Carcass characteristics and meat quality of lambs fed high concentrations of crude glycerin in low-starch diets

Carvalho, Vanessa Barbosa de; Leite, Rafael Fernandes; Almeida, Márco Túlio Costa; Paschoaloto, Josimari Regina; Carvalho, E.B.; Lanna, Dante Pazzanese Duarte; Perez, Henrique Leal; Cleef, E. H. C. B. Van; Homem, Antônio Carlos; Ezequiel, Jane Maria Bertocco

doi:10.1016/j.meatsci.2015.08.001

Cited by 46 publications

(37 citation statements)

References 45 publications

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“…Observing the result for loin-eye area, it was noted that the amount of edible portion of the carcasses remained similar between the treatments. Carvalho et al (2015) also found that carcass weight decreased as CG was included in the diet (up to 30 g 100 g -1 DM) and that loin-eye area was not altered. For Aberle et al (2001), the ultimate pH in the muscle of animals not subjected to starvation or exercise prior to slaughter is below 5.7.…”

Section: Discussionmentioning

confidence: 77%

Performance and carcass characteristics of goats fed crude glycerin in the feedlot and during pre-slaughter lairage

et al. 2018

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-This study evaluated the effects of crude glycerin (CG) supplied separately from the other dietary ingredients to goats during the feedlot and in the pre-slaughter lairage on the nutrient intake, performance, behavioral and physiological parameters, carcass characteristics, and meat quality. Twenty-eight uncastrated male goats from a cross between the Boer breed and mixed-breed goats were used in a completely randomized design in a 2 × 2 factorial scheme, consisting of the feedlot with or without CG inclusion in the diets (96.90 g kg -1 DM) and the pre-slaughter lairage, also with or without the ingredient. In the feedlot, goats fed CG had a lower intake of dry matter and nutrients. Crude glycerin intake reduced the weight gain and body weight of goats and increased feed conversion. Weights of carcass and cuts (leg, loin, ribs, and shoulder) were lower when the animals consumed CG in the feedlot. In pre-slaughter lairage, concentrations of cortisol were lower when the animals consumed CG. Characteristics of carcass and meat (pH, color, water holding capacity, cooking loss, and shear force) were not changed by the supply of CG during the pre-slaughter. When supplied during the feedlot period and separately from the other dietary ingredients, CG negatively affected the performance and carcass characteristics of goats without changing meat quality. In the pre-slaughter lairage, CG intake lowers the cortisol level and does not change the behavioral parameters or carcass and meat characteristics of goats.

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Section: Discussionmentioning

confidence: 77%

Performance and carcass characteristics of goats fed crude glycerin in the feedlot and during pre-slaughter lairage

et al. 2018

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“…Crude glycerine is a by‐product from the biodiesel industry used as an alternative energy source in animal diets, mainly as a replacement for corn grain. Promising results were reported for the inclusion of up to 20% DM in diets for ruminants without affecting animal health and performance (Almeida et al, ; Carvalho et al, ; van Cleef et al, ; Paschoaloto et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Promising results were reported for the inclusion of up to 20% DM in diets for ruminants without affecting animal health and performance (Almeida et al, 2018;Carvalho et al, 2015;van Cleef et al, 2015;Paschoaloto et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Effect of adding crude glycerine to diets with feed additives on the feed intake, ruminal degradability, volatile fatty acid concentrations and in vitro gas production of feedlot Nellore cattle

