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| SOARES,DANIELA F.; PIZZOLANTE,CARLA C.; DUARTE,KEILA MARIA R.; MORAES,JOSÉ EVANDRO DE; BUDIÑO,FÁBIO E.L.; SOARES,WEBER V.B.; KAKIMOTO,SÉRGIO K.. |
| Abstract In the way to reduce costs in the poultry production, high densities of birds are adopted in the production systems. Such high densities can lead to an inappropriate environment, compromising the welfare and decreasing the animal performance. In this work we aimed to evaluate the effects of different densities on the productive yield, egg quality and immunological aspects of Japanese quails. It was used 816 Japanese quails, during egg production phase, in a random design, with four treatments (121.43 cm2/bird; 106.25 cm2/bird; 94.44 cm2/bird and 85.00 cm2/bird) with six repetitions each. Results indicate density did not interfere on egg quality and all treatments can be considered excellent, once the Haugh Unit was 88.03. Therefore, higher... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Immunity; IgY; Egg quality; Haugh Unit. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703791 |
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| BUDIÑO,FÁBIO E.L.; VIEIRA,RENATA F.N.; MELLO,SILVIO P.; DUARTE,KEILA M.R.. |
| Sixteen pregnant sows were used. The experimental design was completely randomized with a 2x2 factorial scheme consisting of two housing systems (individual cages and collective pens) and two diets (low [2.67%] and high [13.14%] level of crude fiber). Physiological, behavioral, environmental, and hormonal parameters were studied. In addition, the following productive and reproductive parameters were evaluated: weight gain, feed intake, feed conversion of the sow and piglets, number of piglets born dead and alive, number and weight at weaning, and backfat thickness of sows. Pregnant sows reared in collective pens and fed a high-fiber diet exhibited better physiological responses, indicating greater comfort and better animal welfare. The environmental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Swine; Animal welfare; Environmental enrichment; Housing systems. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000402109 |
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