Effect of corn particle size with moderate amounts of wet distillers grains in finishing diets on starch digestibility and steer performance

Lundy, Erika L.; Doran, Beth E.; Vermeer, Evan; Loy, Daniel D.; Hansen, Stephanie L

doi:10.15232/pas.2015-01387

Cited by 5 publications

(5 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Effects of dent maize particle size on growth performance and nutrient digestibility have been investigated in previous trials (Galyean et al ., 1979; Turgeon et al ., 1983; Secrist et al ., 1995, 1995; Swanson et al ., 2014; Lundy et al ., 2015). In summary, small or no differences in growth performance of finishing cattle were observed among maize particle sizes ( n = 6 studies; comparisons = 14; average particle size = 2.52 mm; maximum particle size = 7.94 mm; minimum particle size = 0.5 mm; particle size s.e.m.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of alternative feed additives and flint maize grain particle size on growth performance, carcass traits and nutrient digestibility of finishing beef cattle

et al. 2019

View full text Add to dashboard Cite

The current study evaluated growth performance and digestion responses of finishing bulls fed diets containing 825 g/kg flint maize [dry matter (DM) basis] ground to medium (1.66 mm; MG) or coarse particle sizes (2.12 mm; CG), with added monensin (26 mg/kg; DM basis; MON) or a blend of essential oils (BEO) + exogenous α-amylase (AM; 90 mg/kg + 560 mg/kg commercial product, respectively, DM basis). In Expt 1, 256 Nellore bulls were blocked by initial body weight (BW) (360 ± 11.7 kg) and assigned to 48 pens in a 2 × 2 factorial arrangement of treatments. Effect of a maize particle size × feed additive interaction was not detected for final BW, DM intake (DMI), average daily gain (ADG) and feed efficiency. The DMI was greater for bulls fed BEO + AM v. MON. Final BW and ADG tended to be greater for bulls fed CG than MG maize. An interaction was detected for hot carcass weight which was 11 kg heavier for bulls fed BEO + AM v. MON in diets containing CG, but not MG particle size. In Expt 2, four ruminally cannulated Nellore steers were offered the same treatments as Expt 1, in a 4 × 4 Latin Square design. Intake of most nutrients was greater for steers fed CG than steers fed MG maize. In summary, feeding bulls CG maize increased growth performance and carcass characteristics compared with MG. The combination of BEO + AM resulted in heavier carcass weights compared with MON supplementation when included in diets containing CG maize.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Hence, it is expected that reducing grain particle size may further increase starch digestion and growth performance of finishing beef cattle fed flint maize. However, grinding maize too finely can result in rumen fermentation, leading to acidosis and decreased growth performance (Brown and Lawrence, 2010; Lundy et al ., 2015).…”

Section: Introductionmentioning

confidence: 99%

Effects of alternative feed additives and flint maize grain particle size on growth performance, carcass traits and nutrient digestibility of finishing beef cattle

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Liver abscesses not only impact packers through condemnation of livers but also producer economics as adhered abscesses often result in excessive trim of the carcass, decreasing hot carcass weights. In a large pen study, Lundy et al (2015) noted approximately 20% lesser ADG during the reimplant period of steers with A+ LAS at harvest. While only two steers in the present study had liver abscesses of this severity, HCW was decreased by 11.8 kg relative to steers with an A or 0 LAS, similar to the 9 kg decrease reported by Lundy et al (2015) .…”

Section: Resultsmentioning

confidence: 96%

“…In a large pen study, Lundy et al (2015) noted approximately 20% lesser ADG during the reimplant period of steers with A+ LAS at harvest. While only two steers in the present study had liver abscesses of this severity, HCW was decreased by 11.8 kg relative to steers with an A or 0 LAS, similar to the 9 kg decrease reported by Lundy et al (2015) . Interestingly, Lundy et al (2015) supplemented a similar rate of Zn, 80 to 90 mg Zn/kg DM, but from ZnSO 4 .…”

Section: Resultsmentioning

confidence: 96%

Effects of supplemental zinc on growth, carcass characteristics, and liver abscess formation in steers with experimentally induced ruminal acidosis challenge

