Evaluation of a phase-feeding strategy utilizing high-lipid high-fibre byproduct pellets in diets for feedlot steers

Joy, Faustin; Górka, P.; McKinnon, J. J.; Hendrick, S.; Burciaga-Robles, L. O.; Penner, G.B.

doi:10.1139/cjas-2015-0152

Cited by 8 publications

(7 citation statements)

References 21 publications

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“…Despite the tendency for improved ruminal pH observed in the current study and that of Górka et al (2015) when using HLHFP as a partial substitute for barley grain, we observed that HLHFP reduced G:F. Therefore, reducing fermentable carbohydrates by increasing lipids and fiber from byproducts as a strategy to reduce risk for ruminal acidosis is not likely to improve G:F. Diet digestibility contributes toward efficient feed conversion, and the current study supports past research demonstrating that the use of HLHFP results in a marked decrease in apparent total tract OM digestibility compared with barley-fed cattle (Górka et al, 2015). The reasons for decreased digestibility with the HLHFP diet are not known, but it is likely that the use of oat hulls within the pellet (Thompson et al, 2000), greater ether extract content (Jenkins, 1993;Hess et al, 2008), and small particle size of ingredients (Abouheif et al, 2012) in the HLHFP or a combination of any of these factors (Joy et al, 2016) can be implicated.…”

Section: Effect Of Dietary Treatmentsupporting

confidence: 82%

“…Dietary treatments consisted of a barley grain and canola meal-based finishing diet (control [CON]) or a diet in which 55% of the barley grain and 100% of canola meal were replaced with a highlipid, high-fiber byproduct pellet (HLHFP; Table 1). The HLHFP was formulated using byproducts from the cereal grain and oilseed sectors and was similar to that used by Górka et al (2013Górka et al ( , 2015 and Joy et al (2016). Canola meal was used in the CON diet to balance the CP concentration between treatments, and limestone was added to adjust the Ca:P ratio.…”

Section: Dietary Treatments Feeding and Experimental Designmentioning

confidence: 99%

“…One of the reasons for the observed decrease in G:F in the late finishing stages of feedlot cattle (Joy et al, 2016;NASEM, 2016) may be in part due to ruminal acidosis (Castillo-Lopez et al, 2014). Despite the tendency for improved ruminal pH observed in the current study and that of Górka et al (2015) when using HLHFP as a partial substitute for barley grain, we observed that HLHFP reduced G:F. Therefore, reducing fermentable carbohydrates by increasing lipids and fiber from byproducts as a strategy to reduce risk for ruminal acidosis is not likely to improve G:F. Diet digestibility contributes toward efficient feed conversion, and the current study supports past research demonstrating that the use of HLHFP results in a marked decrease in apparent total tract OM digestibility compared with barley-fed cattle (Górka et al, 2015).…”

Section: Effect Of Dietary Treatmentmentioning

confidence: 99%

“…Moreover, with advancing days on feed, digestibility and insulin resistance increases without changes in ruminal pH and plasma metabolite clearance rates. variable, Górka et al (2013) and Joy et al (2016) demonstrated that high-lipid, high-fiber byproduct pellets can be a viable alternative to barley grain; however, a reduction in G:F has been observed.…”

Section: Introductionmentioning

confidence: 99%

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Effect of dietary energy substrate and days on feed on apparent total tract digestibility, ruminal short-chain fatty acid absorption, acetate and glucose clearance, and insulin responsiveness in finishing feedlot cattle1

