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Article . 2020
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Degradación ruminal de materia seca y proteína y composición química de canutillo (Panicum elephantipes) y camalote (Eichhornia crassipes)

Authors: R. Figallo; N. M. Peronja; A. Pidelo; A. M. Smacchia;

Degradación ruminal de materia seca y proteína y composición química de canutillo (Panicum elephantipes) y camalote (Eichhornia crassipes)

Abstract

El objetivo fue identificar especies vegetales forrajeras nativas y naturalizadas de las islas del delta del río Paraná y estudiar las fracciones que se degradan en el rumen. Las muestras fueron de Eichhornia crassipes (Camalote, CA) y Panicum elephantipes (Canutillo, CN), obtenidas en las islas del río Paraná a la altura del km 430. Se les determinó la composición química y la cinética de degradación ruminal in sacco (DR) de la materia seca (MS) y proteína cruda (PC). Los datos fueron analizados por ANOVA y test de Scheffe (P > 0,05) y DR ajustados al modelo: DR% = a + b (1 - e-ct), donde es a: fracción soluble, b: fracción lentamente degradable, c: tasa de degradación de b y a + b: fracción potencialmente degradable. CA presentó 58% menos MS, similar extracto etéreo (EE) y 35,5; 14,1 y 30,9 % más Ceniza, fibra cruda (FC), y PC que CN. La fracciones degradables en rumen fueron: fracción a de MS: 18 y 21,6 y PC: 17,5 y –4 %, fracción b de MS: 50,9 y 41,5 y PC: 42,6 y 80,4%, tasa de degradación de la MS: 0,019 y 0,0384 y PC: 0,033 y 0,048 %/h y fracción a + b de la MS: 69 y 63,1 y PC: 60,0 y 76,4 en CA y CN, respectivamente. CA presentó mayor solubilidad y menores fracciones b, c y a + b de la PC que CN. El camalote y el canutillo, si bien demostraron ser una interesante fuente dietaria para rumiantes, presentaron menor degradabilidad que especies forrajeras cultivadas estudiadas anteriormente.

Keywords

Rumen, Eichhornia, SF191-275, Agriculture (General), Proteína, Cattle, Panicum, SF1-1100, In sacco, S1-972, Animal culture

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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