Lundy-Woolfolk,

Genther-Schroeder,

Branine

et al. 2023

Translational Animal Science

View full text Add to dashboard Cite

The study aim was to evaluate the effect of dietary Zn supplementation on steer performance, biomarkers of inflammation and metabolism, and liver abscess formation in response to a mild acidosis challenge. Forty-two steers (417 ± 3.99 kg; n = 6/pen) were housed in pens with bunks designed to measure individual DMI and fed one of two diets containing either 0 (CON; n = 18) or 90 mg Zn/kg from a Zn-amino acid complex (Zn-AA; n = 18; AvailaZn; Zinpro) for 109 d. Six additional steers were fed the CON diet and did not undergo the acidosis challenge (NON; n = 6). The acidosis challenge included restricting steers to 50% of the previous 7 d daily DMI on d 46, and on d 47, steers were individually provided 10% of DMI as cracked corn (as-fed) at 0800 h followed by ad libitum feed access 2 h post-grain consumption. Steer was the experimental unit, and two contrasts were constructed: NON vs. CON and CON vs. Zn-AA. Blood samples were collected on d 40, 48, 53, 69, 80, and 108 and analyzed as repeated measures. Final BW and overall ADG (2.29, 2.30, and 2.31 ± 0.920 kg/d for CON, Zn-AA, and NON, respectively) were not different (P ≥ 0.74) between treatments. By design, DMI was greater (P < 0.01) for NON compared to CON on d 46 but was not different (P ≥ 0.41) for the rest of the experiment. While HCW (423, 428, and 424 ± 7.9 kg for CON, Zn-AA, and NON, respectively) and ribeye area were not different (P ≥ 0.53) due to treatment, marbling score tended (P = 0.06) to be greater in CON compared to Zn-AA. The 12th rib backfat thickness was greater (P = 0.05) in NON vs. CON steers. Liver abscess incidence tended to be greater (P = 0.12) in CON (24% abscesses) vs. Zn-AA (6% abscesses). NON had a greater incidence (P = 0.05; 50% abscesses) compared to CON. Overall, blood fibrinogen and leukocyte counts were not different between treatments (P ≥ 0.67); however, neutrophil-to-lymphocyte ratio tended to be greater in NON vs. CON (P = 0.08). Serum aspartate aminotransferase and gamma-glutamyl transferase concentrations were greater in NON vs. CON (P ≤ 0.02), and serum alkaline phosphatase concentration was lesser in CON vs. Zn-AA (P < 0.01). Overall, dietary Zn supplementation tended to lessen incidence of liver abscesses with limited impacts on overall cattle performance. Shifts in liver enzymes may represent opportunities to identify cattle with liver abscesses earlier in the feeding period.

show abstract

“…Effects of dent corn particle size on animal performance and nutrient digestibility have been investigated in previous trials (Galyean et al, 1979;Turgeon et al, 1983;Secrist et al, 1995;Secrist et al, 1996;Swanson et al, 2014;Lundy et al, 2015). In summary, among these published studies no significant differences in growth performance of finishing cattle were observed among the corn particles sizes (n = 6 studies; comparisons = 14; average particle size = 2.52 mm; maximum particle size = 7.94 mm; minimum particle size = 0.5 mm; particle size SEM = 0.52 mm) even though total tract starch digestion was greater with more finely ground dent corn grain in several of these studies.…”

Section: Discussionmentioning

confidence: 99%

Effect of the addition of essential oils, enzymes, ionophores and combinations of feed additives in finishing cattle diets

Meschiatti¹

View full text Add to dashboard Cite

Effect of corn particle size with moderate amounts of wet distillers grains in finishing diets on starch digestibility and steer performance

Cited by 5 publications

References 17 publications

Effects of alternative feed additives and flint maize grain particle size on growth performance, carcass traits and nutrient digestibility of finishing beef cattle

Effects of alternative feed additives and flint maize grain particle size on growth performance, carcass traits and nutrient digestibility of finishing beef cattle

Effects of supplemental zinc on growth, carcass characteristics, and liver abscess formation in steers with experimentally induced ruminal acidosis challenge

Effect of the addition of essential oils, enzymes, ionophores and combinations of feed additives in finishing cattle diets

Contact Info

Product

Resources

About