&lt;b&gt;Glycerin and essential oils in the diet of Nellore bulls finished in feedlot: animal performance and apparent digestibility

Silva, Lorrayny Galoro da; Torrecilhas, Juliana Akamine; Ornaghi, Mariana Garcia; Eiras, Carlos Emanuel; Prado, Rodolpho Martin do; Prado, Ivanor Nunes do

doi:10.4025/actascianimsci.v36i2.23089

Cited by 16 publications

(13 citation statements)

References 42 publications

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“…The iDM was estimated using the difference in sample weight before and after ruminal incubation. Fecal excretion was calculated using the following equations: FE = iDMI / iDMCF, where: FE = fecal excretion (kg day-1 intake (kg day-1 matter concentration in faeces (kg day-1), iDMI = indigestible dry matter) and iDMCF = indigestible dry) as described by Silva et al (2014).…”

Section: Chemical Analysismentioning

confidence: 99%

Propolis extract in the diet of crossbred (½ Angus vs. ½ Nellore) bulls finished in feedlot: animal performance, feed efficiency and carcass characteristics

et al. 2015

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Current research studied the replacement of monensin by propolis on performance, feed efficiency and carcass characteristic of bulls finished in feedlot. The bulls, kept in feedlot for 70 days, were allocated in three diets: Control (CON), Monensin (MON) and Propolis (PRO). They were fed on corn silage, cracked corn, soybean meal, urea, limestone and mineral salt. Further, 250 mg monensin and 35 g propolis/bulls/day were included respectively in the MON and PRO diets. Animal performance and carcass characteristics were similar (P>0.05) among diets. Feed intake was higher (P<0.05) for bulls fed on CON (9.17 kg/day) and PRO (9.31 kg/day) diets. Dry, organic matter and carbohydrates digestibility was similar (P<0.05) among the three diets. Protein digestibility was lower (P<0.05) for bulls fed on CON (55.3%) diet and similar for MON (62.3%) and PRO (59.8%) diets. Ether extract digestibility was higher (P<0.05) for bulls fed on PRO (84.6%) diet and lower for bulls fed on CON (73.4%) diet, with MON (80.7%) diet as intermediate. The addition of monensin or propolis did not affect (P>0.05) urinary excretion, microbial synthesis and carcass characteristics.

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Section: Chemical Analysismentioning

confidence: 99%

Propolis extract in the diet of crossbred (½ Angus vs. ½ Nellore) bulls finished in feedlot: animal performance, feed efficiency and carcass characteristics

et al. 2015

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“…Studies aimed at characterizing the ruminal metabolism of these byproducts are needed to identify potential byproducts that could be used efficiently in the diet of ruminants to replace conventional ingredients (Cruz et al, 2014;Hulshof et al, 2012;Moreira et al, 2014;Silva et al, 2014). Among these byproducts, glycerin, which is obtained in the transesterification process from oil to biodiesel in the crude form, is an alternative (Cruz et al, 2014;Farias et al, 2012;Martínez-Fernández et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

<b><i>In vitro</i> degradation and gas production of glycerin generated in the biodiesel production chain

Silva

Bezerra

Silva

et al. 2015

Acta Sci. Anim. Sci.

