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| Fante,Camila Argenta; Boas,Ana Carolina Vilas; Costa,Adriano Carvalho; Silva,Edson Pablo; Oliveira,Marcelo Caetano de; Lima,Luiz Carlos de Oliveira. |
| O objetivo deste estudo foi verificar o efeito de doses específicas do composto 1-metilciclopropeno (1-MCP), após a colheita, nos aspectos fisiológicos e na qualidade físico-química de maçãs Eva durante o armazenamento refrigerado. Após a aplicação dos tratamentos com diferentes doses de 1-MCP (0, 10, 50, 100 e 500mg L-1), os frutos foram armazenados em câmara fria 0,5°C (±0,5) por até 135 dias. O armazenamento refrigerado juntamente com a aplicação de 1-MCP resultou em uma menor produção de etileno, principalmente nos frutos tratados com as doses de 10, 50 e 100mg L-1. O grupo controle perdeu 45% de sua firmeza, enquanto os grupos tratados perderam, em média, 27% de sua firmeza. O parâmetro C de cor identificou frutos com cor mais intensa aos 135 dias de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Qualidade; Etileno; Taxa respiratória. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001200004 |
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| Allaman,Ivan Bezerra; Reis Neto,Rafael Vilhena; Freitas,Rilke Tadeu Fonseca de; Rosa,Priscila Vieira; Lago,Aline de Assis; Costa,Adriano Carvalho. |
| The knowledge of how animals deposited chemical components as water, protein, fat and ash in the carcass is importance for the formulation of a balanced diet, allowing maximum performance with a low environmental impact. So, the study was carried out to evaluate the influence of different tilapia strains (Chitralada, Commercial, Red and Universidade Federal de Lavras [UFLA]) on the deposition of bodily chemical components in the carcass. The bodily components analyzed were water, protein, fat and ash. For the determination of the bodily chemical deposition curves by age, the exponential, Brody, logistic, Gompertz and von Bertalanffy models were adjusted. The Commercial and UFLA strains deposited water at a faster speed (P<0.05) compared with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bodily components; Nonlinear models; Fish; Growth. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500008 |
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| Mattos,Bruno Olivetti de; Costa,Adriano Carvalho; Leal,Renato Silva; Freitas,Rilke Tadeu Fonseca de; Pimenta,Maria Emília de Sousa Gomes; Freato,Thiago Archangelo. |
| O objetivo deste trabalho foi determinar a densidade de estocagem de matrinxã (Brycon orthotaenia) em tanques-rede, considerando o desempenho produtivo. Foram utilizados 5.280 juvenis de Brycon orthotaenia com peso inicial de 115,2g±5,7, os quais foram distribuídos em 16 tanques-rede de 4³m nas densidades de 45, 70, 95 e 120 peixes m-3 em quatro repetições. Os peixes foram alimentados com ração comercial de 40% de proteína bruta durante o período experimental. Os dados foram submetidos à análise de variância e à regressão linear para estimativa do melhor ajuste a 5% de probabilidade. Os parâmetros produtivos como sobrevivência, peso inicial, peso final, conversão alimentar e taxa de crescimento específico não foram influenciados pela densidade de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquicultura; Sistema intensivo; Rio São Francisco. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000600018 |
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| Ribeiro,Paula Adriane Perez; Logato,Priscila Vieira Rosa; Paula,Daniella Aparecida de Jesús; Costa,Adriano Carvalho; Murgas,Luis David Solis; Freitas,Rilke Tadeu Fonseca de. |
| Trinta e cinco machos de tilápia com peso médio de 205 g foram mantidos em caixas de 250 litros para avaliar o metabolismo lipídico de tilápias-do-nilo (Oreochromis niloticus). O experimento foi conduzido durante 30 dias, entre os meses de outubro e novembro de 2006. Foram avaliadas cinco dietas, cada uma contendo óleo de oliva, óleo de milho, óleo de soja, óleo de linhaça ou óleo de peixe. Utilizou-se delineamento inteiramente casualizado, com cinco tratamentos e sete repetições. Avaliaram-se a composição química, o perfil lipídico muscular e a atividade hepática de glicose-6-P desidrogenase (G6PD) e enzima málica. Os dados foram submetidos à análise de variância com médias comparadas pelo teste de Scott-Knott (5%). Não houve diferenças significativas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lipídio; Nutrição; Óleos; Peixe. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008000800001 |
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| Fernandes,Felipe Augusto; Fernandes,Tales Jesus; Pereira,Adriele Aparecida; Meirelles,Sarah Laguna Conceição; Costa,Adriano Carvalho. |
| Abstract: The objective of this work was to evaluate how the parameterization and the application of different allometric values affect the obtention of the most adequate fit of von Bertalanffy’s model, in the description of the growth curve of meat-producing mammals (bovine, pigs, rabbits, and sheep). Among the nonlinear models, von Bertalanffy’s has been very often applied in several areas, with different parameterizations. This model has been commonly used with an allometric value of m = 2/3; however, for mammals, it is believed that this value can be m = 3/4. The analyzed data referring to the mass of meat-producing mammals according to their age were obtained from research institutions and from the literature. The results showed that von Bertalanffy’s... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allometry; Modeling; Nonlinear model; Parameterization; Regression. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000104307 |