Joy

McKinnon

Hendrick³

et al. 2017

Journal of Animal Science

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The objective of this study was to determine the effect of dietary energy substrate and days on feed on apparent total tract digestibility, ruminal fermentation, short-chain fatty acid (SCFA) absorption, plasma glucose and acetate clearance rates, and insulin responsiveness. Eight ruminally cannulated, crossbred growing heifers were randomly allocated to 1 of 2 dietary treatments. The control (CON) diet consisted of 75.2% barley grain, 9.8% canola meal, 9% mineral and vitamin supplement, and 6% barley silage (DM basis). To evaluate the effect of energy source, a high-lipid, high-fiber byproduct pellet (HLHFP) was included in the diet by replacing 55% of the barley grain and 100% of canola meal. The study consisted of 4 consecutive 40-d periods (P1 to P4), with data and sample collection occurring in the last 12 d of each period. Dry matter intake tended ( = 0.10) to decrease by period and HLHFP-fed heifers tended to eat less ( = 0.09). The ADG of the CON was greater than that of the HLHFP during P1 and P4 (treatment × period, = 0.02). Heifers fed HLHFP tended to have greater mean ruminal pH (6.10 vs. 5.96; = 0.07) than heifers fed the CON, but pH was not affected by period. The CON heifers had a greater digestibility for DM, OM, CP, and NDF ( ≤ 0.03), and the digestibility for DM and OM linearly increased ( = 0.01) and for CP, NDF, and starch quadratically increased ( ≤ 0.04) with advancing period. Total SCFA concentration in the rumen was greater ( < 0.01) for the CON than for the HLHFP (141.6 vs. 128.1 m). The molar proportion of acetate and isobutyrate linearly increased and butyrate and valerate linearly decreased ( ≤ 0.05) with advancing periods. The rate of valerate absorption tended to increase (linear, = 0.06) and the ruminal liquid passage rate tended to decrease (linear, = 0.08) with advancing period. The arterial clearance rate of acetate tended to quadratically increase ( = 0.06) with period, whereas the clearance rate of glucose was not affected by treatment or period. Both fasting plasma insulin and the area under the insulin curve in response to glucose infusion linearly increased ( = 0.04) with period. These data suggest that partially replacing barley grain with HLHFP negatively affects total tract digestibility and performance. Moreover, with advancing days on feed, digestibility and insulin resistance increases without changes in ruminal pH and plasma metabolite clearance rates.

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Section: Effect Of Dietary Treatmentsupporting

confidence: 82%

Section: Dietary Treatments Feeding and Experimental Designmentioning

confidence: 99%

Section: Effect Of Dietary Treatmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of dietary energy substrate and days on feed on apparent total tract digestibility, ruminal short-chain fatty acid absorption, acetate and glucose clearance, and insulin responsiveness in finishing feedlot cattle1

Joy

McKinnon

Hendrick³

et al. 2017

Journal of Animal Science

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“…Previous studies have demonstrated that feeding high-lipid byproduct-based pellets (HLP) can be an effective alternative as a partial replacement of barley grain (Joy et al 2016), or a combination of barley grain and canola meal (Górka et al 2013(Górka et al , 2015 in diets for finishing cattle. In fact, use of HLP did not affect ADG (Górka et al 2013), increased mean ruminal pH (Górka et al 2015;Joy et al 2017), and despite reducing feed conversion efficiency Joy et al 2017), may reduce the cost of gain in finishing diets.…”

Section: Introductionmentioning

confidence: 99%

Effect of dietary lipid inclusion from by-product-based pellets on dry matter intake, ruminal fermentation, and nutrient digestion in finishing beef heifers

et al. 2021

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This study was designed to evaluate dry matter intake (DMI), ruminal fermentation, ruminal digesta outflow, omasal flow of N constituents, and ruminal and total-tract digestibility in response to increasing dietary lipid content derived from high-lipid byproduct-based pellets for finishing beef cattle. Five ruminally cannulated heifers were used in a 5 × 5 Latin square design. Dietary treatments were iso-nitrogenous with increasing ether extract (EE) concentrations resulting in dietary concentrations of 3.5, 4.2, 4.7, 5.1 and 5.9% of dry matter. Periods were 28 d in duration with the first 19 d used for dietary adaptation and the last 9 d for sample and data collection. Dry matter intake, ruminal pH, omasal flow of N constituents, and SCFA concentrations were not affected by increasing dietary EE content (P ≥ 0.10). Increasing dietary EE content increased outflow of EE from the rumen (P < 0.001). Apparent ruminal and total-tract digestibility of EE increased linearly (P ≤ 0.03) with increasing dietary EE levels. Results indicate that increasing dietary EE content from 3.5 up to 5.9% of DM by including high-lipid byproduct-based pellets does not alter site of nutrient digestibility with no negative effects on nutrient intake, ruminal fermentation, or apparent ruminal and total-tract digestibility.

