada

Graves, M.E.; McLean, Nancy; Jones, G. B.

doi:10.1016/j.anifeedsci.2012.06.006

Cited by 13 publications

(11 citation statements)

References 35 publications

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“…In addition, replacing grass silage with red clover silage can lead to desirable changes in milk fatty acid composition (Dewhurst et al 2003, Bertilsson and Murphy 2003, Vanhatalo et al 2006, Vanhatalo et al 2007. Red clover diets promote growth and increase live weight gain in ewes and in lambs (Fraser et al 2004, Moorby et al 2004, Speijers et al 2005, Graves et al 2012.…”

Section: Introductionmentioning

confidence: 99%

Variety, time of harvest and conditions during growing season have impact on red clover isoflavone content

Mustonen¹,

Tuori²,

Kurki

et al. 2018

AFSci

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Red clover (Trifolium pratense L.) is the predominant legume used in northern European agriculture. Official red clover variety trials are conducted by Natural Resources Institute Finland (Luke) to determine the value of field crop varieties. The trials used for the current analysis were conducted in Luke units in southern Finland (Mikkeli) and northern Finland (Ruukki) in two consecutive years. Plant samples for isoflavone analyses were collected from four varieties grown as four replicates and harvested twice during both growing seasons. The four main isoflavones biochanin A, genistein, daidzein and formononetin were analysed using high performance liquid chromatography. Total phytoestrogen content in the varieties varied in the range of 11.2−14.8 mg g-1 dry matter (DM). The variety and the time of harvest had most effect on the isoflavone, especially formononetin, contents of red clover. A more northern growing area and challenging weather conditions were associated with increased isoflavone concentrations.

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Section: Introductionmentioning

confidence: 99%

Variety, time of harvest and conditions during growing season have impact on red clover isoflavone content

Mustonen¹,

Tuori²,

Kurki

et al. 2018

AFSci

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“…Red clover diets with high CP were shown to promote growth and increase live-weight gain , and it has also been suggested that formononetin content in red clover can increase growth of lambs (Moorby et al, 2004). Red clover pastures promote weight gain in ewes and lambs compared with control feeds (Speijers et al, 2005;Graves et al, 2012). High CP intake in red clover leads to significantly higher plasma urea concentrations.…”

Section: Discussionmentioning

confidence: 99%

Fertility and growth of nulliparous ewes after feeding red clover silage with high phyto-oestrogen concentrations

Mustonen

Taponen

Andersson

et al. 2014

Animal

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The study aimed to determine the effects of red clover (Trifolium pratense) silage with high phyto-oestrogen content on ewe performance during their first breeding season. Red clover silage containing formononetin, biochanin A, genistein, and daidzein was fed to 10 nulliparous ewes of the prolific Finnish Landrace breed before, during and after the breeding season, for a total of 5 months. A control group of 10 ewes was fed with grass silage. The mean numbers of foetuses per pregnancy were 2.1 ± 0.7 and 2.2 ± 0.8 for the red clover and control groups, respectively. The total mass of the uterus with its contents was significantly greater in ewes of the red clover group compared with those of the control group. This difference was mainly explained by the greater volume of foetal fluids. Serum progesterone concentration in the red clover group was significantly lower over the entire period analysed than in the control group. In conclusion, the fecundity of the ewes was not reduced by red clover feed with high phyto-oestrogen concentrations. The volume of foetal fluids increased that could increase the risk for vaginal prolapse before the term.Keywords: ewe, red clover, phyto-oestrogen, formononetin, equol ImplicationsThe symbiotic rhizobia bacteria in red clover can fix atmospheric nitrogen, which promotes the growth of red clover itself and subsequent crops. This ability makes red clover valuable crops, especially in organic agriculture. Red clover is also a valuable ruminant feed, for example, lambs fed with red clover grow very well. Red clover is a rich source of polyphenols such as isoflavones, also referred to as phyto-oestrogens. Phyto-oestrogens can cause infertility problems in animals. As organic farming and the use of red clover is ever increasing, it is important to study what effect red clover feeding has on ewes' reproduction.

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“…In general, voluntary intake of legume forage is 10% to 15% greater than grasses of similar digestibility [56]; this is probably because, in an equivalent phenological state, legumes have a lower resistance to chewing, a faster rate of digestion, and a faster rate of rumen particles, which in turn reduces rumen filling [87]. The inclusion of legumes (red clover and alfalfa) has the potential to improve the quality of the diet of sheep [88], increasing daily gain [29,89], and some legumes, such as lotus, even reduced the total nematode parasite intensities compared to lambs grazing on ryegrass/white clover swards [42,86,90]. Fraser et al [29] evaluated the performance of lambs fed with clover, alfalfa, or ryegrass.…”

Section: Dietmentioning

confidence: 99%

Lamb Fattening Under Intensive Pasture-Based Systems: A Review

Fernandez-Turren

Repetto

Arroyo

et al. 2020

Animals

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The benefits of pasture-based systems on the fatty acid composition of sheep meat appear to be achievable despite variability in the quality of the pastures. Lambs fed high levels of temperate pastures have an excess of N-ammonia derived from protein degradation. Furthermore, animal performance is highly variable depending on the quality of the pasture at the time of grazing, and high animal performance in these systems appears to be linked to the use of high-quality pastures with high availability, and is possibly added to by the inclusion of concentrates that allow increasing energy intake and a better use of the N in the pasture. The combination of high-quality pastures and total mixed ration offers a good alternative to the inclusion of concentrates in the diet, improving the use of N, and avoiding acidosis problems. However, information to determine the effect of a number of nutritional strategies on meat quality, and the minimum level of pasture intake necessary to achieve the benefits of pastoral systems is still lacking.

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Pasture and sheep performance response to sod-seeding red clover (Trifolium pratense L.) or white clover (Trifolium repens L.) into naturalized pastures in eastern Canada

Cited by 13 publications

References 35 publications

Variety, time of harvest and conditions during growing season have impact on red clover isoflavone content

Variety, time of harvest and conditions during growing season have impact on red clover isoflavone content

Fertility and growth of nulliparous ewes after feeding red clover silage with high phyto-oestrogen concentrations

Lamb Fattening Under Intensive Pasture-Based Systems: A Review

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