Influence of Feeding Enzymatically Hydrolyzed Yeast Cell Wall on Growth Performance and Digestive Function of Feedlot Cattle during Periods of Elevated Ambient Temperature

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:33:28Z
Fecha de publicación2015-01-01
ResumenIn experiment 1, eighty crossbred steers (239 +/- 15 kg) were used in a 229-d experiment to evaluate the effects of increasing levels of enzymatically hydrolyzed yeast (EHY) cell wall in diets on growth performance feedlot cattle during periods of elevated ambient temperature. Treatments consisted of steam-flaked corn-based diets supplemented to provide 0, 1, 2, or 3 g EHY/hd/d. There were no effects on growth performance during the initial 139-d period. However, from d 139 to harvest, when 24-h temperature humidity index averaged 80, EHY increased dry matter intake (DMI) (linear effect, p<0.01) and average daily gain (ADG) (linear effect, p = 0.01). There were no treatment effects (p>0.10) on carcass characteristics. In experiment 2, four Holstein steers (292 +/- 5 kg) with cannulas in the rumen and proximal duodenum were used in a 4x4 Latin Square design experiment to evaluate treatments effects on characteristics of ruminal and total tract digestion in steers. There were no treatment effects (p>0.10) on ruminal pH, total volatile fatty acid, molar proportions of acetate, butyrate, or estimated methane production. Supplemental EHY decreased ruminal molar proportion of acetate (p = 0.08), increased molar proportion of propionate (p = 0.09), and decreased acetate: propionate molar ratio (p = 0.07) and estimated ruminal methane production (p = 0.09). It is concluded that supplemental EHY may enhance DMI and ADG of feedlot steers during periods of high ambient temperature. Supplemental EHY may also enhance ruminal fiber digestion and decrease ruminal acetate: propionate molar ratios in feedlot steers fed steam-flaked corn-based finishing diets.es_ES
Doihttps://doi.org/10.5713/ajas.15.0061es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/5304
Idiomaenes_ES
EditorialASIAN-AUSTRALASIAN ASSOC ANIMAL PRODUCTION SOCes_ES
RelaciónAsian-Australasian Journal of Animal Scienceses_ES
URL relacionadohttps://doi.org/10.5713/ajas.15.0061es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteAsian-Australasian Journal of Animal Sciences
Palabra claveYeastes_ES
Palabra claveGrowth Performancees_ES
Palabra claveDigestiones_ES
Palabra claveCattlees_ES
TítuloInfluence of Feeding Enzymatically Hydrolyzed Yeast Cell Wall on Growth Performance and Digestive Function of Feedlot Cattle during Periods of Elevated Ambient Temperaturees_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorSalinas-Chavira, J.
AutorArzola, C.
AutorGonzalez-Vizcarra, V.
AutorManriquez-Nunez, O. M.
AutorMontano-Gomez, M. F.
AutorNavarrete-Reyes, J. D.
AutorRaymundo, C.
AutorZinn, R. A.
AutorSalinas-Chavira, J.es_ES
AutorArzola, C.es_ES
AutorGonzalez-Vizcarra, V.es_ES
AutorManriquez-Nunez, O. M.es_ES
AutorMontano-Gomez, M. F.es_ES
AutorNavarrete-Reyes, J. D.es_ES
AutorRaymundo, C.es_ES
AutorZinn, R. A.es_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número9es_ES
Rango de páginas1288-1295es_ES
URL relacionadahttps://doi.org/10.5713/ajas.15.0061
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen28es_ES

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