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Effect of feeding barley or corn silage with dry-rolled barley, corn, or a blend of barley and corn grain on rumen fermentation, total tract digestibility, and nitrogen balance for finishing beef heifers

Johnson

Sutherland

McKinnon

et al. 2020

Journal of Animal Science

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Five ruminally cannulated heifers were used in an incomplete 6 × 6 Latin square design to determine the effects of cereal silage (barley vs. corn), cereal grain (barley vs. corn vs. a 50:50 blend of barley and corn), and their interaction (S × G) on dry matter intake, ruminal fermentation, total tract digestibility, nitrogen balance, and in situ degradation. Corn silage (CS) or barley silage (BS) was included at 8% of dietary dry matter (DM). Within each silage source, diets contained (DM basis) either dry-rolled barley (BG; 86%), dry-rolled corn (CG; 85%), or an equal blend of barley and corn (BLEND; 85%). Periods were 25 d, with 5 d of dietary transition, 13 d of dietary adaptation, and 7 d of data and sample collection. Samples collected included feed and refusals, total urine and feces, and ruminal fluid. All data were analyzed using the Mixed model of SAS with the fixed effects of silage, grain, and the S × G. Dry matter intake (P ≥ 0.19) and mean ruminal pH (P ≥ 0.096) were not affected by the silage, grain, or S × G. Total short-chain fatty acid concentrations were greater for BLEND than BG or CG (grain, P = 0.003) and for CS (silage, P = 0.009) relative to BS. The molar proportion of acetate was greater for BS-BG and BS-CG (S × G, P < 0.001), while molar proportion of propionate was greater for CS-BG (S × G, P < 0.001) relative to other silage and grain source combinations. Rumen ammonia-N concentration was greater for CG than BG, or BLEND (grain, P < 0.001), and greater for CS compared to BS (silage, P = 0.023). Apparent total tract digestibility of DM, organic matter, neutral detergent fiber, starch, and gross energy were greatest for BG (grain, P ≤ 0.035). Digestible energy content (Mcal/kg) was greater for BG (grain, P = 0.029) than CG and BLEND. Total nitrogen retention (g/d and % of intake) was greatest for CS-BG (S × G, P ≤ 0.033) relative to all other treatments. In situ degradation rates of DM, crude protein, and starch were greater for BG than CG (P ≤ 0.004). The potentially degradable fraction of DM, crude protein, and starch was greater for CG (P ≤ 0.031), while the undegradable fraction was greater for BG (P ≤ 0.046). For silage sources, CS had greater 24 h in situ DM digestibility (P = 0.009) and starch digestibility (24, 48, and 72 h incubations, P ≤ 0.034) relative to BS. Results suggest that while feeding a combination of CS and BG promotes propionate production and greater N retention; few other additive effects were observed.

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Evaluation of a phase-feeding strategy utilizing high-lipid high-fibre byproduct pellets in diets for feedlot steers

Cited by 8 publications

References 21 publications

Effect of dietary energy substrate and days on feed on apparent total tract digestibility, ruminal short-chain fatty acid absorption, acetate and glucose clearance, and insulin responsiveness in finishing feedlot cattle1

Effect of dietary energy substrate and days on feed on apparent total tract digestibility, ruminal short-chain fatty acid absorption, acetate and glucose clearance, and insulin responsiveness in finishing feedlot cattle1

Effect of dietary lipid inclusion from by-product-based pellets on dry matter intake, ruminal fermentation, and nutrient digestion in finishing beef heifers

Effect of feeding barley or corn silage with dry-rolled barley, corn, or a blend of barley and corn grain on rumen fermentation, total tract digestibility, and nitrogen balance for finishing beef heifers

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