INFLUÊNCIA DO FOTOPERÍODO EMERAL SOBRE CARCTERISTICAS BROMATOLÓGICAS DA CARCAÇA DE JUVENIS DE TAMBAQUI (Colossoma macropomum)

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UTILIZAÇÃO DE SUBPRODUTOS E RESÍDUOS DE FRUTAS NA SUPLEMENTAÇÃO DE OVINOS (Ovis aries)

A utilização de subprodutos e resíduos de frutas na suplementação de ovinos tem-se demonstrado uma importante alternativa sustentável, sendo capaz, de minimizar os danos ambientais e ao mesmo tempo diminuir o custo de produção aos proprietários. Diversos aspectos, como digestibilidade, comportamento ingestivo, características de carcaça, desempenho, dentre outros, estão sendo avaliados quanto à inclusão de resíduos e subprodutos de frutas na suplementação ovina. Apesar de sua grande relevância, são poucos os estudos abordando esta temática, sugerindo-se novas pesquisas quanto a esse aspect

Uso de Eugenol para anestesia de Oreochromis niloticus : Use of Eugenol for anesthesia of Oreochromis niloticus

O presente trabalho teve como objetivo avaliar o eugenol como anestésico para a tilápia do Nilo nas operações de manejo. Trinta peixes (29,48±5g) foram submetidos a ( T1=50,T2=60 e T3=70mg/L), sendo 10 peixes por tratamento ,onde foram mantidos até o estágio de anestesia profunda, sendo logo recuperados em um aquário contendo água livre de eugenol .O eugenol mostrou- se eficiente em juvenis de tilápia e nas diferentes concentrações, influenciando significativamente na indução dos peixes. O tratamento T1= 50mg/L é o mais recomendado para o manejo, pois apresenta rápida indução e uma longa recuperação, sendo espaço de tempo que se pode realizar procedimento de manejo com o baixo gasto do anestésico

Uso de branchonetas (Dendrocephalus brasiliensis) no tratamento de água proveniente da piscicultura: Use of branchonets (Dendrocephalus brasiliensis) in the treatment of fish water

O objetivo deste estudo e avaliar a utilização do microcrustáceo Dendrocephalus brasiliensis, popularmente conhecido como branchoneta no tratamento de água residuária da piscicultura do IFES – Campus de Alegre. O delineamento experimental foi inteiramente casualizado - DIC, composto por 6 tratamentos,  T1   =  Sem  náuplios  branchonetas/Litro  (SBL);  2T =  60  náuplios  de  branchonetas/Litro (60BL); T3 = 120 náuplios de branchonetas /Litro (120BL); T 4 = 240 náuplios de branchonetas /Litro (240BL); T5 = 480 náuplios de branchonetas/Litro (480BL) e T 6 = 960 náuplios de branchonetas /Litro (960BL). Os resultados demonstram uma relação inversa entre o aumento da densidade em relação a turbidez da água. Com isso, a branchoneta diminui a turbidez da água residuária de aquicultura em até aproximadamente 80% nas condições testadas

Efeito do tempo de depuração sobre o rendimento de carcaça e file de tilapias do nilo (Oreochromis niloticus): Effect of debutting time on carcass and file profit of nilo tiles (Oreochromis niloticus)

No Brasil a tilápia do Nilo (Oreochromis niloticus) é amplamente produzida, por apresentar boas características zootécnicas, rendimentos e aceitar diferentes manejos produtivos. Entre estes, o jejum (depuração) é um dos manejos que podem influenciar diretamente na produção. O presente trabalho tem como objetivo verificar a relação entre rendimento e depuração. O estudo foi realizado no IFES – Campus de Alegre, no setor de aquicultura. Foram utilizados 100 tilápias de 31,371 ± 1,60 cm e 0,536 ± 0,066 Kg. Os rendimentos foram calculados em relação ao peso total de cada peixes. Foi observado que o tempo de depuração de 3 dias interfere de forma positiva no rendimento de carcaça e filé de tilápia

Use of restaurant food profits in nilotic tilapia feeding: Aproveitamento de resíduos alimentares de restaurante na alimentação de tilápia nilótica

