Effects of feeding two microbial additives in sequence on growth performance and carcass characteristics of finishing heifers (2000)

Huck, G.L.; Kreikemeier, K K; Ducharme, G.A.

doi:10.4148/2378-5977.1788

Cited by 14 publications

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“…Under the conditions of this study, little advantage was observed in feeding P169 with regard to growth performance or carcass traits of feedlot cattle fed a corn-and corn DDGS-based finishing diet, which is in agreement with findings from other studies using Propionibacterium (Galyean et al 2000;Elam et al 2003). Huck et al (2000) also reported that feeding Propionibacterium freudenreichii to finishing heifers fed a corn-based diet did not affect ADG, DMI, or feed efficiency compared with Controls. In contrast, Swinney-Floyd et al (1999) found improved feed efficiency (5.32 kg DMI kg (1 ADG) in feedlot steers feed a wheat and corn-based diet supplemented with P. feudenreichii P63.…”

Section: Discussionsupporting

confidence: 92%

Effect of Propionibacterium acidipropionici P169 on growth performance and rumen metabolism of beef cattle fed a corn- and corn dried distillers’ grains with solubles-based finishing diet

et al. 2014

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Narvaez, N., Alazzeh, A. Y., Wang, Y. and McAllister, T. A. 2014. Effect of Propionibacterium acidipropionici P169 on growth performance and rumen metabolism of beef cattle fed a corn- and corn dried distillers’ grains with solubles-based finishing diet. Can. J. Anim. Sci. 94: 363–369. A growth and metabolism experiment was conducted to evaluate the effect of Propionibacterium acidipropionici P169 on feedlot steers fed a corn- and corn dried distillers' grains with soluble (DDGS)-based finishing diet. Steers (40 non-cannulated and 8 ruminally cannulated) were divided into two groups and administered 10 g head−1 d−1 of maltodextrin containing 1×1011 colony-forming units (CFU) of P169 or the same amount of carrier (Control), top-dressed once daily upon feeding. Feed intake, growth rate and feed efficiency were determined over 115 d. For cannulated steers, ruminal pH was monitored continuously for 5 d during the second week of each month over the entire feeding period with rumen samples collected 3 h after feeding on days 1 and 5. Molar proportions of butyrate, branched-chain volatile fatty acids (VFA) and NH3-N concentration increased (P<0.01) with P169, whereas total VFA, molar proportions of propionate, the acetate:propionate ratio, and lactate concentration did not differ (P>0.05) between treatments. P169 had a limited effect on ruminal pH as duration and area under the curve both at pH 5.5 and 5.2 as well as frequency of acute ruminal acidosis bouts were similar (P>0.05) for both groups. Compared with control steers, steers fed P169 had more (P<0.05) bouts of subacute ruminal acidosis (SARA). All steers had similar (P>0.05) feed intake, growth rate, feed efficiency and carcass characteristics, except for longissiumus muscle area, being less (P<0.05) for P169 steers than controls. Supplementing P169 to beef cattle fed a corn- and corn DDGS-based finishing diet had no effect on growth performance of beef cattle or ruminal pH and increased the bouts of SARA.

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Section: Discussionsupporting

confidence: 92%

Effect of Propionibacterium acidipropionici P169 on growth performance and rumen metabolism of beef cattle fed a corn- and corn dried distillers’ grains with solubles-based finishing diet

et al. 2014

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“…No significant differences were observed for any carcass characteristics in the current study, however, BOVD tended to increase the percent of Choice + Prime carcasses when compared to control. Huck et al (2000) reported a similar increase in Prime + Choice carcasses in heifers receiving Propionibacterium DFM versus controls, which agrees with the tendency that we observed [26]. Other studies have also failed to identify differences in carcass characteristics outside of conflicting results on HCW that are likely a function of the varied responses on The differences reported in these studies coincided with a comparable improvement in final BW.…”

Section: Discussionsupporting

confidence: 90%

Effect of Direct-Fed Microbial Supplementation on Pathogenic <i>Escherichia coli</i> Fecal Shedding, Live Performance, and Carcass Characteristics in Feedlot Steers

Thompson¹,

Calle²,

Ribeiro³

et al. 2020

OJAS

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Three experiments were conducted to evaluate direct-fed microbial (DFM) supplementation on live performance, carcass characteristics, and fecal shedding of E. coli in feedlot steers. In Exp. 1, 400 steers (BW = 348 kg) were assigned to treatments: CON = lactose carrier only, BOV = P. freudenreichii (NP24) + L. acidophilus (NP51), BOVD = P. freudenreichii (NP24) + L. acidophilus (NP51), and COMB = BOV fed for the first 101 d on feed, followed by BOVD for the final 28 d prior to harvest. In Exp. 2 (n = 1800; BW = 354 kg) and Exp. 3 (n = 112; BW = 397 kg), steers were utilized in a randomized complete block design and assigned to DFM treatments using low dose and high dose, respectively. Fecal samples were collected prior to harvest and analyzed for E. coli serogroups. In Exp. 1, DFM reduced (P < 0.01) the concentration of E. coli O157. Prevalence of O157 was reduced by BOVD supplementation in Exp. 2 and 3 (P < 0.01 and P = 0.08, respectively), and concentration of E. coli O157 in positive samples was reduced in both experiments where enumeration was performed (P ≤ 0.02). Weighted mean differences across the three experiments were equal to a 33% reduction in the prevalence of E. coli O157:H7 in BOVD treated cattle. A significant reduction in prevalence of O26, O45, O103, and O121 was observed in Exp. 2 (P ≤ 0.03). These results indicate that high levels of L. acidophilus (NP51) may represent an effective pre-harvest food safety intervention to reduce fecal shedding of several E. coli serogroups.

