Sulfur Source for in Vitro Cellulose Digestion and in Vivo Ration Utilization, Nitrogen Metabolism, and Sulfur Balance

Bull, L. S.; Vandersall, J.H.

doi:10.3168/jds.s0022-0302(73)85122-7

Cited by 37 publications

(18 citation statements)

References 15 publications

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“…Hill (1985) reported that addition of 0.25% S to a urea-treated corn silage diet containing 0.12% S improved ADG and feed efficiency in steers. Sulfur addition to a corn silage-based diet containing 0.20% S increased ADF digestibility in steers (Bull and Vandersall, 1973).…”

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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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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“…For lambs, sulfur in the elemental form was required by approximately three times more than the sulfur in the organic form (Johnson et al, 1971). Bull and Vandersall (1973) observed an increase from 68% to 81% in the apparent absorption of sulfur utilizing DL-methionine, when compared with elemental sulfur. Ammerman et al (1995) identified 35 S in the amino acids of wool, milk, blood plasma and tissues, after feeding animals with 35 S originated from sulfate.…”

Section: Discussionmentioning

confidence: 89%

Sulfur sources in protein supplements for ruminants

et al. 2014

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-The present study evaluates the efficiency of different sulfur sources for ruminant nutrition. The fiber digestibility and the amino acid profile were analyzed in the duodenal digesta of crossbred steers fed Brachiaria dictyoneura hay. The sources utilized were elemental sulfur (ES70S), elemental sulfur (ES98S); calcium sulfate in hydrated (HCS), CaSO4.2H 2 O, and anhydrous (ACS), CaSO 4 , forms; and ammonium sulfate (AS), (NH 4 ) 2 SO 4 , keeping a nitrogen:sulfur ratio of 11:1. The iso-protein supplements had 50% of protein in the total dry matter (DM). Five Holstein × Zebu steers, which were fistulated in the rumen and abomasum, were distributed in a 5 × 5 Latin square. The different sulfur sources in the supplement did not affect any of the evaluated nutritional factors, such as intake of hay dry matter and protein supplement, crude protein (CP), neutral detergent fiber corrected for ash and protein (NDFap), organic matter (OM), non-fibrous carbohydrate (NFC), ether extract (EE), total digestible nutrients (TDN), NDFap and CP digestibility coefficients, ruminal pH, and ruminal ammonia concentration. The concentrations of amino acids available in the abomasal digesta did not differ significantly in the tested diets. The sulfur sources evaluated in the present study are suitable as supplement for cattle, and their employment may be important to avoid environmental contaminations.

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“…Whilst Fron et al (1989) reported significant differences in apparent absorption of stable S in cattle, the difference was negligible at 68.9% for sulphate and 68.3% for methionine. Other authors report no difference for these stable forms (Bull and Vandersall, 1972;Kahlon et al, 1975). In general, true absorption varies from 77 to 87% for non-elemental forms and apparent absorption from 60 to 69%.…”

Section: Transfer Of Different 35 S Sources To Milkmentioning

confidence: 93%