Willow (Salix sp.) as a supplement for grazing cattle under drought conditions

Moore, K. M.; Barry, T. N.; Cameron, P.N.; López‐Villalobos, N.; Cameron, D.J.

doi:10.1016/s0377-8401(02)00326-7

Cited by 36 publications

(23 citation statements)

References 8 publications

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“…could therefore assist in the move from intensive to more extensive feeding systems in temperate countries, not only by improving the efficiency of nutrient utilisation but also by reducing the need for anthelmintics. 12,102,223 …”

Section: Methane Emissions From Ruminantsmentioning

confidence: 99%

Unravelling the conundrum of tannins in animal nutrition and health

2006

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This paper examines the nutritional and veterinary effects of tannins on ruminants and makes some comparisons with non-ruminants. Tannin chemistry per se is not covered and readers are referred to several excellent reviews instead: (a) Okuda T et al. Heterocycles 30:1195-1218 (1990); (b) Ferreira D and Slade D. Nat Prod Rep 19:517-541 (2002); (c) Yoshida T et al. In Studies in Natural Product Chemistry. Elsevier Science, Amsterdam, pp. 395-453 (2000); (d) Khanbabaee K and van Ree T. Nat Prod Rep 18:641-649 (2001); (e) Okuda et al. Phytochemistry 55:513-529 (2000). The effects of tannins on rumen micro-organisms are also not reviewed, as these have been addressed by others: (a) McSweeney CS et al. Anim Feed Sci Technol 91:83-93 (2001); (b) Smith AH and Mackie RI. Appl Environ Microbiol 70:1104-1115 (2004). This paper deals first with the nutritional effects of tannins in animal feeds, their qualitative and quantitative diversity, and the implications of tannin-protein complexation. It then summarises the known physiological and harmful effects and discusses the equivocal evidence of the bioavailability of tannins. Issues concerning tannin metabolism and systemic effects are also considered.Opportunities are presented on how to treat feeds with high tannin contents, and some lesser-known but successful feeding strategies are highlighted. Recent research has explored the use of tannins for preventing animal deaths from bloat, for reducing intestinal parasites and for lowering gaseous ammonia and methane emissions. Finally, several tannin assays and a hypothesis are discussed that merit further investigation in order to assess their suitability for predicting animal responses. The aim is to provoke discussion and spur readers into new approaches. An attempt is made to synthesise the emerging information for relating tannin structures with their activities. Although many plants with high levels of tannins produce negative effects and require treatments, others are very useful animal feeds. Our ability to predict whether tannin-containing feeds confer positive or negative effects will depend on interdisciplinary research between animal nutritionists and plant chemists. The elucidation of tannin structure-activity relationships presents exciting opportunities for future feeding strategies that will benefit ruminants and the environment within the contexts of extensive, semi-intensive and some intensive agricultural systems.

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Section: Methane Emissions From Ruminantsmentioning

confidence: 99%

Unravelling the conundrum of tannins in animal nutrition and health

2006

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“…Further distinction may include differences due to the animal species and breeds, the trees and shrubs species and cultivars, the pasture plants and other vegetation components, the soil, the climate, the land-use patterns and the planting arrangements (Calub 2003;Papanastasis et al 2008). Considering ruminants, goats (Papachristou and Papanastasis 1994;Hove et al 2001;Bestman et al 2014), sheep (Pitta et al 2005;Rangel and Gardiner 2009) and cattle (Moore et al 2003;Vandermeulen et al 2016) are reported as being managed with shrub and tree fodder.…”

Section: Agroforestry and Silvopastoralism: Concepts And Definitionsmentioning

confidence: 99%

Agroforestry for ruminants: a review of trees and shrubs as fodder in silvopastoral temperate and tropical production systems

et al. 2018

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Among the oldest agroforestry systems, silvopastoralism uses shrubs and trees to feed ruminants. The practice is common in extensive livestock production systems, whereas the intensification of grass-based systems in the past century has led to the removal of woody species from agricultural temperate landscapes. In Europe however, woody species are promoted again on grasslands through environment-friendly policies due to the ecosystem services they provide such as carbon sequestration, control of soil erosion, limitation of airborne pollutants and biodiversity conservation. Positive effects of browse on rumen digestion and parasite control have also been documented across different plant species and regions. Under optimal conditions, feeding ruminants from woody fodder sustains animal production. Nonetheless, limitations can restrict the use of woody forage into animal diets, such as the presence of anti-nutritive and toxic compounds. The incorporation of this resource in ruminant feeding systems raises the question of the management of the interface between the plant and the animal. Various management systems are practiced. Temperate species such as Salix spp. and Populus spp. are fed to sheep and cattle in fodder blocks or by pruning trees in New Zealand, and Fraxinus spp. or Corylus avellana in hedgerows supply forage to livestock in Belgium, whereas Leucaena leucocepahala and Desmanthus spp. browsing is common in Australia. Nowadays, ensiling and pelleting techniques are being developed as a way to store browse forage. As the renewed interest in using shrubs and trees to feed ruminants is recent, especially in temperate regions, additional research about the optimal introduction of this resource within systems is needed.

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“…These were leaves-Acacia brevispica, A. nilotica, A. tortillis, Salix caprea and S. viminalis fed to sheep, goats and cattle [38,44,45,114,121,131,134,140], C. calothyrsus, Onobrychis viciifolia fed to goats, lambs and cattle [68,108,151,221] carob (Ceratonia siliqua), Lespedeza cuneata, Prosopis cineraria, Quercus semecarpifolia given to goats [30,188], Desmodium ovalifolium, Dorycnium rectum, Hedysarum coronarium, Lotus corniculatus, L. pedunculatus fed to sheep [13,122,150,201,210] and Leucaena leucocephala given to ruminants [72,118]. The fruits-Acacia tortillis, Dichrostachys cinerea given to goats [105,128], honey locust (Gleditsia triacanthos) avidly eaten by sheep [31] and acorns of Quercus rotundifolia, found to be excellent for Mediterranean pigs and ruminants [34], were also used for animal feeding.…”

Section: Importance Of Tanniniferous Feeds and Foragesmentioning

confidence: 99%

Value Addition of Feed and Fodder by Alleviating the Antinutritional Effects of Tannins

et al. 2013

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Tannins are one of the important plant secondary metabolites having wide prevalence in the plant kingdom. They are a prominent constituent of various types of feed, fodder and agro-industrial wastes. The intake of tannins at a low level has recently been found to have some positive effects in ruminants. However, the use of tannin-rich biomass as animal feed, having high content of tannins, is limited by the antinutritional effects of tannins at this level in an animal system. A number of physical, chemical, biological and miscellaneous approaches have been developed for inactivation or removal of tannins for enhancement of the feeding value of tannin-rich biomass. However, none of the individual method is successful in total inactivation or removal of tannins without loss of nutritive value, and this limits the utilization of a vast amount of plant resource. A cohesive and an integrated detanninification strategy is required for alleviating the antinutritional effects of tannins in animals and upgrading the feeding value of tanniniferous biomass.

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Willow (Salix sp.) as a supplement for grazing cattle under drought conditions

Cited by 36 publications

References 8 publications

Unravelling the conundrum of tannins in animal nutrition and health

Unravelling the conundrum of tannins in animal nutrition and health

Agroforestry for ruminants: a review of trees and shrubs as fodder in silvopastoral temperate and tropical production systems

Value Addition of Feed and Fodder by Alleviating the Antinutritional Effects of Tannins

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