Aquaculture is the fastest growing sector in food production, however spending on feed, which can reach up to 80% of the total cost of production. In an attempt to solve this problem, one of the options would be to substitute traditional ingredients for alternatives, in an attempt to minimize the final cost of the feed. Thus, the objective of this work was to evaluate levels of inclusion of restaurant waste in the productive performance, in Nile tilapia, for this purpose 300 juveniles were used. The experimental design used was completely randomized, with four treatments, with performance with five replications and digestibility with three. The treatments consisted of four isoproteic and isoenergetic diets, with different levels of inclusion of the restaurant meal bran (0, 5, 10 and 15%). In conclusion, the inclusion of meal from restaurant waste at different levels did not affect the performance of the animals in the 45 days of the experiment.Aquaculture is the fastest growing sector in food production, however spending on feed, which can reach up to 80% of the total cost of production. In an attempt to solve this problem, one of the options would be to substitute traditional ingredients for alternatives, in an attempt to minimize the final cost of the feed. Thus, the objective of this work was to evaluate levels of inclusion of restaurant waste in the productive performance, in Nile tilapia, for this purpose 300 juveniles were used. The animals were distributed in 10 boxes of 500 L, being interconnected in a water recirculation system, with an average of two liters of water per minute, using a biological filter for mineralization of ammonia in nitrite, and of nitrite in nitrate and a system continuous aeration with “microporous” stones connected to a portable air compressor. The experimental design used was completely randomized, with four treatments, with performance with five replications and digestibility with three. The treatments consisted of four isoproteic and isoenergetic diets, with different levels of inclusion of the restaurant meal bran (0, 5, 10 and 15%). The physical-chemical parameters of the water, such as dissolved oxygen, pH and temperature were analyzed throughout the experimental period, monitored every two days. The fish were subjected to a 12-hour photoperiod followed by light. At the end of the experimental period, the animals were fasted for 24 hours, then sacrificed by thermal shock with ice and subsequently submitted to biometry. The inclusion of restaurant waste bran at different levels did not negatively affect the performance of the animals, up to 45 days of age

Different foods in larvicultura of traíra (Hoplias malabaricus)

ABSTRACT. Pereira S.L., Mendonça P.P., Pellanda A.S., Matielo M.D. & Gon- çalves Junior L.P. [Different foods in larvicultura of traíra (Hoplias malabaricus).] Utilização de diferentes alimentos na larvicultura de traíra (Hoplias malabaricus). Revista Brasileira de Medicina Veterinária, 37(3):233-238, 2015. Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, RJ 28013-602, Brasil. E-mail: [email protected] The feeding in the larviculture of species carnivorous view point for closing of the technological packages of rearing culture. Developed in the sector of Aquicultura of the IFES - Campus of Alegre, this work it aimed at to compare the performance with four diet feed as first exogenous feeding for traíra (Hoplias malabaricus), parameters evaluated: Survival, length final (CF), final weight (PF), tax of specific growth (TCE), development tax specifies (TDE), being put in container with fifteen liters of water, with constant aeration, have five larva of traíra/container. The delineation entire was aleatory with four treatments and five repetitions. Being the diet feeds represented for T1: Nauplios de Artemia sp.; T2: microworm of oats (Pannagrelos redivivus); T3: Wild Zooplâncton; e the inert food represented by T4: Commercial ration in dust with 55% of crude protein and 4,200 Kcal de ED/kg of ration. The water exchange was of 80% daily, the average temperature was of 27.5±1°C. The indices of survival in the T1, T2, T3 and T4, had been 84%, 72%, 100% and 92%, respectively. The date had been submitted analyze it statistics ANOVA and test of Tukey (P<0.01). Wild Zooplâncton was biggest CTF, PF, GP, TCE and TDE. Did not have difference statistics between the Artemia sp. the ration for TCE and TDE. The microworm of oats was minor CF, PF, TCE and TDE. The treatment Wild zooplankton (T3) showed optimum diet food among the other diet feeds tested for the development and the survival of the larva of traíra, that in turn the treatment (T4) - the ration was adapts precociously, getting low mortality with the inert ration diet feed

INFLUÊNCIA DO FOTOPERÍODO EMERAL SOBRE CARCTERISTICAS BROMATOLÓGICAS DA CARCAÇA DE JUVENIS DE TAMBAQUI (Colossoma macropomum)

The aim of this study was to evaluate the influence of ahemeral photoperiod on the chemical composition of the carcasses of tambaqui (Colossoma macropomum). The experiment was conducted using 1 90 fish with average weight of 11.01 ± 2.08g and total lenght of 7.8± 0.18cm,stored in sixteen bowls of 56 liters of water with daily renewal of 40-times volume. The water temperarature was maintained at 29.1 ± 0.41°C and the stocking rate was equivalent to 2.75g/L. All tanks had constant aeration. Ahemeral photoperiods were maintained with the aid of timers. The following treatments were used: T1 = 6 hours of light, T2= 1 2 hours of light, T3= 1 8 hours of light and T4= 24 hours of light with four replications each. The juveniles were fed twice a day with commercial extruded feed (28% crude protein). The experiment lasted 64 days and the chemical composition of eviscerated and sheddedcarcasses were analysed at the beginning, at 32 days and at the end of it for the evaluation of crude protein, ether extract, ash and non nitrogenous extract in dry matter and in natural matter. Statistical analysis of variables was performed with the aid of SAEG application, version 9.1. For performing analysis of variance, Pearson correlationsand regressions were used. There was no effect of ahemeral photoperiods (p<0.05) in variables