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Doctoral Thesis
DOI
https://doi.org/10.11606/T.74.2006.tde-28072008-091842
Document
Author
Full name
Olga Lurdes Jossias Faftine
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Pirassununga, 2006
Supervisor
Committee
Zanetti, Marcus Antônio (President)
Bueno, Ives Cláudio da Silva
Franzolin Neto, Raul
Nogueira Filho, José Carlos Machado
Salles, Márcia Saladini Vieira
Title in Portuguese
Efeitos da salinomicina no consumo, degradação no rúmen e in vitro, taxas de produção de gases e fermentação in vitro de dietas compostas por feno de capim coast cross (Cynodon dactylon) e sal proteinado
Keywords in Portuguese
Gases
In vitro
Inóculo
Ionóforo
Rúmen
Abstract in Portuguese
Este trabalho pretende avaliar o efeito da salinomicina no consumo de feno coast cross e sal proteinado, na digestibilidade total, ruminal in situ e in vitro, taxas de produção de gases e taxas de fermentação. Para a avaliação da digestibilidade e degradabilidade in situ foram utilizados 4 novilhos Holandeses com peso médio de 350 kg ± 43 kg. O delineamento experimental utilizado foi o quadrado latino com 4x4. No ensaio in vitro foram utilizados 4 substratos *8 inóculos *2 corridas com delineamento em blocos e arranjo fatorial. Os tratamentos estudados foram: 0; 0,1; 0,2; 0,3 mg de salinomicina /kg de peso vivo. Não foram encontradas diferenças significativas (p>0,05) no consumo de MS(1,92; 1,73; 1,60; 1,63 %PV), digestibilidade aparente da MS (81,79; 80,32; 80,32 e 80,49), na degradação in situ da MS (52; 51,25; 49,20 e 51,38) e na degradação in vitro da MS (45,31; 45,64; 45,77; 45,03) entre os vários tratamentos. Os únicos parâmetros onde foram identificadas alterações significativas entre os tratamentos foram no volume final de gases in vitro e nas curvas de taxas de fermentação. Os valores encontrados de para o volume final de gases foi de 231,8; 204; 168 e 157,78 ml /g de MS para a dose de 0; 0,1; 0,2 e 0,3 mg de salinomicina/ kg de PV, respectivamente. O tratamento 3 foi o que teve menores perdas de energia.
Title in English
Effects of salinomycin on dry matter intake , in situ and in vitro degradability , rates of gas production and fermentation of cynodon (Cynodon dactylon) hay supplemented with proteic salt
Keywords in English
In situ
In vitro
Inoculum
Ionophore
Rumen
Abstract in English
This experiment was conducted to evaluate the effect of graded levels of salinomycin on feed intake, apparent di estibility, gas production and fermentation rate, degradability in situ and in vitro of cynodon hay supplemented with proteic salt with 0, 0.1, 0.2 and 0,3mg of salynomicin per kg LW. Intake , digestibility and degradabilty studies were analysed as a latine square design 4x4 and in vitro trials followed the block randomized design with a two factors (inocula and substrate). No differences (p>)0,05) were found between the treatments for DM intake (1.92, 1.73, 1.60, 1.63 per % LW), DM digestibility (81.79, 80.32, 80.32 and 80.49), DM in situ degradability (52, 51.25, 49.20 and 51.38) and in vitro DM degradability (45.31, 45.64, 45.77 and 51.38). Differences between treatments were found only for potencial gas production in vitro (231.8, 204, 168 and 157.78 ml/g DM) for 0, 0.1, 0.2 and 0,3 mg of salinomycin/kg LW. Therefore, wasting energy was minimized at treatment 3.
 
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3159490DO.pdf (2.63 Mbytes)
Publishing Date
2008-07-28
 
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