Evaluation of Barley Silage with Varying Ruminal In Vitro Fiber Digestibility on Lactation Performance and Chewing Activity of Lactating Dairy Cows in Comparison with Corn Silage

Refat, Basim; Christensen, David A.; McKinnon, J. J.; Prates, Luciana L.; Nair, Jayakrishnan; Beattie, Aaron D.; Yang, Wenzhu; McAllister, Tim A.; Yu, Peiqiang

doi:10.1139/cjas-2016-0191

Cited by 2 publications

(3 citation statements)

References 31 publications

(46 reference statements)

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“…All forages were grown on a nonirrigated land at the University of Saskatchewan. Seeding, harvest, and ensiling management were as described before. , …”

Section: Methodsmentioning

confidence: 99%

“…Seeding, harvest, and ensiling management were as described before. 17,18 Two representative samples from each silage variety were taken at two different dates (expected chemical and nutrient changes within increasing ensiling time), such that each silage was represented by two replicates. Each sample was used for (1) chemical profile analysis, (2) indigestible NDF (iNDF) analysis, (3) rumen degradation using in situ technique, and (4) molecular structure study.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

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Physiochemical Characteristics and Molecular Structures for Digestible Carbohydrates of Silages

Refat

Prates

Khan

et al. 2017

J. Agric. Food Chem.

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The main objectives of this study were (1) to assess the magnitude of differences among new barley silage varieties (BS) selected for varying rates of in vitro neutral detergent fiber (NDF) digestibility (ivNDFD; Cowboy BS with higher ivNDFD, Copeland BS with intermediate ivNDFD, and Xena BS with lower ivNDFD) with regard to their carbohydrate (CHO) molecular makeup, CHO chemical fractions, and rumen degradability in dairy cows in comparison with a new corn silage hybrid (Pioneer 7213R) and (2) to quantify the strength and pattern of association between the molecular structures and digestibility of carbohydrates. The carbohydrate-related molecular structure spectral data was measured using advanced vibrational molecular spectroscopy (FT/IR). In comparison to BS, corn silage showed a significantly (P < 0.05) higher level of starch and energy content and higher degradation of dry matter (DM). Cowboy BS had lower feeding value (higher indigestible fiber content and lower starch content) and lower DM degradation in the rumen compared to other BS varieties (P < 0.05). The spectral intensities of carbohydrates were significantly (P < 0.05) correlated with digestible carbohydrate content of the silages. In conclusion, the univariate approach with only one-factor consideration (ivNDFD) might not be a satisfactory method for evaluating and ranking BS quality. FT/IR molecular spectroscopy can be used to evaluate silage quality rapidly, particularly the digestible fiber content.

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“…All forages were grown on a nonirrigated land at the University of Saskatchewan. Seeding, harvest, and ensiling management were as described before. , …”

Section: Methodsmentioning

confidence: 99%

Section: ■ Materials and Methodsmentioning

confidence: 99%

Physiochemical Characteristics and Molecular Structures for Digestible Carbohydrates of Silages

Refat

Prates

Khan

et al. 2017

J. Agric. Food Chem.

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“…Milk samples were analyzed for somatic cells (SCC), total solids, milk urea N, protein (%), lactose (%), and milk fat (%). Calculations for solids-non-fat, fat corrected milk, energy corrected milk, and yields of milk protein, lactose, and fat were performed following previous research of Refat et al, (2017) and Tosta et al, (2019).…”

Section: Milk Samplingmentioning

confidence: 99%

Production performance and metabolic characteristics of cows fed whole plant faba bean silage in comparison with barley and corn silage

et al. 2022

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This study aims to determine the effect of partial (50% and 75%) and complete (100%) replacement of barley and corn silage with whole plant faba bean silage on milk production, feed intake and efficiency, digestibility, and rumen fermentation characteristics of high producing cows. A repeated 4 × 4 Latin square (early lactating cows: four cannulated and four non-cannulated) design was used. The silage used for four treatments were different: control diet (T0; 18.37% corn silage + 12.23% barley silage), diet one (T50; 9.18% corn silage + 6.12% barley silage + 15.30% faba bean silage), diet two (T75; 4.59% corn silage + 3.06% barley silage + 22.95% faba bean silage), and diet three (T100; 30.60% faba bean silage). The results showed that fat corrected milk (3.5% FCM) and energy corrected milk (ECM) were linearly increased with increasing level of whole plant faba bean silage in the diets. The starch digestibility was linearly decreased from 95.3% to 90.4% with increasing supplementation using faba bean silage. Rumen fermentation characteristics (pH, ammonia, volatile fatty acids) were similar among all the treatments. In conclusion, the inclusion of whole plant faba bean silage improved FCM, ECM, milk fat yield, and efficiency without negatively affecting the intake of dry matter. This study showed that whole plant faba bean silage can be used as an alternative feed for dairy cows.

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Evaluation of Barley Silage with Varying Ruminal In Vitro Fiber Digestibility on Lactation Performance and Chewing Activity of Lactating Dairy Cows in Comparison with Corn Silage

Cited by 2 publications

References 31 publications

Physiochemical Characteristics and Molecular Structures for Digestible Carbohydrates of Silages

Physiochemical Characteristics and Molecular Structures for Digestible Carbohydrates of Silages

Production performance and metabolic characteristics of cows fed whole plant faba bean silage in comparison with barley and corn silage

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