Glicerina bruta melhora o valor nutricional de silagem de milheto colhido em duas idades

Samantha Mariana Machado, Eleuza Clarete Junqueira de Sales, João Paulo Sampaio Rigueria, Daniel Ananias de Assis Pires, Ariadne Freitas Silva, Flávio Pinto Monção


The objective was to evaluate the best level of inclusion of crude glycerin in millet silage harvested at two cutting ages and its effects on the fermentation profile and nutritional value. The treatments consisted of the addition of glycerin during the ensilage millet (BRS 1502) in five inclusion doses in the natural material (0, 5, 10, 15 and 20%) and two cutting ages millet (60 and 80 days) following a completely randomized design in a 5 x 2 factorial scheme. The highest mean pH and ammoniacal nitrogen content of millet silage was observed in the control treatment at 80 days of age, with a mean of 3.33 (P = 0.02) and 6.09% of the total nitrogen (P <0.01), respectively. Millet silage harvested at 80 days and supplemented with 20% glycerin obtained higher dry matter content (P < 0.01; 28.3%), ethereal extract (P = 0.01; 8.5%), total digestible nutrients (P = 0.01; 76.8%) and digestible energy (P = 0.01; 3.4 Mcal/kg dry matter). Harvesting of the millet plant at 80 days associated with the use of 15% crude glycerin in the natural matter during silage improves the fermentation profile and the nutritional characteristics of the silage.


Aditivos; Bioprodutos; Composição química; Digestibilidade.

Texto completo:

PDF (English)


AOAC, Official Methods of Analysis of AOAC International, 16 ed. Association of Official Analytical Chemists, Arlington, 1995.

BOLSEN, K. K.; LIN, C.; BRENT, B. E. Effect of silage additives on the microbial succession and fermentation process of alfalfa and corn silages. Journal of Dairy Science, v. 75, n. 1, p.3066-3083, 1992.

CAMPOS, F. S.; CARVALHO, G. G. P.; SANTOS, E. M.; ARAÚJO, G. G. L; GOIS, G. C.; REBOUÇAS, R. A.; LEÃO, A. G.; SANTOS, S. A.; OLIVEIRA, J. S.; LEITE, L. C.; ARAÚJO, M. L. G. M. L.; CIRNE, L. G. A.; SILA, R. R.; CARVALHO, B. M. A. Influence of diets with silage fromforage plants adapted to the semi-arid conditions on lamb quality and sensory attributes. Meat Science, v. 24, n.1, p.61-68, 2016.

CASALI, A. O.; DETMANN, E.; VALADARES FILHO, S. C.; PEREIRA, J. C.; HENRIQUES, L. T.; FREITAS, S. G.; PAULINO, M. F. Influência do tempo de incubação e do tamanho de partículas sobre os teores de compostos indigestíveis em alimentos e fezes bovinas obtidos por procedimentos in situ. Revista Brasileira de Zootecnia, v.37, n.2, p.335-342, 2008.

CHANJULA, P.; PAKDEECHANUAN, P.; WATTANASIT, S. Effects of dietary crude glycerin supplementation on nutrient digestibility, ruminal fermentation, blood metabolites, and nitrogen balance of goats. Asian Australas Journal Animal Science, Seoul, v. 27, n. 3, p. 365-374, 2014.

DETMANN, E.; VALENTE, E. E. L.; HUHTANEN, P. An evaluation of the performance and efficiency of nitrogen utilization in cattle fed tropical grass pastures with supplementation. Livestock Science, v.162, n.1, p.141-153, 2014.

DIAS, A.M.; ÍTAVO, L.C.V.; ÍTAVO, C.C.B.F.; BLAN, L.R.; GOMES, E.N.O.; SOARES, C.M.; LEAL, E.S.; NOGUEIRA, COELHO, E.M. Ureia e glicerina bruta como aditivos na ensilagem de cana-de-açúcar. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, v.66, n.1, p.1874-1882, 2014.

FERRARETTO, L.F.; SHAVER, R.D.; LUCK, B.D. Silage review: Recent advances and future technologies for whole-plant and fractionated corn

silage harvesting. Journal of Dairy Science, v. 101, p.3937–3951, 2018.

KERR, B. J.; WEBER, T. E.; DOZI, W. A.; KIDD, M. T. Digestible and metabolizable energy content of crude glycerin originating from different sources in nursery pigs. Journal of Animal Science, v. 87, p. 4042-4049, 2009.

LAGE, J. F.; PAULINO, P. V. R.; PEREIRA, L. G. R.; VALADARES FILHO, S. C.; OLIVEIRA, A. S.; DETMANN, E.; SOUZA, N. K. P.; Glicerina bruta na dieta de cordeiros terminados em confinamento. Pesquisa Agropecúaria Brasileira, v.45, n.9, p.1012-1020, 2010.

