Estimating swath-grazed carrying capacity from plot-scale data

DoceRaquel, R; Baron, Vern S.; Campbell, D. K.

doi:10.4141/cjps-2014-353

Cited by 5 publications

(9 citation statements)

References 6 publications

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“…For example, the whole‐plant yield declined linearly with planting delay for barley but for oat ( Avena sativa L.) and triticale, it increased when planting was delayed from late May to early June (Baron et al, 2012). To resolve this problem, a spreadsheet calculator was developed to estimate farm‐scale carrying capacities for swath grazing beef cows based on forage yield and quality data from small areas within fields or paddocks (Doce et al, 2015). Additionally, forage guides have been developed for Canadian and other producers in cold climates to extend the grazing season (e.g., GSKCA, 2018; Hutton et al, 2016).…”

Section: Impacts Of Integrated Crop–livestock Systems On Crop Productmentioning

confidence: 99%

Facilitating Crop–Livestock Reintegration in the Northern Great Plains

et al. 2019

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Integrated crop–livestock systems (ICLSs) can help increase food production while benefiting soils and the environment. This review summarizes recent impacts of ICLSs on crop and livestock production and rural economics and discusses lessons learned in the northern Great Plains (NGP). Research on ICLS conducted in the NGP indicates that the crop residue grazing, swath grazing, and annual forage grazing can positively influence crop production; whereas, livestock performance varies with season, forage nutritive value, and grazing management. Furthermore, ICLSs can reduce the costs and risks of agricultural production. The success of ICLSs in NGP region depends on trade‐offs, planning, economic benefits, policies, regulations, community acceptance, and management skills. The ICLSs could play a strategic role in future agricultural production. The lessons learned from adopting ICLSs in the NGP include the lack of available land for fertilizer (manure) management, that to implement ICLS practices skills and knowledge must be maintained, and ICLS provides an entry point for young farmers and ranchers however capital is needed. These experiences and lessons could be valuable references for producers to adopt ICLSs in the NGP or other regions. Core Ideas Integrated crop–livestock systems positively affect crop production by improving soil health. Common integrated crop–livestock system management techniques can enhance the northern Great Plains crop production. Integrated crop–livestock system livestock performance is impacted by season, forage selection, and management. Integrated crop–livestock systems can increase economic benefits and reduce economic risks. Experiences and lessons in the northern Great Plains could be valuable for other regions to adopt integrated crop–livestock systems.

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Section: Impacts Of Integrated Crop–livestock Systems On Crop Productmentioning

confidence: 99%

Facilitating Crop–Livestock Reintegration in the Northern Great Plains

et al. 2019

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“…From 2014 to 2018, this line was tested in multilocation replicated plots as well as disease nurseries. In , 2015 was tested alongside sister lines, other breeding lines, and checks in replicated multisite field tests throughout Alberta. In 2016, J07046021 was tested in advanced yield tests across western Canada.…”

Section: Line Evaluationmentioning

confidence: 99%

“…In 2017 and 2018, J07046021 was grown alongside commonly grown commercial cultivars. Locations included: in Alberta, Calmar (2014Calmar ( , 2015Calmar ( , 2016Calmar ( , 2017, Morrin (2015Morrin ( , 2016Morrin ( , 2017, Lacombe (High fertility [2016,2017,2018]), Lacombe (low fertility [2014,2015,2016]), Lacombe (second date of seeding [2016]), Trochu (2014, 2015, 2016), Olds (2014, 2015, 2016, Lethbridge (dryland [2015Lethbridge (dryland [ , 2016), Lethbridge (irrigated [2015Lethbridge (irrigated [ , 2016), Beaverlodge (2016) and Vegreville (2018); in Saskatchewan, Saskatoon (2016);and in Manitoba, Brandon (2016). The high-fertility site at Lacombe was planted into alfalfa (Medicago sativa L.) plowdown, which had >90 kg ha −1 of actual N, while the low-fertility site followed a cereal crop, which had between 40 and 50 kg ha −1 of actual N. The second date of seeding site was planted 2-3 wk after the other sites.…”

