Forbs and Browse Species

Belesky, D. P.; Walker, John W.; Cassida, K. A.; Muir, James P.

doi:10.1002/9781119436669.ch19

Cited by 4 publications

(2 citation statements)

References 96 publications

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“…The three greatest threat to native grassland are agriculture, fragmentation and invasion of non-native species (Gibson, 2009). Thus, it is crucial to optimize the use of resources and knowledges, like those informed by Kassahun et al (2008), Smith et al (2010a), Tälle et al (2016), Dubeux Jr. et al (2017, Al-bukhari et al (2018), Muir et al (2018), Koncz et al (2020), and Belesky et al (2020) in order to harmonize rangeland utilization and biodiversity conservation.…”

Section: Introductionmentioning

confidence: 99%

Reproductive traits in four spontaneous Pappophorum vaginatum populations in arid Argentina

Entio¹,

Mujica²,

Busso

et al. 2021

Acta Oecologica

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Section: Introductionmentioning

confidence: 99%

Reproductive traits in four spontaneous Pappophorum vaginatum populations in arid Argentina

Entio¹,

Mujica²,

Busso

et al. 2021

Acta Oecologica

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“…Brassica crops (Brassica spp. ), mainly kale (B. oleracea), rape (B. napus), turnip (B. campestris) and swede (B. napus), are increasingly grown for their high feeding values (Barry, 2013;Castillo-Umaña et al, 2020) and high dry matter (DM) yields (Belesky et al 2007;de Ruiter et al, 2009). Some brassica crops were reported to result in low methane emissions when fed to ruminants (Sun et al, 2016).…”

mentioning

confidence: 99%

Animal, feed and rumen fermentation attributes associated with methane emissions from sheep fed brassica crops

Sun

You³

2020

Animal Physiology Nutrition

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Methane emissions from ruminants enhance global warming and lead to a loss of feed energy. The emissions are low when fed brassica crops, but the factors contributing to low emissions are unknown. A meta‐analysis was conducted with individual animal data collected from seven experiments. In these experiments, methane emissions were measured using respiration chambers. Animal characteristics, feed chemical composition and rumen fermentation parameters were included for the analysis using multiple regression models. Feed intake level, animal live weight and age were animal factors that were weakly and negatively related to methane yield (g/dry matter intake). The duration in which sheep were fed brassica crops was a significant contributor in the model, suggesting that the effect on emissions diminishes with time. Among a range of feed chemical composition characters, acid detergent fibre and hot‐water‐soluble carbohydrate contributed significantly to the model, suggesting that both structural and soluble carbohydrates affect methane formation in the rumen. There was no significant correlation between the concentration of sulphate in brassicas and emissions, but nitrate was moderately and negatively correlated with methane yield (r = −.53). Short‐chain fatty acid profiles in the rumen of animals fed brassicas were different from those fed pasture, but these parameters only moderately correlated to methane emissions (r = .42). Feeding forage rape resulted in low rumen pH. The pH before morning feeding was strongly correlated to methane yield (r = .90). Rumen pH, together with microbial communities mediated by pH, might lead to low emissions. Bacteria known to produce hydrogen were relatively less abundant in the rumen contents of brassica‐fed animals than pasture‐fed animals. In conclusion, animal and feed factors, rumen fermentation and microbial communities all affect methane emissions to some extent. The interactions of these factors with each other thus contribute to methane emissions from brassica‐fed sheep.

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Seasonal patterns of forage quality in six native forb species

Vera-Velez

Lamb

2022

Can. J. Plant Sci.

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The forage value of native forbs is rarely considered in pasture mixtures, even though such species can make up a substantial proportion of the diet of cattle on native rangelands. Incorporating non-leguminous forbs into pasture grazing systems can provide additional ecosystem services such as pollination habitat, and ideally those forbs would also provide some forage value. We therefore assessed the seasonal variation in protein and fiber (NDF and ADF) content of six common Western Canadian native forb and sub-shrub species: yarrow (Achillea millefolium), smooth aster (Symphyotricum laeve), prairie crocus (Pulsatilla patens), prairie rose (Rosa arkansana), Canada goldenrod (Solidago canadensis), and American vetch (Vicia americana). The legume V. americana displayed the highest protein followed by S. canadensis and S. laeve. V. americana also has the highest fiber concentration through the growing season. S. canadensis and S. laeve had lower fiber content; thus, making them a good choice for addition in seed mixes to meet the energy and nutrient requirements of cattle. Forb protein and fiber content showed opposite trends during the growing season. Crude protein decreased while NDF and ADF increased as a general pattern tied to physiological stage and degree of senescence. The promising nutritional profile of some forb species suggests that these species should be considered in pasture mixes.

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Forbs and Browse Species

Cited by 4 publications

References 96 publications

Reproductive traits in four spontaneous Pappophorum vaginatum populations in arid Argentina

Reproductive traits in four spontaneous Pappophorum vaginatum populations in arid Argentina

Animal, feed and rumen fermentation attributes associated with methane emissions from sheep fed brassica crops

Seasonal patterns of forage quality in six native forb species

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