LEE, S. Y.; LEE, S. M.; CHO, Y. B.; KAM, D. K.; LEE, S. C., KIM, S. H.; SEO, S. Glycerol as a feed supplement for ruminants: In vitro fermentation characteristics and methane production. Animal Feed Science and Technology, v.166–167, p. 269– 274, 2011.

MCDONALD, P.; HENDERSON, A. R.; HERON, S. J. E. The biochemistry of silage. 2th ed. Marlow: Chalcomb Publisher, 1991. 340 p.

MOURA, M. M. A.; PIRES, D. A. A.; COSTA, R. F.; TOLENTINO, D. C.; RIGUEIRA, J. P. S.; SALES, E. C. J. Nutritional value of sorghum silages. Acta Scientarium Animal Sciences, v. 39, n. 1, p. 137-142, 2017.

NUNES, A. T.; CABRAL, D. L. V.; AMORIM, E. L. C.; SANTOS, M. V. F.; ALBUQUERQUE, U. P. Plants used to feed ruminants in semi-arid Brazil: A study of nutritional composition guided by local ecological knowledge. Journal of Arid Environments, v.135, n.1, p.96-103, 2016.

OLIVEIRA FILHO, C. A. A.; AZEVÊDO, J. A. G.; CARVALHO, G. G. P.; SILVA, C. F. P. G.; CABRAL, I. S.; PEREIRA, L. G. R.; REIS, L. G.; ALMEIDA, F. M.; SOUZA, L. L. Crude glycerin combined with sugar cane silage in lamb diets.Tropical Animal health and production, v.48, n.2, p.289-295, 2016.

PAIVA, P. G.; DEL VALLE, T. A.; JESUS, E. F.; BETTERO, V. P.; ALMEIDA, G. F.; BUENO, I. C. S.; BRADFORD, B. J.; RENNÓ, F. P.Effects of crude glycerin on milk composition, nutrient digestibility and ruminal fermentation of dairy cows fed corn silage-based diets. Animal Feed Science and Technology, v.212, n.1, p.136-142, 2016.

PALMQUIST, D. L., JENKINS, T. C. Fat in lactation rations: review. Journal of Dairy Science, v.63, n.1, p.1‑14, 1980.

RUPPEL, K. A.; PITT, R. E.; CHASE, L. E.; GALTON, D. M. Bunker silo management and its relationship to forage preservation on dairy farms.

Journal of Dairy Science, v. 78, n. 1, p. 141-153, 1995.


MACDONALD, T. J. KLOPFENSTEIN, AND G. E. ERICKSON. 2016. Effect of corn plant maturity on yield and nutrient quality of corn plants, 2-year summary. Nebraska Beef Cattle Rep. MP103: 79–80. University of Nebraska, Lincoln.

SANVITO, E.; MESSANA, J. D.; CASTAGNINO, P. S.; GRANJA-SALCEDO, Y. T.; DALLANTONIA, E. E.; BERCHIELLI, T. T. Effect of crude glycerine in supplementon the intake, rumen fermentation, and microbial profile of Nellore steers grazing tropical grass. Livestock Science,v.192, p.17-24, 2016.

SNIFFEN, C. J.; O‘CONNOR, J. D.; VAN SOEST, P.J. A net carboidrate and protein system for evaluating cattle diets. II. Carboidrate and protein availability. Journal of Animal Science, v.70, n.11, p.3562-3577, 1992.

VAN SOEST, P.J.; ROBERTSON, J.B.; LEWIS, B.A. Methods for dietary À ber neutral detergent and nonstarch polysaccharides in relation to animal nutrition. Journal of Dairy Science, v. 74, p. 3583-3597, 1991.

WEISS, W.P. Estimating the available energy content of feeds for dairy cattle. Journal of Dairy Science, v.81, p. 830-839, 1998.

VELÁSQUEZ, P.A.T.; BERCHIELLI, T.T.; REIS, R.A.; RIVERA, A.R.; DIAN, P.H.M.; TEIXEIRA, I. A.M.A. Composição química, fracionamento de carboidratos e proteínas e digestibilidade in vitro de forrageiras tropicais em diferentes idades de corte. Revista Brasileira de Zootecnia, v.39, n.6, p.1206-1213, 2010.

WEISS, W.P. Estimating the available energy content of feeds for dairy cattle. Journal of Dairy Science, v.81, p. 830-839, 1998.

WILSON, R. F; WILKINS, R. J. An evaluation of laboratory ensiling techniques. Journal of Science of Food and Agricultural, v. 23, n.1, p. 377-382, 1972.


Revista Agrarian 
e-ISSN 1984-2538

Licença Creative Commons

Este obra está licenciada com uma Licença Creative Commons Atribuição-NãoComercial-CompartilhaIgual 3.0 Brasil.