Effects of Various Levels of Sulfur upon Cellulose Digestion in Purified Diets and Lignocellulose Digestion in Corn Fodder Pellets In Vitro

Js, Barton; Ls, Bull; Rw, Hemken

doi:10.2527/jas1971.333682x

Cited by 20 publications

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“…It has been shown that corn stalk had the highest NDF and ADF degradation rate when the sulphur content was 0.18% in sheep diet (Zheng, Duan, & Hou, 2009). In in vitro studies, rumen cellulose degradation increased linearly with increasing level of sulphur, but when the sulphur content reached to 0.4%, the degradation of cellulose decreased relative to the sulphur level of 0.33% and 0.38% (Barton, Bull, & Hemken, 1971 to our findings, Spruill, Hays, and Cromwell (1971) had also reported that feeding high iron diets during gestation could increase SI in sows, and Li et al (2018) found that iron from an amino acid complex could increase SI in the blood. Total iron-bindi ng capacity could reflect the blood's capacity to bind iron with trans ferrin, a value that usually increases in the case of iron deficiency (Smith, Moore, Boyington, Pollmann, & Schoneweis, 1984).…”

Section: Discussionsupporting

confidence: 78%

“…Moreover, in our experiment, the sulphur content of the diets in the control, T1, T2 and T3 was 0.07%, 0.09%, 0.11% and 0.14% respectively. In in vitro studies, rumen cellulose degradation increased linearly with increasing level of sulphur, but when the sulphur content reached to 0.4%, the degradation of cellulose decreased relative to the sulphur level of 0.33% and 0.38% (Barton, Bull, & Hemken, 1971). Sulphur supplementation in ruminant diet could increase fibre digestibility (Bull, 1984;Slyter, Chalupa, Oltjen, & Weaver, 1986).…”

Section: Discussionmentioning

confidence: 90%

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Effects of over‐load iron on nutrient digestibility, haemato‐biochemistry, rumen fermentation and bacterial communities in sheep

Wang

Jiang

Zhang

et al. 2019

Animal Physiology Nutrition

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There is a risk of iron overload in grazing livestock. However, the effects on nutrient absorption and rumen function induced by excessive iron have not been well understood. Therefore, the purpose of present study was to investigate the impact of over-load iron on growth performance, nutrient digestibility, blood biochemistry, rumen fermentation and bacterial communities in sheep. Twenty-four German Mutton Merino cross-bred sheep with weight (42.66 ± 2.34 kg BW) were randomly divided into 4 groups, each with 6 replicates and 1 sheep per replicate. The basal diet consisted of 60% Leymus chinensis hay and 40% concentrate. The sheep in 4 groups were fed the basal diets supplemented with 50 (Control), 500 (T1), 1,000 (T2) and 1,500 (T3) mg Fe/kg as ferrous sulphate monohydrate (FeSO 4 ·H 2 O) respectively.And the actual contents of iron in the diet were determined to be 457.68 (control), 816.42 (T1), 1,256.78 (T2) and 1,725.63 (T3) mg/kg respectively. The experiment lasted 62 days including a 7-day metabolism trial. During the whole experiment, the digestibility of dry matter, organic matter, neutral detergent fibre and acid detergent fibre showed a quadratic increase with increasing over-load iron levels (p < .05), and

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 90%

Effects of over‐load iron on nutrient digestibility, haemato‐biochemistry, rumen fermentation and bacterial communities in sheep

Wang

Jiang

Zhang

et al. 2019

Animal Physiology Nutrition

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“…Providing adequate dietary S is critical to maximizing ruminai fermentation in ruminants fed high-fiber diets (Barton et al, 1971). In the present study, ADG was numerically greater (4.6%) during the growing phase in steers fed 0.31% S compared with those receiving the control diet that had an analyzed concentration of 0.12% S. Although differences among treatments were nonsignificant, previous studies would suggest that 0.12% S may be inadequate for cattle fed corn silage-based diets.…”

