Effect of Methionine Hydroxy Analog on Energy Utilization of a Bird-Resistant Sorghum Grain Diet Fed Steers

Brommelsiek, W. A.; Shirley, R. L.; Bertrand, J. E.; Palmer, A. Z.

doi:10.2527/jas1979.4861475x

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…Feed efficiency (G:F) was less for HTS than corn (P < 0.01; Table 2), but G:F for steers fed HTS (19.3 g/100 g) was almost twice the efficiency reported in the works of Maxson et al (1973), Brommelsiek et al (1979), and Fox et al (1970). These studies reported G:F of 10.0 g/100 g, 10.5 g/100 g, and 10.1 g/100 g, respectively.…”

Section: Resultsmentioning

confidence: 88%

“…Maxson et al (1973) reported that their HTS diet contained 2.5% tannins, but they used a different tannin assay than we did, and they did not specify the standard employed. Brommelsiek et al (1979) and Fox et al (1970) did not report concentration of tannins (bird resistant DeKalb BR-64 and AKS-614, respectively). Because different assays and standards would give different results, it is not possible to accurately compare tannin content in our HTS diet with Maxson et al (1973).…”

Section: Resultsmentioning

confidence: 99%

“…Energy values for corn Maxson et al (1973) calculated NE m of corn and of low-and high-tannin sorghum to be 2.40, 1.98, and 1.78 Mcal/kg DM and NE g to be 1.49, 1.15, and 0.73 Mcal/kg of DM, respectively. Brommelsiek et al (1979) reported NE m and NE g of HTS fed to steers for ad libitum intake to be 1.26 and 1.09 Mcal/kg of DM. Thus, our estimated values for NE m and NE g of HTS are greater than values reported by other authors.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Finishing steers with diets based on corn, high-tannin sorghum, or a mix of both: Feedlot performance, carcass characteristics, and beef sensory attributes1

Larraín

Schaefer

Arp

et al. 2009

Journal of Animal Science

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The objective of this work was to compare feedlot performance, carcass characteristics, and beef sensory attributes from steers finished with diets based on corn, high-tannin sorghum (HTS), and a mix of both grains. Angus crossbred steers (n = 11 steers per treatment, initial BW = 404 +/- 18 kg) were finished on diets containing 765 g/kg of DM of corn, HTS, or a 1:1 mix of corn and HTS. Final BW (P < 0.01), ADG (P < 0.001), and G:F (P < 0.01) were reduced in steers fed HTS when compared with steers fed corn. Steers fed the mixed diet had greater G:F than the average between corn and HTS diets (P = 0.04), which indicated that mixing corn and HTS had positive associative effects. Estimated NE(m) of HTS was 1.91, and estimated NE(g) was 1.35 Mcal/kg of DM. Hot carcass weight (P < 0.01), trimmed carcass weight (P < 0.01), yield grade (P = 0.04), and 12th-rib fat thickness (P = 0.01) were less in steers fed HTS than in those fed corn. Estimated percentage of HCW as boneless, closely trimmed retail cuts was greater in steers fed HTS compared with those fed corn (P = 0.02) but, due to the decreased HCW, estimated amount of boneless, closely trimmed retail cuts was less in steers fed HTS than in those fed corn (P = 0.03). Steers fed HTS had greater pH on LM (P = 0.02) than steers fed corn, but the difference was small (5.42 +/- 0.02 vs. 5.36 +/- 0.02, respectively) and within the range of normal beef pH. Diet had no effect on Warner-Bratzler shear values (P > or = 0.72). Multivariate ANOVA indicated a difference in sensory attributes of beef from corn and HTS steers (Wilks' Lambda, P = 0.04). When evaluating each sensory attribute independently, panelists found beef from steers fed HTS to be less juicy (P < 0.01), less tender (P = 0.03), and more cooked (P < 0.01) than beef from animals fed corn. Data from this study indicated that by using a 1:1 mix of HTS and corn it is possible to finish steers to similar BW and carcass quality as by using a corn-based diet. Also, total replacement of corn by HTS in the diets produced lighter and leaner animals. Total replacement of corn by HTS in the finishing diet changed beef sensory attributes, reducing the perception of beef tenderness and juiciness by panelists but without changing instrumental tenderness.

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Section: Resultsmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Finishing steers with diets based on corn, high-tannin sorghum, or a mix of both: Feedlot performance, carcass characteristics, and beef sensory attributes1

Larraín

Schaefer

Arp

et al. 2009

Journal of Animal Science

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“…Milk fat contained more of the 18-carbon fatty acids and less short-chain fatty acids when MHA was supplemented. Brommelsiek et al (1979) reported increased carcass quality grades when limit-fed steers were fed 7 and 30 g of MHA/d. They reported that marbling score was increased when 7 g/d MHA was fed, whereas 30 g/d did not increase marbling further.…”

Section: Resultsmentioning

confidence: 95%

“…Spears and Samsell (1986) reported that Zn from zinc methionine and zinc oxide was metabolized differently after absorption in sheep. Patton et al (1970) and Brommelsiek et al (1979) reported that methionine hydroxy analog (MHA) increased milk fat and carcass quality grades. The objective of this research was to determine the effect of a daily level of 360 mg of Zn, fed as zinc methionine or as zinc oxide, on the performance and carcass quality of beef cattle.…”

Section: Introductionmentioning

confidence: 99%

Performance and Carcass Quality of Steers Supplemented with Zinc Oxide or Zinc Methionine

Greene

Lunt

Byers

et al. 1988

Journal of Animal Science

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Forty-five Angus steers (avg initial wt 330 kg) were individually fed for 112 d to assess the value of supplemental Zn and source on performance and carcass quality. Steers had ad libitum access to a control diet (81 ppm Zn) of 33% whole corn, 33% ground milo, 15% cottonseed hulls and 13% cottonseed meal, or this control diet with 360 mg Zn/d added from either zinc methionine or zinc oxide. Steers were slaughtered on d 114, and carcass composition was determined by specific gravity. Average daily gain and feed efficiency were not affected by dietary treatments. Steers fed zinc methionine had a higher (P less than .05) USDA quality grade than those fed the control and zinc oxide diets. Marbling score was higher (P less than .05) for steers fed zinc methionine than for those fed control and zinc oxide treatments (4.4 vs 4.0 and 4.0, respectively, where 3 = slight, 4 = small, 5 = modest). Steers fed zinc methionine tended to have more (P less than .10) external fat (13 mm) than steers fed the control diet (10 mm); steers supplemented with zinc oxide had intermediate amounts of external fat (11 mm). Steers fed zinc methionine had 10.5 and 12.8% more (P less than .05) kidney, pelvic and heart (KPH) fat than steers fed control or zinc oxide diets, respectively. The effects of zinc methionine on carcass quality grade and marbling score may be due to Zn and (or) methionine. Regardless of the mechanism, the difference represents a potential economic benefit to producers.

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Bibliography

1986

Nitrogen and Energy Nutrition of Ruminants

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Effect of Methionine Hydroxy Analog on Energy Utilization of a Bird-Resistant Sorghum Grain Diet Fed Steers

Cited by 5 publications

References 6 publications

Finishing steers with diets based on corn, high-tannin sorghum, or a mix of both: Feedlot performance, carcass characteristics, and beef sensory attributes1

Finishing steers with diets based on corn, high-tannin sorghum, or a mix of both: Feedlot performance, carcass characteristics, and beef sensory attributes1

Performance and Carcass Quality of Steers Supplemented with Zinc Oxide or Zinc Methionine

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