AVALIAÇÃO NUTRITIVA DE FENOS DA PASTAGEM NATURAL DO PARANÁ
DOI:
https://doi.org/10.5380/avs.v5i1.3893Keywords:
pastagem natural, feno, consumo voluntário, digestibilidade. natural pasture, hay, voluntary intake, digestibility.Abstract
Fenos de pastagem natural do Paraná colhidos durante o verão nos municípios de Ponta Grossa, Guarapuava e Tibagi, foram avaliados pela composição química, determinação dos coeficientes de digestibilidade e consumo voluntário com ovinos. Baseados na composição química, os valores encontrados foram semelhantes para os três fenos estudados. No entanto, o feno de Guarapuava apresentou valores mais elevados em FDN e lignina. Entre os coeficientes de digestibilidade, somente o da proteína bruta e do FDN não apresentaram diferença significativa entre os locais (P>0,05). Para a digestibilidade da matéria seca e energia bruta, o feno de Ponta Grossa mostrou-se superior ao de Tibagi. No consumo de matéria seca, proteína e energia digestíveis, não houve diferença significativa (P>0,05) entre locais, mas em relação a energia líquida de manutenção o feno de Ponta Grossa diferiu significativamente do feno de Tibagi (P<0,05) e o de Guarapuava não diferiu dos dois. Numericamente o feno de Ponta Grossa foi superior aos demais. Os animais alimentados com feno de Ponta Grossa consumiram mais matéria seca, proteína, energia digestível e energia líquida de manutenção do que os que receberam os fenos de Guarapuava e Tibagi. Os fenos estudados ocasionaram a perda de peso dos animais.
Nutritional evaluation of hays from Paraná state natural pastures
Abstract
Hays from Paraná natural pastures were collected during the Summer season in the districts of Ponta Grossa, Guarapuava and Tibagi. They were evaluated in regard to chemical composition, digestibility coefficients and voluntary consumption by sheep. Based upon the chemical composition, the values found were similar for the three studied hays. However, the Guarapuava hay displayed higher values for neutral detergent fibers (NDF) and lignin. In regard to digestibility coefficients, only crude protein and NDF did not show significant differences concerning their respective origin (P>0.05). As far as digestibility of the dry matter and gross energy are concerned, the hay of Ponta Grossa showed superior qualities when compared with the Tibagi one. No significant differences (P>0.05) were found between all the hays studied. However, in regard to liquid maintenance energy, the Ponta Grossa hay differed significantly from the Tibagi hay (P<0.05) while the Guarapuava one did not differ from the other two. In figures, the Ponta Grossa hay showed to be superior when compared to the other ones. The animals fed with the Ponta Grossa hay consumed more dry matter, protein and digestible energy as well as liquid maintenance energy differently from those fed with Guarapuava and Tibagi hays. All the three studied hays caused loss of weight to the animals.
Downloads
How to Cite
Issue
Section
License
Authors that wish to publish in AVS agree with the following conditions:
- To keep copyright of the article and allow the AVS to publish the first time. The article will be licensed by Creative Commons - Atribuição 4.0 Internacional allowing the sharing of their work.
- Authors may distribute their work by other channel of distribution (ex.: local or public repository).
- Authors have the permission to publish their work online, using different channels (similar to above), even before the final editorial process.











