Avaliação estatística das variáveis relacionadas a qualidade de farelo de soja para frangos de corte
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2019-10-28
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Universidade Federal de Goiás
Resumo
The use of soybean meal for poultry presents restrictions due to the antinutritional factors when
poorly processed. The objective of this work was to discuss a literature review on soybean meal
quality and to evaluate the available database on soybean meal quality relating thermal
processing with bromatological quality for poultry nutrition. The first chapter was about the
effect of processing and quality of soybean meal, in chapter two and three were evaluated
analysis database on wet chemistry and Near Infrared Spectroscopy (NIRS), respectively. For the
composition of chapter two, the 283 samples were obtained from a chicken producer integrating
company located in the state of Goiás. In the first stage, there was categorization of bran samples
by KOH-soluble protein levels: below 75%, from 75%. 80%, 80% to 85%, 85% to 90%, and
above 90%. After categorization, multivariate analyzes and ANOVA with Scott Knott test were
performed to compare the means. Step two categorized the analysis results by level of urea
activity, classifying the 283 samples into 5 categories: 0; 0.01; 0.011-0.05; 0.051-0.1 and above
0.1. Multivariate analyzes and ANOVA were performed with Scott Knott test to compare the
means. The third chapter was made with database of bran analysis via NIRS and statistical analysis was performed with nonparametric tests for amino acid and bromatological values
compared with urease levels read in NIRS. In step 1 the data differed significantly for solubility
in KOH, indicative of urea activity and only 1 group of soluble protein differed from a mean
percentage of crude protein (% CP). In experiment two, the groups of urea activity differed
statistically for protein solubility in KOH, urea activity. For groups of 0; and 0.01 of urea activity
differed from the average of crude fiber. In chapter 3, experiment with database obtained via
NIRS, there was a difference between the humidity and the highest values of urea activity; for the
aminogram, we found statistical differences with nonparametric tests for cystine, methionine +
cystine; Arginine, Isoleucine, Glycerin, Serine and Proline.
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JARDIM, M. M. Avaliação estatística das variáveis relacionadas a qualidade de farelo de soja para frangos de corte. 2019. 52 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Goiás, Goiânia, 2019.