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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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| 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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| Reis Neto,Rafael Vilhena; Serafini,Moacyr Antonio; Freitas,Rilke Tadeu Fonseca de; Allaman,Ivan Bezerra; Mourad,Natália Michele Nonato; Lago,Aline de Assis. |
| With the purpose of evaluating the changes and the degree of heterosis on performance and carcass traits of fish from the diallel crossing between Pacu and Tambaqui, four genetic groups were generated through hormonal induction: pacu, tambaqui, tambacu and paqui. For 196 days, 400 juveniles of each genetic group were stocked in a pond divided into four parts of equal size, one for each group. At the end of this period, when the fish weighed on average 1024 g (±115.52 g), 20 specimens of each genetic group were sampled, weighed, measured: head length; standard length; body height; and width; and also processed resulting in following body yield: viscera; carcass; head; fillet; rib; residue and skin yields. There was positive heterosis for body weight,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body yield; Heterosis; Hybrids; Morphometry; Roundfish. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001200002 |
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| Nascimento,Germano Augusto Jerônimo do; Rodrigues,Paulo Borges; Freitas,Rilke Tadeu Fonseca de; Allaman,Ivan Bezerra; Lima,Renato Ribeiro de; Reis Neto,Rafael Vilhena. |
| Este trabalho foi realizado para se obter uma equação de predição para estimar os valores de energia metabolizável aparente corrigida (EMAn) dos alimentos proteicos usualmente utilizados em rações para frangos de corte utilizando-se o princípio da meta-análise. Realizou-se uma revisão bibliográfica de estudos no Brasil para catalogar informações sobre valores de EMAn e composição química dos alimentos: proteína bruta (PB), extrato etéreo (EE), matéria mineral (MM), fibra bruta (FB), fibra em detergente neutro (FDN) e fibra em detergente ácido (FDA). Foram considerados os efeitos de: sexo, em três níveis (macho, fêmea e mistos); idade, em quatro níveis (1ª e 2ª semana de vida, 3ª e 4ª semana, 5ª e 6ª semana e acima ou indefinido) e metodologia empregada no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Composição química; Farelo de soja; Fontes proteicas; Subprodutos da soja. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001000016 |
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| Souza,Karina Márcia Ribeiro de; Carrijo,Alfredo Sampaio; Allaman,Ivan Bezerra; Fascina,Vitor Barbosa; Mauad,Juliana Rosa Carrijo; Suzuki,Francisco Manabu. |
| Foram avaliados métodos alternativos de restrição alimentar qualitativa em comparação à técnica convencional de muda forçada. Utilizaram-se 480 galinhas Babcock de 78 semanas distribuídas em três níveis de restrição alimentar (100, 75 e 50%) e três percentuais de redução de peso corporal (15, 20 e 25%), cada um com cinco repetições de 32 aves. Quando as aves atingiram o percentual de redução de peso corporal, determinaram-se o volume globular, os percentuais de ovário, oviduto, moela, intestino e gordura abdominal e o comprimento de oviduto. A partir do 28º dia e durante cinco períodos de 28 dias, observaram-se as características quantitativas e qualitativas de produção pós-muda. O maior período de restrição foi observado no nível de 50% e proporcionou... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bem-estar animal; Galinha de postura; Jejum alimentar; Ovário; Percentual de restrição qualitativa. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000200019 |
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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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| 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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| Reis Neto,Rafael Vilhena; Oliveira,Carlos Antônio Lopes de; Ribeiro,Ricardo Pereira; Freitas,Rilke Tadeu Fonseca de; Allaman,Ivan Bezerra; Oliveira,Sheila Nogueira de. |
| The main factor considered in breeding programs for fish is growth, which can be assessed in terms of a gain in either weight or body measurements. This study was undertaken to evaluate the morphometric traits of GIFT strain tilapia (Oreochromis sp.) selected for weight gain. The data set used contained information on 6,650 animals. The genetic values of 8,590 animals in a relationship matrix of five generations were predicted. The following morphometric measurements were evaluated: standard length; body depth and body width. Body area and volume were also calculated. Bi-character analyses involving morphometric traits were used to estimate (co)variance components. Heritability, larval and fingerling common environmental effects were estimated for each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bayesian approach; Genetic correlation; Genetic gain; Heritability. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000400001 |
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