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“…Galyean et al (2000) noted increased HCW (P ≤ 0.05) for the average of DFM treatments vs. control, but other carcass characteristics did not differ among treatments. Huck et al (2000) fed heifers a control diet or 1 of 4 treatments (10 pens/treatment): (1) L. acidophilus BG2FO4 for the entire period, (2) P. freudenreichii P-63 for the entire period; (3) L. acidophilus BG2FO4 for 28 d, followed by P. freudenreichii P-63 for the remainder of the period; and (4) P. freudenreichii P-63 for 28 d, followed by L. acidophilus BG2FO4 for the remainder of the period. These authors reported a trend for the percentage of Choice or Prime carcasses to be greater when P. freudenreichii P-63 was fed for the entire feeding period than for other treatments.…”

Section: Resultsmentioning

confidence: 99%

Effects of increasing dose of live cultures of Lactobacillus acidophilus (Strain NP 51) combined with a single dose of Propionibacterium freudenreichii (Strain NP 24) on performance and carcass characteristics of finishing beef steers1

Vasconcelos

Elam

Brashears

et al. 2008

Journal of Animal Science

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Two experiments, each with a randomized complete block design, were conducted to evaluate the effects of feeding live cultures of Lactobacillus acidophilus plus Propionibacterium freudenreichii on performance and carcass characteristics of feedlot cattle. British and British x Continental steers (240 steers in each experiment; 12 pens/treatment in each study; average initial BW = 370 +/- 6 kg) were fed a 92% concentrate diet based primarily on steam-flaked corn. Four treatments were evaluated, which included a control diet (lactose carrier only) or diets containing 1 x 10(9) cfu/(steer x d) of P. freudenreichii (strain NP 24) with 1 x 10(7) (L), 1 x 10(8) (M), or 1 x 10(9) (H) cfu of L. acidophilus strain NP 51/(steer x d). Data were pooled for the 2 experiments. No differences (P > 0.10) were detected among treatments for final BW, final BW based on HCW, or DMI during various stages of the feeding period or overall. Likewise, no differences among treatments were observed for either ADG or carcass-adjusted ADG (P > 0.10), except for the tendency for a quadratic effect of NP 51 dose for the overall feeding period (P = 0.10), in which cattle fed M had a lower ADG than those fed L and H. Gain efficiency on a live BW basis was improved (P = 0.02) by NP 51 treatments compared with the control, with G:F responding quadratically to NP 51 dose for the overall feeding period (P = 0.05). In contrast to G:F based on live BW, carcass-adjusted G:F tended (P = 0.14) to decrease linearly with increasing NP 51 dose because the dressing percent tended (P = 0.12) to be less for steers fed direct-fed microbial compared with control cattle. Within the direct-fed microbial treatments, there also was a tendency (P = 0.13) for a linear decrease in the dressing percent as the NP 51 dose increased. No differences were observed in other carcass characteristics (P > 0.10), except tendencies for a quadratic increase in marbling score (P = 0.11) and percentage of USDA Choice cattle (P = 0.10). These data indicate that live cultures of L. acidophilus strain NP 51 plus P. freudenreichii strain NP 24 increased G:F of feedlot cattle fed steam-flaked corn-based diets by approximately 2%, but the effects depended on the dose of Lactobacillus.

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Effects of feeding two microbial additives in sequence on growth performance and carcass characteristics of finishing heifers (2000)

Cited by 14 publications

References 0 publications

Effect of Propionibacterium acidipropionici P169 on growth performance and rumen metabolism of beef cattle fed a corn- and corn dried distillers’ grains with solubles-based finishing diet

Effect of Propionibacterium acidipropionici P169 on growth performance and rumen metabolism of beef cattle fed a corn- and corn dried distillers’ grains with solubles-based finishing diet

Effect of Direct-Fed Microbial Supplementation on Pathogenic <i>Escherichia coli</i> Fecal Shedding, Live Performance, and Carcass Characteristics in Feedlot Steers

Effects of increasing dose of live cultures of Lactobacillus acidophilus (Strain NP 51) combined with a single dose of Propionibacterium freudenreichii (Strain NP 24) on performance and carcass characteristics of finishing beef steers1

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Effects of feeding two microbial additives in sequence on growth performance and carcass characteristics of finishing heifers (2000)

Cited by 14 publications

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Effect of Propionibacterium acidipropionici P169 on growth performance and rumen metabolism of beef cattle fed a corn- and corn dried distillers’ grains with solubles-based finishing diet

Effect of Propionibacterium acidipropionici P169 on growth performance and rumen metabolism of beef cattle fed a corn- and corn dried distillers’ grains with solubles-based finishing diet

Effect of Direct-Fed Microbial Supplementation on Pathogenic &lt;i&gt;Escherichia coli&lt;/i&gt; Fecal Shedding, Live Performance, and Carcass Characteristics in Feedlot Steers

Effects of increasing dose of live cultures of Lactobacillus acidophilus (Strain NP 51) combined with a single dose of Propionibacterium freudenreichii (Strain NP 24) on performance and carcass characteristics of finishing beef steers1

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Effect of Direct-Fed Microbial Supplementation on Pathogenic <i>Escherichia coli</i> Fecal Shedding, Live Performance, and Carcass Characteristics in Feedlot Steers