Crude glycerin in diets for feedlot Nellore cattle

Cleef, E. H. C. B. Van; Ezequiel, Jane Maria Bertocco; D’Áurea, André Pastori; Fávaro, Vanessa Ruiz; Sancanari, Juliana Borsari Dourado

doi:10.1590/s1516-35982014000200006

Cited by 33 publications

(30 citation statements)

References 21 publications

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“…Similar results were obtained by Mach et al (2009) for the SFT values (3.65, 3.86, 4.10, and 3.73 mm) on the carcasses of Friesian steers fed diets containing 0, 40, 80, and 120 g kg -1 crude glycerin, respectively. The results of this study for physical composition of the carcass were similar to those observed in previous experiments that assessed the inclusion of crude glycerin in diet of cattle and did not observe difference in tissue deposition in the carcass (Leão, 2011;Bartoñ et al, 2013;Van Cleef et al, 2014).…”

Section: Discussionsupporting

confidence: 89%

“…Currently, with the expansion of the biodiesel industry, crude glycerin has raised interest because of its availability and potential as an energetic ingredient in ruminant feed (Parsons et al, 2009;Mach et al, 2009;Van Cleef et al, 2014). The conversion of triglycerides into methyl esters in the transesterification process, approximately 100 g kg -1 of the weight of the oil going into the process, will end up with crude glycerin as a byproduct at the completion of the reaction (Plá, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Performance and carcass characteristics of dairy steers fed diets containing crude glycerin

et al. 2016

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-The objective of the study was to assess the effects of including 0, 79.8, 159.8, and 240.0 g kg -1 crude glycerin in the total diet dry matter on the 84 days feedlot performance, nutrient digestibility, blood parameters, and carcass characteristics of crossbred dairy steers. Experimental diets were composed of 98.5 g kg -1 of sorghum silage and 901.5 g kg -1of concentrate. Twenty-four crossbred dairy steers (337.3±39.8 kg body weight and 15 months of age) were distributed in a completely randomized design with four treatments and six replicates. The intake and digestibility of the dry matter and nutrients were not altered by including crude glycerin in the diet. Crude glycerol levels did not affect the final weight (430.2 kg), daily weight gain (1.38 kg day -1 ), total weight gain (97.2 kg), hot carcass weight (218.9 kg), cold carcass weight (215.2 kg), hot carcass yield (0.50 kg 100 kg -1 BW), longissimus dorsi area (62.86 cm²), subcutaneous fat thickness (4.05 mm), and carcass physical composition. Concentrations of serum glucose, triglycerides, total cholesterol, high-density lipoprotein cholesterol, and creatinine were not altered by including crude glycerin in the diet. Crude glycerin can be added to high concentrate diet up to 240 g kg -1 without changing the animal performance, apparent digestibility of nutrients, the main carcass characteristics, and blood parameters of finishing crossbred dairy steers.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Performance and carcass characteristics of dairy steers fed diets containing crude glycerin

et al. 2016

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“…However, other studies reported no effect of crude glycerin on weight gain and/or feed efficiency even when animals were fed up to 30% crude glycerin (van Cleef et al, 2014). In the present study, the addition of up to 15% crude glycerin in the diets, regardless the carbohydrate source used, did not affect animal performance.…”

Section: Resultscontrasting

confidence: 68%

Carcass traits and meat quality of Nellore cattle fed different non-fiber carbohydrates sources associated with crude glycerin

Fávaro

Almeida

D’Áurea

et al. 2016

Animal

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Crude glycerin, a potential energy source for ruminant animals, has been evaluated, mainly, in diets with high starch content. However, a limit number of studies have evaluated the inclusion of crude glycerin in low starch diets. This study aimed to evaluate the effects of the association of crude glycerin with corn grain or citrus pulp on carcass traits and meat quality of Nellore bulls ( n = 30, 402 ± 31 kg initial weight). The treatment consisted of: CON = control, without crude glycerin; CG10 = 10% of crude glycerin and corn grain; CG15 = 15% of crude glycerin and corn grain; CP10 = 10% of crude glycerin and citrus pulp; CP15 = 15% of crude glycerin and citrus pulp. The performance parameters and carcass traits were not affected by treatments ( P > 0.05). The inclusion of crude glycerin decreased yellow color intensity and increased fatty acids pentadecanoic and heptadecenoic in meat ( P < 0.05), without affecting neither the concentration of polyunsaturated fatty acids nor the relationship of saturated and unsaturated fatty acids. The association of crude glycerin with corn or citrus pulp has no adverse effects on carcass characteristics and meat quality.

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“…Regarding carcass traits or chemical composition of the R. Bras. Zootec., 45(6): [309][310][311][312][313][314][315][316][317][318]2016 longissimus lumborum area, no significant effects were reported when crude glycerin was included at 300 g kg −1 DM in the finishing diet of steers (Mach et al, 2009;Bartoň et al, 2013;Van Cleef et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Performance, rumen development, and carcass traits of male calves fed starter concentrate with crude glycerin

et al. 2016

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-The objective of this study was to assess the effects of including crude glycerin in the diet on intake, performance, rumen development, and carcass traits of dairy crossbred veal calves fed starter concentrate containing 0, 80, 160, and 240 g kg −1 crude glycerin. Twenty-eight calves with an average weight of 38.03±6.7 kg and five days of age were distributed in a completely randomized design with four treatments with seven replications. Calves were individually housed in covered stalls equipped with feeders and drinkers for 56 days. The calf response to inclusion of crude glycerin in the concentrate changed over the weeks and the inclusion level of 240 g kg −1 resulted in greater dry matter intake and average daily gain. There was no effect on the final weight and total weight gain of the animals, with mean values of 73.60 and 35.16 kg, respectively. The weight of the rumen-reticulum adjusted for body weight, empty body weight, and total stomach weight increased linearly with the inclusion of crude glycerin. Blood total protein, globulin, urea, cholesterol, gamma glutamyl transferase, aspartate aminotransferase, and alkaline phosphatase concentrations did not differ among treatments. Carcass traits and meat color were not affected. Crude glycerin can be added to dairy calf starter concentrate up to 240 g kg −1 dry matter because it benefits concentrate intake, performance, and rumen development without affecting animal health.

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Crude glycerin in diets for feedlot Nellore cattle

Cited by 33 publications

References 21 publications

Performance and carcass characteristics of dairy steers fed diets containing crude glycerin

Performance and carcass characteristics of dairy steers fed diets containing crude glycerin

Carcass traits and meat quality of Nellore cattle fed different non-fiber carbohydrates sources associated with crude glycerin

Performance, rumen development, and carcass traits of male calves fed starter concentrate with crude glycerin

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