Journal of Animal Behaviour and Biometeorology https://malque.pub/ojs/index.php/jabb <p><strong>Journal of Animal Behaviour and Biometeorology (ISSN 2318-1265)</strong> is an international peer-reviewed open-access journal devoted to publishing papers about Animal Biometeorology, Animal Behaviour and Animal Welfare, published quarterly online by <strong><a href="http://www.malque.pub" target="_blank" rel="noopener" data-content="http://www.malquepub.com" data-type="external">Malque Publishing</a></strong>.</p> <p><strong>High Visibility:</strong> indexed by the Web of Science (ESCI), Scopus and SCImago Journal Rank, CAB international, Google Scholar, AGRIS, ASFA, Latindex, <a href="https://app.periodikos.com.br/journal/jabbnet/about#nav2" target="_self">among others</a>. Currently is under evaluation for Science Citation Index Expanded (SCIE, Web of Science).</p> <p><strong>Rapid Publication:</strong> manuscripts are peer-reviewed and a first decision provided to authors approximately 17-25 days after submission; acceptance to publication is undertaken in 3-5 days (median values for papers published in this journal in the first half of 2021).</p> <p><strong>Open Access</strong> free for readers, with Article Processing Charges (APC) paid by authors or their institutions. </p> <p><em><strong>Acceptance rate (first half 2021):</strong> </em><strong><em>32%</em> </strong></p> Malque Publishing en-US Journal of Animal Behaviour and Biometeorology 2318-1265 Effect of essential oils and aqueous extracts of plants on <em>in vitro</em> rumen fermentation and methane production https://malque.pub/ojs/index.php/jabb/article/view/219 <p>The objective of this study was to evaluate <em>in vitro</em> rumen fermentation and methane production under the influence of two sources of phytochemicals: essential oils (EOs) and aqueous extracts (AEs). Treatments were set up in a completely randomized block design, with 4×2+1 factorial arrangement of four species, S (garlic, G; cinnamon, C; rosemary, R; eucalyptus; EU) × two types of presentation, P (essential oil, EO; aqueous extract, AE) and a basal diet, BD (50% concentrate, 20% alfalfa and 30% corn silage). Rumen fermentation was evaluated using the <em>in vitro</em> gas production technique. All experimental units were incubated with 500 mg of BD for 72 hours. Treatments were added at a single dose of 900 mg/L of rumen inoculum. Gas pressure was recorded at 0, 2, 4, 6, 8, 10, 14, 18, 24, 30, 36, 42, 48, 60 and 72 h post-incubation. There was an interaction effect (P × S) between plant extract presentation (P) and plant species (S) for all variables. Treatments GEO, CEO, REO decreased volatile fatty acids (mmol/200 mg), microbial mass production (mg/g), CH<sub>4</sub> production (mL/g), <em>in vitro</em> dry matter digestibility (<em>P</em> &lt; 0.05), and total gas production at 24 and 72 h post-incubation (<em>P</em> &lt; 0.05; mL/g DM, mL/g OM). No differences (<em>P</em> &gt; 0.05) were observed between AEs and BD. In conclusion, the use of EOs negatively affected rumen fermentation parameters and the production of CH<sub>4</sub>. Garlic and cinnamon EOs effectively reduced methane emissions; however, they also reduced <em>in vitro</em> dry matter digestibility.</p> Aaron Alejandro Molho-Ortiz Atmir Romero-Pérez Efrén Ramírez-Bribiesca Claudia Cecilia Márquez-Mota Francisco Alejandro Castrejón-Pineda Luis Corona Copyright (c) 2022 Journal of Animal Behaviour and Biometeorology https://creativecommons.org/licenses/by-nc-nd/4.0 2022-01-12 2022-01-12 10 2 2210 2210 10.31893/jabb.22010 Mitigating feather pecking behavior in laying poultry production through tryptophan supplementation https://malque.pub/ojs/index.php/jabb/article/view/239 <p>Feather pecking behavior is regarded as the most serious welfare concern in poultry layer production. The cause of feather pecking is partly due to the nutrient-deficient diets that further depletes the tryptophan levels in the animal’s system. Tryptophan is an essential amino acid and thus, cannot be synthesized in the body of animals, including poultry. This amino acid can be metabolized through three pathways. Tryptophan metabolism produces important metabolites: serotonin and melatonin. Tryptophan affects hormone secretion in poultry. Thus, it affects poultry’s psychological status, which eventually leads to feathers’ pecking. The application of tryptophan as a feed additive can improve poultry performance and alleviate feather pecking behavior or stress response in poultry production. This is achieved through indole pathways and mostly through the Tryptophan-Kynurenine pathway. This review paper aims to provide detailed information regarding the performance of tryptophan on feather pecking behavior, particularly in laying poultry animals.</p> Truong Van Hieu Qui Nguyen Hoang Nguyen Thi Kim Quyen Copyright (c) 2022 Journal of Animal Behaviour and Biometeorology https://creativecommons.org/licenses/by-nc-nd/4.0 2022-01-07 2022-01-07 10 2 2211 2211 10.31893/jabb.22011 Thermal environment characterization of laying hen-housing systems https://malque.pub/ojs/index.php/jabb/article/view/205 <p>O objetivo do estudo foi reunir de formar sistêmica informações sobre as diversas variáveis que influência na caracterização do ambiente térmico nos galpões avícolas. A avicultura de postura é uma das atividades econômicas mais relevantes da agropecuária brasileira, a atividade teve um expressivo crescimento nas últimas décadas, principalmente no que diz respeito a genética, a nutrição. Contudo, para que haja a máxima expressão do potencial produtivo das aves, é necessário, além de outros fatores, proporcionar conforto térmico na instalações avícolas. &nbsp;Assim, os aviários de postura dotados de baterias de gaiolas, antes, ventilados naturalmente (pressão positiva), passaram a ser projetados com fechamentos laterais, fazendo uso de ventilação por pressão negativa e em alguns caso associados com resfriamento adiabático. Essa preocupação já foi assimilada pelos produtores, que passaram a investir na modernização dos galpões avícolas, instalando sistemas de ventilação por pressão negativa em modo de túnel, a eficiência térmica e sua distribuição nos diferente níveis das gaiolas desse sistema de ventilação é pouco conhecido, por isso se faz necessário a procura por tais informações.</p> Nágela Maria Henrique Mascarenhas Dermeval Araújo Furtado Bonifácio Benício de Souza Airton Gonçalves de Oliveira Antonio Nelson Lima da Costa José Valmir Feitosa Cacio Ribeiro Calvacanti Karoline Carvalho Dornelas Ricardo Sousa Silva Raimundo Calixto Martins Rodrigues Copyright (c) 2022 Journal of Animal Behaviour and Biometeorology https://creativecommons.org/licenses/by-nc-nd/4.0 2022-01-17 2022-01-17 10 2 2208 2208 10.31893/jabb.22008