2016
DOI: 10.1590/s0100-736x2016000700016
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Abstract: The thymus is a lymphoid organ and usually evaluated for the degree of lymphocyte loss with subjective histological techniques. This study aimed to adapt and to apply of the digital analysis of the lymphoid depletion system (ADDL) in the thymus in order to obtain a more accurate analysis. Glucocorticoid was used to induce immunosuppression in 55 broilers at 21 days of age; other 15 broilers were the control group. After euthanasia of the broilers, postmortem examination was made. Both thymic chains were collec… Show more

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Cited by 4 publications
(3 citation statements)
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“…The evaluation of lymphoid depletion of BF and thymus were performed according to previous studies [2,18]. In both cases, scores range from 1 (less lymphoid depletion) to 5 (more lymphoid depletion).…”
Section: Lymphoid Depletion Evaluationmentioning
confidence: 99%
“…The evaluation of lymphoid depletion of BF and thymus were performed according to previous studies [2,18]. In both cases, scores range from 1 (less lymphoid depletion) to 5 (more lymphoid depletion).…”
Section: Lymphoid Depletion Evaluationmentioning
confidence: 99%
“…Spohr (2011) successfully simulated the zootechnical performance of an entire poultry production chain using AI. Furthermore, ANNs were used by our team to predict the antimicrobial resistance of Escherichia coli strains (Rocha, 2012) and to evaluate lymphocyte depletion in the bursa of Fabricius and thymus (Moraes et al, 2010, Carvalho et al, 2016. Other research groups have also developed mathematical models and intelligence systems that allow for the data management of several areas of the poultry production chain (Lourençoni et al 2019;Abreu et al, 2020;van der Klein et al, 2020;You et al 2021).…”
Section: Resultsmentioning
confidence: 99%
“…In the past five years, AI technologies have grown by 300% per year, and it is estimated that they will increase civilization's productivity by 40% by 2035 (Salle et al, 2018). Several studies in different segments of the poultry chain have been conducted over the years using ANNs (Salle et al, 2003;Moraes et al, 2010;Spohr 2011;Savegnano et al, 2011;Carvalho et al, 2016;Ramírez-Morales et al, 2017;van der Klein et al, 2020;You et al, 2021). However, the evaluation of the use of this tool in the commercial laying hen chain is still limited.…”
Section: Introductionmentioning
confidence: 99%