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ABSTRACT. This study was realized to evaluate the production of gas and volatile fatty acids when glycerin was used to replace four forage species through the use of a semi-automated technique in vitro. The experimental design included 4 treatments and 4 replications. The treatments consisted of increasing levels of glycerin (0, 30, 50 and 70%), which was used to replace the forage plants Elephant grass, sugar cane silage, corn silage and Brachiaria grass. Replacement of the Brachiaria and Elephant grasses with glycerin linearly reduced the production of methane and carbon dioxide and ammonia nitrogen and had a positive effect on forage quality (p < 0.05). With the addition of glycerin, the values for acetate concentration decreased (p < 0.05); however, when added glycerin there was increased in propionic and butyric acid concentration (p < 0.05). Substitution of forage species for glycerin by tests for semi-automatic technique in vitro reduce the production of greenhouse gases (CH 4 and CO 2 ) which reduction in energy loss, and increase volatile fatty acids propionic and butyric.Keywords: acetate, butyrate, N-NH 3 , propionate, VFAs.Degradação e produção de gases in vitro de glicerina da cadeia produtiva do biodiesel RESUMO. Este estudo foi realizado para avaliar a produção de gás e ácidos graxos voláteis da glicerina em substituição à quatro espécies forrageiras pela técnica semi-automática in vitro. O delineamento experimental incluiu 4 tratamentos e 4 repetições. Os tratamentos consistiram em níveis crescentes de glicerina (0, 30, 50 e 70%), em substituição às forrageiras capim Elefante, cana-de-açúcar, silagem de milho e Braquiária. A substituição das gramíneas forrageiras capim Brachiaria e capim Elefante pela glicerina afetou a produção de metano, dióxido de carbono e nitrogênio amoniacal e teve um efeito positivo sobre a qualidade da forragem (p < 0,05). Com a adição de glicerina, os valores da concentração de acetato reduziram (p < 0,05). Todavia, a adição de glicerina aumentou as concentrações de ácido propiônico e butírico (p < 0,05). A substituição de espécies forrageira pela glicerina através da técnica semiautomática in vitro reduz a produção de gases de efeito estufa (CH 4 e CO 2 ) que diminuirá a perda de energia e eleva os ácidos graxos voláteis propiônico e butírico.Palavras-chave: acetato, butirato, N-NH 3 , propionato, AGVs.

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“…Indigestible neutral detergent fiber (iNDF) was used to estimate fecal production according to Cochran, Adams, Wallace, & Galyean (1986) and validated by Silva et al (2014) for Brazilian feedlot diets. The concentrations of iNDF in the fecal samples, roughage, concentrate, and refusals were obtained with the methodology of in situ incubation (288 h) as recommended by Valente et al (2011), with extraction of the NDF according to Van Soest et al (1991).…”

Section: Methodsmentioning

confidence: 99%

Phosphorus supplementation does not affect the intake, digestibility, and meat quality of Nellore young bulls fed with high-grain diets

Lima

Souza

Messana

et al. 2020

Acta Sci. Anim. Sci.

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This study evaluated the effect of phosphorus (P) supplementation on the intake, digestibility, and quality of aged meat from Nellore young bulls fed on high-grain diets finished in feedlot. Forty young bulls (30 months old) with an initial body weight (IBW) of 296 ± 25 kg were used. It was distributed in a completely randomized experimental design. The treatments were: without P supplementation (CO), commercial mineral supplement (CM), and supplementation with dicalcium phosphate (DP) with 2.4, 4.2, or 5.0 g of P per kg of dry matter (DM), respectively. Diets were composed of sugarcane bagasse (200 g kg-1) plus concentrate (800 g kg-1) on a dry matter (DM) basis. The meat quality parameters analyzed were pH, color, cooking losses, shear force, and water-holding capacity. P supplementation did not affect the intake and digestibility of nutrients There was no interaction (p > 0.05%) between diets and the aging time for the meat quality parameters. However, bulls fed with DP exhibited lower pH (5.98) compared to CO and CM (6.19 and 6.14, respectively). The longer aging time increased the cooking losses and intensity of yellow (b*). Under Brazilian conditions, feedlot Nellore cattle fed with high-grain diets do not require additional mineral supplements.

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<b>Glycerin and essential oils in the diet of Nellore bulls finished in feedlot: animal performance and apparent digestibility

Cited by 16 publications

References 42 publications

Propolis extract in the diet of crossbred (½ Angus vs. ½ Nellore) bulls finished in feedlot: animal performance, feed efficiency and carcass characteristics

Propolis extract in the diet of crossbred (½ Angus vs. ½ Nellore) bulls finished in feedlot: animal performance, feed efficiency and carcass characteristics

<b><i>In vitro</i> degradation and gas production of glycerin generated in the biodiesel production chain

Phosphorus supplementation does not affect the intake, digestibility, and meat quality of Nellore young bulls fed with high-grain diets

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