Section: Discussionmentioning

confidence: 99%

Tolerance of cattle to increased dietary sulfur and effect of dietary cation-anion balance

Spears

Lloyd

Fry

2011

Journal of Animal Science

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The objective of this study was to determine if dietary cation-anion balance (DCAB) affects the concentration of S that can be tolerated by growing and finishing cattle without adversely affecting performance. Angus cross and Bradford steers (n=114; average initial BW=252.8 kg) were blocked by BW and breed, and randomly assigned within a block to treatment. The design was a 3 × 2 factorial arrangement of treatments with S (from NH(4)SO(4)) supplemented at 0, 0.15, or 0.30% of DM, and NaHCO(3) added at 0 or 1.0% of DM. Each treatment consisted of 3 pens containing 5 steers and 1 pen containing 4 steers. Steers were used in an 84-d growing study followed by a finishing study. A corn silage-based diet was fed during the growing study and a corn-based diet was fed during the finishing study. Steers were not randomized between experiments. The analyzed concentrations of S in the growing diets were 0.12, 0.30, and 0.46%, whereas the analyzed concentrations of S in the finishing diets were 0.13, 0.31, and 0.46% for treatments supplemented with 0, 0.15, and 0.30% S, respectively. Increasing DCAB by approximately 15 mEq/100 g of DM, by the addition of NaHCO(3,) did not affect (P > 0.36) performance during the growing or finishing studies. During the growing study DMI was not affected (P=0.29) by dietary S. Steers fed diets containing 0.30% S had greater ADG (P=0.02) and G:F (P=0.01) than those receiving 0.46% S, but similar (P > 0.36) performance to steers fed 0.12% S. During the finishing study, steers fed diets containing 0.46% S had less ADG than steers fed 0.13 (P=0.004) or 0.31% S (P=0.07), whereas ADG did not differ (P=0.18) among steers fed 0.13 and 0.31% S. Steers fed diets containing 0.31 (P=0.01) or 0.46% S (P=0.001) had less DMI than controls, but G:F was not affected (P=0.52) by S during the finishing study. Carcass characteristics did not differ (P > 0.18) among steers fed diets containing 0.13 and 0.31% S. Steers receiving diets containing 0.46% S had decreased HCW (P=0.001), quality (P=0.02), and yield grades (P=0.04) than steers receiving 0.13% S. Plasma Cu concentrations on d 101 of the finishing phase and liver Cu concentrations at slaughter were greater (P ≤ 0.05) in control steers compared with those fed diets containing 0.31 or 0.46% S. This study indicates that steers fed growing diets can tolerate up to 0.46% S with minimum effects on performance. Finishing steers tolerated diets containing 0.31% S without adverse affects on ADG or G:F. However, 0.46% S greatly decreased ADG and DMI, and increasing DCAB did not prevent these depressions.

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“…Garrigus et al (1953) found that the addition of elemental sulfur to a ration low in sulfur increased feed utilization by lambs. Dry matter digestibility values ranged from 76.1 to 80.9% Barton et al (1971) observed that the addition of' sulfur to a sulfur deficient in vitro system improved the digestibility of cellulose and lignocellulose. McLaren et al (1965) did not observe an influence of methionine supplementation on the digestibility of organic matter or crude fiber by sheep fed a semipurified diet.…”

Section: Resultsmentioning

confidence: 97%

Sulfur Metabolism In Ruminants

Kahlon

Meiske

Goodrich

1975

Journal of Animal Science

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Effects of Various Levels of Sulfur upon Cellulose Digestion in Purified Diets and Lignocellulose Digestion in Corn Fodder Pellets In Vitro

Cited by 20 publications

References 0 publications

Effects of over‐load iron on nutrient digestibility, haemato‐biochemistry, rumen fermentation and bacterial communities in sheep

Effects of over‐load iron on nutrient digestibility, haemato‐biochemistry, rumen fermentation and bacterial communities in sheep

Tolerance of cattle to increased dietary sulfur and effect of dietary cation-anion balance

Sulfur Metabolism In Ruminants

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