Section: Line Evaluationmentioning

confidence: 99%

Registration of ‘AB Wrangler’, a two‐rowed feed and forage barley with enhanced resistance to Fusarium head blight

Juskiw

Kabeta

Nyachiro

et al. 2021

J of Plant Registrations

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The mycotoxin deoxynivalenol (DON) produced by Fusarium head blight (FHB) can reduce feed efficiencies. New barley (Hordeum vulgare L.) cultivars with improved resistance to FHB that still provide producers with high yield are desired. 'AB Wrangler' (Reg. no. CV-372, PI 695086; CFIA Reg. no. 8911; Canadian PBR Appl. no. 19-10051) is a two-rowed, hulled, spring barley developed for feed and forage use. AB Wrangler has enhanced resistance to FHB in testing across Canada and the United States. In Canada, this line accumulated 50% less DON than the feed checks 'CDC Austenson' and 'Champion'. Its DON levels were similar to the most resistant check 'Chevron' in the North American Barley Scab Evaluation Nursery. In the Western Cooperative Two-row Barley Registration Tests, AB Wrangler outyielded the feed check CDC Austenson. In the Western Cooperative Forage Barley Registration Tests (FCoop), it had biomass yields similar to the highest yielding forage check 'CDC Cowboy' while its biomass quality was better than CDC Cowboy. It is a medium height cultivar with lodging resistance similar to the better checks in the FCoop. AB Wrangler has earlier maturity than CDC Austenson, similar to Champion. AB Wrangler was rated as resistant to stem rust and moderately resistant to spot blotch, the surface-borne smuts, and FHB. AB Wrangler combines good agronomic, disease, and feed-forage attributes that will make it suitable for dry-land production on the northern Great Plains.

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“…Acid detergent fiber is deemed to be an acceptable predictor of beef cattle performance (NASEM 2016). In an earlier study, it was found to provide more precise estimates of swath grazing CC predicted from plot data than IVTD when used as the independent variable (Doce, Baron, & Dick, 2015). However, selection for other correlated values such as IVTD and NDFD (Mertens, 2007) derived from in vitro assays should accomplish improvements in nutritive value of barley forage.…”

Section: Improving the Forage Accumulation-nutritive Value Relationshipmentioning

confidence: 99%

Breeding strategies in evaluation of forage barley

et al. 2021

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Producers on the Canadian Prairies grow barley (Hordeum vulgare L.) as a forage crop for ruminants, especially cattle. The purpose of our study was to determine methods to improve our selection of barley lines with superior forage value for ruminants. Data from the Western Cooperative Forage Barley Registration Test were used with permission of the Prairie Recommending Committee for Oat and Barley (PRCOB) and the breeders. Data were analyzed from 20 environments collected from 3 yr (2012–2014) and seven sites. We measured forage accumulation (FA) at the soft dough stage, five nutritive value traits, and three derived cow–calf variables. Although the variation in FA and forage nutritive value traits attributed to environment (E) was large, significant genotypic (G) effects were found for all traits measured. Whereas G× E effects were also significant, the mean square effect for G was up to 40 times higher than the mean squares for G×E. The proportion of variance attributed to G was greater for nutritive value traits than for FA. Significance of G means there was variability in the germplasm tested, and improvement through selection should be possible. The two parametric methods of stability analyses (Francis–Kannenberg method and Eberhart–Russell method) often identified the same lines as superior. Lines that were superior for FA and carrying capacity (cow on swath grazing, CC) were often different from those identified as superior for nutritive value, empty body weight gain (cow, EBWG) and average daily gain (backgrounding calf, ADG). A nonparametric method used to determine dynamic stability (Nassar–Hühn method) identified different lines as superior from the parametric methods. Breeders can use a combination of these selection criteria in breeding forage barley varieties with enhanced forage value for ruminants.

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Estimating swath-grazed carrying capacity from plot-scale data

Cited by 5 publications

References 6 publications

Facilitating Crop–Livestock Reintegration in the Northern Great Plains

Facilitating Crop–Livestock Reintegration in the Northern Great Plains

Registration of ‘AB Wrangler’, a two‐rowed feed and forage barley with enhanced resistance to Fusarium head blight

Breeding strategies in evaluation of forage barley

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