Abstract
Frothy bloat is a serious digestive disorder in cattle (Bos taurus L.) grazing winter wheat (Triticum aestivum L.) pastures in the Southern Great Plains of the USA. Wheat plant metabolism may be one of the factors involved in bloat occurrence. In a series of experiments conducted during 2004–2007, we evaluated the effects of solar radiation intensity (ambient, 100% vs. reduced, 25%), a short-time (24 h vs. 48 h) exposure to solar radiation, and forage allowance (high, 18 kg vs. low, 6 kg DM/100 kg body weight) on seasonal concentration of phenolic compounds and foam strength (a measure of bloat potential) of wheat forage ‘Cutter’. Reduced solar radiation decreased total phenolic concentration and increased foam strength when compared to ambient solar radiation. Forage allowance interacted with solar radiation and short-term exposure treatments in determining phenolic concentrations; however, the effects were inconsistent during and among growing seasons. Concentration of phenolic compounds responded rapidly to sudden changes in weather patterns (passing cold fronts) that were usually associated with significant decrease in solar radiation intensity and temperature. Solar radiation intensity was positively correlated with total phenolic concentration and explained 62% to 72% of the variation in total phenolic concentration. Correlation between temperature and total phenolic concentration varied among growing seasons and explained 9–17% of the variation in total phenolic concentration. Results suggest that phenolic concentration in wheat forage is correlated with solar radiation. The decrease in phenolic concentration and resulting increase of bloat potential are especially pronounced during sudden changes in weather patterns during winter.
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Claims 7
Claim · model-written summary
Reduced solar radiation decreased wheat total phenolic concentration relative to ambient light.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Reduced solar radiatione0
- Outcome
- total phenolic concentratione0
- Direction
- decreasede0
- Comparator
- ambient solar radiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced solar radiation decreased total phenolic concentration and increased foam strength when compared to ambient solar radiation”
t0“wheat forage”
Claim · model-written summary
Reduced solar radiation increased wheat forage foam strength relative to ambient light.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Reduced solar radiatione0
- Outcome
- foam strengthe0
- Direction
- increasede0
- Comparator
- ambient solar radiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced solar radiation decreased total phenolic concentration and increased foam strength when compared to ambient solar radiation”
t0“wheat forage”
Claim · model-written summary
Forage allowance interacted with radiation and short exposure treatments for phenolic concentration, inconsistently across seasons.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Forage allowancee0
- Outcome
- phenolic concentrationse0
- Qualifier
- inconsistent during and among growing seasonse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Forage allowance interacted with solar radiation and short-term exposure treatments in determining phenolic concentrations; however, the effects were inconsistent during and among growing seasons”
t0“wheat forage”
Claim · model-written summary
Phenolic concentration responded rapidly to passing cold fronts accompanied by reduced radiation and temperature.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- sudden changes in weather patterns (passing cold fronts)e0
- Outcome
- Concentration of phenolic compoundse0
- Qualifier
- significant decrease in solar radiation intensity and temperaturee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentration of phenolic compounds responded rapidly to sudden changes in weather patterns (passing cold fronts) that were usually associated with significant decrease in solar radiation intensity and temperature”
t0“wheat forage”
Claim · model-written summary
Solar radiation correlated positively with total phenolics and explained 62% to 72% of variation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Solar radiation intensitye0
- Outcome
- total phenolic concentratione0
- Direction
- positively correlatede0
- Value
- 62% to 72%e0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Solar radiation intensity was positively correlated with total phenolic concentration and explained 62% to 72% of the variation in total phenolic concentration”
t0“wheat forage”
Claim · model-written summary
Temperature correlation with phenolics varied across seasons and explained 9–17% of variation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- temperaturee0
- Outcome
- total phenolic concentratione0
- Value
- 9–17%e0
- Qualifier
- varied among growing seasonse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Correlation between temperature and total phenolic concentration varied among growing seasons and explained 9–17% of the variation in total phenolic concentration”
t0“wheat forage”
Claim · model-written summary
Winter weather changes particularly accentuated decreased phenolics and increased bloat potential in wheat forage.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- sudden changes in weather patterns during wintere0
- Outcome
- phenolic concentratione0
- Direction
- decreasee0
- Qualifier
- resulting increase of bloat potentiale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in phenolic concentration and resulting increase of bloat potential are especially pronounced during sudden changes in weather patterns during winter”
t0“wheat forage”
The same questions in other papers
light · quality: phytochemicals · Triticum aestivum (wheat)Positive and negative results
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- positive
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6 papers more in this group
See all 10 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.