Digestion of feed fractions and intake of heifers fed hydrolyzed sugarcane stored for different periods

Missio, Régis Luís; Oliveira, Mauro Dal Secco de; Sforcini, Mariana Paula Rossi; Rennó, Francisco Palma; Júnior, José Esler de Freitas; Elejade, Denise Adelaide Gomes; Ferrari, Viviane Borba; Abud, Guilherme de Carvalho

doi:10.1590/s1516-35982012000700025

Cited by 7 publications

(4 citation statements)

References 18 publications

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“…Meanwhile, the protein digestibility, which decreased, may be related to the increase in the intake of smaller particles through the supply of energetic-protein supplements. The increase in the intake level can accelerate the passage rate, which means a shorter residence time of particles in the rumen, reducing the digestibility of the diet, as suggested by Missio et al (2012). In addition, according to Kunkle et al (2000), the extra-salt in supplements can increase water consumption and may result in increased ruminal protein passage and escape rates.…”

Section: Discussionmentioning

confidence: 99%

Self-fed Supplements of Low and Medium Intake for Beef Steers Finished on Pasture

Souza

Missio

Paris

et al. 2021

Preprint

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The obstacles of using supplementation are related to the cost and labor. Self-fed supplements of low and medium intake can be an option to overcome these problems. However, the nutritive value and pasture yield are crucial to finding the right composition and amount of supplement. We evaluated productive responses of steers receiving self-fed supplements of low and medium intake on Aruana grass pasture. The animal performance, ingestive behavior, and pasture characteristics were evaluated in a completely randomized design with three treatments and three replicates. Twenty-four Aberdeen Angus steers were used as the tester animals. The dry matter intake and nutrient digestibility were evaluated in a 3 x 3 double Latin square repeated over time. The treatments consisted of mineral salt (control), supplementation for intake of 1.5 g/kg body weight (low-intake), and supplementation for intake of 4.0 g/kg body weight (medium-intake). The supplements did not influence the pasture characteristics and ingestive behavior, except the number of bites/day that was higher for the low-intake. Dry matter digestibility and forage intake were not affected by the supplementation, but the total dry matter intake increased for the medium-intake. The average daily gain, stocking rate, and fat thickness gain were higher for the medium-intake. The self-fed supplements of medium-intake increase the total dry matter intake, maximizing the performance of steers on Aruana grass.

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Section: Discussionmentioning

confidence: 99%

Self-fed Supplements of Low and Medium Intake for Beef Steers Finished on Pasture

Souza

Missio

Paris

et al. 2021

Preprint

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“…Additionally, the lack of variation in dry matter intake also explains the similar digestibility coefficients of dry matter, crude protein, and ether extract of the diets. The elevation of the intake level, in this regard, can increase the passage rate, reducing the permanence time of the particles in the reticulorumen and the digestibility of the feeds, as stressed by Missio et al (2012). The reduction in intake, however, can cause the opposite effect, increasing the permanence time of the digesta in the reticulorumen and the digestibility of the diets (Oba and Allen, 1999).…”

Section: Discussionmentioning

confidence: 99%

Crude glycerin levels in pearl millet-based diets for Nellore young bulls in feedlot

et al. 2016

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-The objective of this study was to find the best level of inclusion of crude glycerin (0, 60, 120, and 240 g kg −1 of dry matter of diet) in substitution of pearl millet in a feedlot diet. Twenty-eight Nellore young bulls with mean age of 18 months and average weight of 357±23.56 kg were used. The animals were distributed in a completely randomized design with four treatments and seven replications. The intakes of dry matter, crude protein, neutral detergent fiber, and total digestible nutrients were similar among the dietary levels of crude glycerin. The ether extract intake decreased with increase in the levels of crude glycerol in the diets. Apparent digestibility of dry matter, crude protein, and extract ether was similar among the dietary crude glycerin levels. Apparent digestibility of neutral detergent fiber was lower in the diets with inclusion of crude glycerin in relation the other diets. The increase in the levels of crude glycerin did not affect the total digestible nutrients content of the diets. Average daily gain increased linearly with the increase in crude glycerin. Feed conversion was not altered by the increase in the levels of crude glycerin in the diets. The dietary increase in crude glycerin level did not affect the carcass characteristics. The inclusion of up to 240 g kg −1 of crude glycerin in pearl millet grain-based diets for feedlot-finished Nellore young bulls increases average daily gain, but does not change the main carcass characteristics of economic importance.