Almeida

Paschoaloto

Perez

et al. 2019

Animal Physiology Nutrition

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The effects of adding crude glycerine with sodium monensin or essential oils to beef cattle diets on the intake, degradability of DM and nutrients, rumen concentration of volatile fatty acids (VFA) and in vitro gas production were evaluated. Five ruminally cannulated Nellore steers were randomly assigned to a 5 × 5 Latin square design. The treatments were as follows: CONT, without crude glycerine and additives; EO, with essential oils and without crude glycerine; MON, with sodium monensin and without crude glycerine; EOG, with essential oils and crude glycerine; MONG, with sodium monensin and crude glycerine. Treatments with essential oil and sodium monensin increased the NDF and STC intake and the DM degradability. When crude glycerine was combined with either sodium monensin or essential oil, there was a reduction in DM, NDF and STC intake and an increase in DM and CP degradability of the diets. The adding crude glycerine to essential oil diets reduced the CH4 production. Sodium monensin treatments reduced DM and NDF intake and the production of total gas, CH4, total VFA and acetic acid concentration. In conclusion, the adding crude glycerine (200 g/kg DM) with either sodium monensin (0.03 g/kg DM) or essential oil (0.5 g/kg DM) can be utilized in diets for Nellore cattle without causing detrimental effects on feed intake and improving the DM degradability.

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“…Crude glycerin is a by-product of the biodiesel industry widely used in diets for ruminants, as it has great potential for replacing energetic ingredients, such as corn grain [3 – 4 – 5]. The glycerol (main constituent of crude glycerin) can be converted to glucose by the liver and kidneys to provide energy for cellular metabolism.…”

Section: Introductionmentioning

confidence: 99%

“…In ruminants, the glycerol is fermented in the rumen into short chain fatty acids, mainly to propionic and butyric [6]. Recent studies have demonstrated that the inclusion of this by-product has effects on carcass grade [4 – 7], increases the intramuscular fat and oleic acid content [8], decreases myristic, palmitic and stearic acids in Longissimus muscle [9], increases the monounsaturated fatty acid (MUFA) content and conjugated linoleic acid content [10], decreases saturated fatty acid and increases unsaturated and odd-chain fatty acid contents [4]. However, in other studies the effects of crude glycerin on carcass and meat traits were neglected [11 – 12 – 13].…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary inclusion of high concentrations of crude glycerin on meat quality and fatty acid profile of feedlot fed Nellore bulls

et al. 2017

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Crude glycerin, the main by-product of biodiesel production, can replace dietary energy sources, such as corn. The objective of this study was to evaluate the inclusion of up to 30% of crude glycerin in dry matter (DM) of the total diets, and its effects on meat quality parameters of feedlot Nellore bulls. Thirty animals (227.7 ± 23.8 kg body weight; 18 months old) were housed in individual pens and fed 5 experimental diets, containing 0, 7.5, 15, 22.5 or 30% crude glycerin (DM basis). After 103 d (21 d adaptation) animals were slaughtered and the Longissimus muscle was collected. The characteristics assessed were chemical composition, fatty acid profile, cholesterol, shear force, pH, color, water-holding capacity, cooking loss and sensory properties. The increasing inclusion of crude glycerin in the diets did not affect the chemical composition of the Longissimus muscle (P > 0.10). A quadratic effect was observed when levels of crude glycerin were increased, on the concentration of pentadecanoic, palmitoleic and eicosenoic fatty acids in meat (P < 0.05), and on the activity of the delta-9 desaturase 16 and delta-9 desaturase 18 enzymes (P < 0.05). The addition of crude glycerin increased the gamma linolenic fatty acid concentration (P < 0.01), and altered the monounsaturated fatty acids in Longissimus muscle of animals (Pquad. < 0.05). Crude glycerin decreased cholesterol content in meat (P < 0.05), and promoted higher flavor score and greasy intensity perception of the meat (P < 0.01). The inclusion of up to 30% crude glycerin in Nellore cattle bulls`diets (DM basis) improves meat cholesterol and sensory attributes, such as flavor, without affecting significantly the physical traits, the main fatty acid concentrations and the chemical composition.

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Carcass characteristics and meat quality of lambs fed high concentrations of crude glycerin in low-starch diets

Cited by 46 publications

References 45 publications

Performance and carcass characteristics of goats fed crude glycerin in the feedlot and during pre-slaughter lairage

Performance and carcass characteristics of goats fed crude glycerin in the feedlot and during pre-slaughter lairage

Effect of adding crude glycerine to diets with feed additives on the feed intake, ruminal degradability, volatile fatty acid concentrations and in vitro gas production of feedlot Nellore cattle

Effects of dietary inclusion of high concentrations of crude glycerin on meat quality and fatty acid profile of feedlot fed Nellore bulls

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