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| Costa,Adriano Carvalho; Balestre,Marcio; Botelho,Hortência Aparecida; Freitas,Rilke Tadeu Fonseca de; Gomes,Richardson Cesar da Silva; Campos,Sérgio Augusto de Sousa; Foresti,Fábio Porto; Hashimoto,Diogo Teruo; Martins,Diego Galetti; Prado,Fernanda Dotti do; Mendonça,Maria Andreia Corrêa. |
| ABSTRACT This study aimed to impute the genetic makeup of individual fishes of Serrasalmidae family on the basis of body weight and morphometric measurements. Eighty-three juveniles, belonging to the genetic groups Pacu, Pirapitinga, Tambaqui, Tambacu, Tambatinga, Patinga, Paqui and Piraqui, were separated into 16 water tanks in a recirculation system, with two tanks per genetic group, where they remained until they reached 495 days of age. They were then weighed and analyzed according to the following morphometric parameters: Standard Length (SL), Head Length (HL), Body Height (BH), and Body Width (BW). The identity of each fish was confirmed with two SNPs and two mitochondrial markers. Two analyses were performed: one for the validating the imputation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colossoma spp.; Piaractus spp.; Breeding; Mixture model; Round fish. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000600443 |
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| Reis Neto,Rafael Vilhena; Freitas,Rilke Tadeu Fonseca de; Serafini,Moacyr Antonio; Costa,Adriano Carvalho; Freato,Thiago Archangelo; Rosa,Priscila Vieira; Allaman,Ivan Bezerra. |
| The objective of this study was to verify which morphometric measures and ratios are more directly associated with the weight and body yields of rounded fish. A total of 225 specimens of rounded fish (59 pacus, 61 tambaquis, 52 tambacus and 53 paquis) with average weight of 972.43 g (±115.52 g) were sampled, stunned, slaughtered, weighed, measured, and processed for morphometric and processing yield analysis. The morphometric measures taken were: standard length (CP); head length (CC); head height (AC); body height (A1); and body width (L1). For completeness, the following morphometric ratios were calculated: CC/CP, AC/CP, A1/CP, L1/CP, CC/A1, AC/A1, L1/A1, CC/AC and L1/CC. The yields of carcass, filet, rib and filet with rib were estimated after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal breeding; Carcass; Colossoma macropomum; Direct effect; Piaractus mesopotamicus. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700004 |
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| Orlando,Tamira Maria; Oliveira,Marinez Moraes de; Paulino,Renan Rosa; Costa,Adriano Carvalho; Allaman,Ivan Bezerra; Rosa,Priscila Vieira. |
| ABSTRACT This study aimed to evaluate the reproductive performance of female Nile tilapia (Oreochromis niloticus) fed diets containing different levels of digestible energy (DE). The fish were housed in 15 fiberglass tanks (500 L) in a recirculating system at an average temperature of 27.5 °C. The treatments consisted of five diets with increasing levels of DE (3,200; 3,400; 3,600; 3,800; and 4,000 kcal/kg). The levels of DE did not significantly influence the final weight or the hepatosomatic, gonadosomatic, and visceral fat indices. The absolute fecundity was influenced by the treatments, for which the highest values were observed from the 3,600 kcal/kg DE level and upward. The proximate composition of the fish also had a significant effect on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body composition; Fecundity; Fish; Nutrition; Reproduction. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100001 |
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| Allaman,Ivan Bezerra; Reis Neto,Rafael Vilhena; Freitas,Rilke Tadeu Fonseca de; Freato,Thiago Archangelo; Lago,Aline de Assis; Costa,Adriano Carvalho; Lima,Renato Ribeiro de. |
| The objective of this study was to evaluate the morphometric growth and weight gain of strains of tilapia (Thai, Red, UFLA and Commercial) by nonlinear models. Initially, 500 male fingerlings of each strain, at 85 (Red and UFLA) and 86 (Thai and Commercial) days of age, were stocked separately in raceways with 56 m³. Twenty fish of each strain were randomly sampled, weighed and measured monthly. Five nonlinear models (Brody, von Bertalanffy, Gompertz, logistic and exponential) were tested, choosing one that best fit to the data. The variables studied were: weight, standard length (SL), head length (HL), height 1 (H1), height 2 (H2), height 3 (H3), first distance (D1), second distance (D2), first width (W1), second width (W2) and third width (W3). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Absolute growth rate; Aquaculture; Nonlinear models; Relative growth rate. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000500001 |
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