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“…The effect of alkalinizing agents, such as sodium hydroxide (NaOH), calcium hydroxide (Ca(OH) 2 ) and, more recently, calcium oxide (CaO), on the digestibility of the fibrous fraction of sugarcane has been evaluated in studies conducted in vitro (MOTA et al, 2010;DOMINGUES et al, 2015) and in vivo in cattle (EZEQUIEL et al, 2005;MORAES et al, 2008;PINA et al, 2010;CAMPOS et al, 2011;FREITAS et al, 2011;PINA et al, 2011;MISSIO et al, 2012;DANIEL et al, 2013). In theory, these alkalis promote the breakdown of the cell wall and the partial solubilization of the hemicelluloses, lignin and silica, through the hydrolysis of uronic esters and acetic acid and the swelling of cellulose (JACKSON, 1977).…”

Section: Introductionmentioning

confidence: 99%

“…The results of pH and ammonia N concentration in the rumen of cattle were presented in studies performed with sugarcane hydrolyzed with calcium hydroxide (DIAS et al, 2012;MISSIO et al, 2012) or calcium oxide (MORAES et al, 2008;PINA et al, 2010;SILVA JÚNIOR, 2013). However, VFA concentrations in the rumen of cattle fed hydrolyzed sugarcane-based diets were evaluated only in the studies of Dias et al (2012) and Silva Júnior (2013), which were carried out using calcium hydroxide and CaO as alkalizing agents, respectively.…”

Section: Introductionmentioning

confidence: 99%

Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide

Lopes

Campos

Borges

et al. 2018

SCA

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Nine non-lactating Holstein x Gyr cattle were fed with rations based on chopped sugarcane supplied in natura (control) or hydrolyzed (fresh matter basis) for 24 h with 1% or 2% calcium oxide (CaO), which corresponds to 3.1% or 6.2% CaO on a dry matter (DM) basis, respectively. Ruminal parameters (pH and ammonia N, acetate, propionate and butyrate concentrations) as well as the kinetics of fluid and particulate passage in the gastrointestinal tract from cattle were evaluated. A design using three 3 x 3 contemporaneous Latin Squares (LS) was adopted. The studies of kinetics of fluid and particulate passage were performed using the external markers cobalt-EDTA and chromium-mordanted-NDF, respectively. The ruminal parameters were analyzed according to a 3 x 3 LS replicated three times with repeated measures in time using mixed models that included the fixed effects of treatment (level of CaO), time of sampling and their interaction and the following random effects: LS, animal(LS), period of LS and period*animal (LS). The kinetic parameters of fluid and particulate passage were analyzed using mixed models with treatment as a fixed effect and period of LS, animal(LS) and LS as random effects. The linear and quadratic effects of the treatments were analyzed using orthogonal contrasts. Significant differences were declared at P ? 0.05. No treatment*time interaction was observed (P > 0.05) for any ruminal parameter. A linear effect (P = 0.0279) of CaO inclusion on ruminal pH was observed, but there were no effects (P > 0.05) of the treatments on the ammonia N, acetate, butyrate and total volatile fatty acid ruminal concentrations. There was a quadratic effect (P = 0.05) of the addition of CaO on the ruminal propionate concentration. There was no effect (P > 0.05) of the treatments on the particulate rate of passage in the rumen as well as on the mean retention time in this compartment and in the total gastrointestinal tract. On the other hand, the addition of CaO to sugarcane promoted a linear increase (P = 0.0258) in the particulate post-ruminal passage rate and, consequently, a linear reduction (P = 0.0363) of the mean retention time in the cecum-proximal colon. There was no effect (P > 0.05) of the sugarcane hydrolysis with CaO on the ruminal parameters of the kinetics of fluid passage (dilution rate, retention time and turnover rate). The addition of 3.1% or 6.2% CaO on a DM basis (1% or 2% CaO on a fresh matter basis, respectively) of sugarcane does not improve ruminal fermentation, nor does it increase the fluid or particulate passage in the rumen of non-lactating Holstein x Gyr cattle.

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Digestion of feed fractions and intake of heifers fed hydrolyzed sugarcane stored for different periods

Cited by 7 publications

References 18 publications

Self-fed Supplements of Low and Medium Intake for Beef Steers Finished on Pasture

Self-fed Supplements of Low and Medium Intake for Beef Steers Finished on Pasture

Crude glycerin levels in pearl millet-based diets for Nellore young bulls in feedlot

Rumen parameters and passage rate in cattle fed diets based on sugarcane hydrolyzed with calcium oxide

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