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Exigência líquida de zinco, cobre e ferro para cordeiros em pastejo no semiárido - doi: 10.4025/actascianimsci.v32i3.5883 Animal Sciences
Mendes, Rodrigo de Souza; UFCG; Silva, Aderbal Marcos de Azevêdo; UFCG; Silva, Guilherme de Lira Sobral; UFCG; Nóbrega, Giovanna Henriques da; UFCG; Lôbo, Katiuscia Menezes; UFCG; Pereira Filho, José Morais; UFCG.
Este trabalho teve por objetivo determinar as exigências líquidas de zinco (Zn), cobre (Cu) e ferro (Fe) de cordeiros Santa Inês em pastejo na região semiárida. Os animais com peso vivo entre 20 e 30 kg apresentaram conteúdo corporal no peso de corpo vazio (PCV) para esses minerais de 60,26 a 76,37 mg kg-1, 10,78 a 16,72 mg kg-1 e 133,44 a 126,98 mg kg-1, respectivamente. Observou-se que com o aumento do PCV, as concentrações de Cu e Zn também aumentavam, enquanto a de Fe diminuía. As exigências líquidas para cordeiros em regime de pastejo variaram de 1,69 a 7,86 mg dia-1 para Cu e 7,20 a 27,4 mg dia-1 para Zn. Os resultados obtidos no presente trabalho, para exigências desses minerais, foram maiores do que as exigências dietéticas recomendadas pelo do NRC...
Tipo: Pesquisa de campo Palavras-chave: Zootecnia composição corporal; Exigências nutricionais; Ferro; Cobre; Zinco; Exigências dietéticas Zootecnia body composition; Nutritional requirements; Iron; Copper; Zinc; Dietary requirements.
Ano: 2010 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/5883
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Níveis de proteína bruta e energia metabolizável em uma linhagem de codorna de corte - doi: 10.4025/actascianimsci.v34i2.12589 Animal Sciences
Veloso, Rogério de Carvalho; Universidade Federal dos Vales do Jequitinhonha e Mucuri; Pires, Aldrin Vieira; Universidade Federal dos Vales do Jequitinhonha e Mucuri; Timpani, Vivian Dagnesi; universidade federal dos vales do jequitinhonha e mucuri; Drumond, Eduardo Silva Cordeiro; Universidade Federal dos Vales do Jequitinhonha e Mucuri; Gonçalves, Flaviana Miranda; Universidade Federal dos Vales do Jequitinhonha e Mucuri; Faria Filho, Daniel Emygdio de; Universidade Federal de Minas Gerais.
O objetivo deste trabalho foi estabelecer os níveis de proteína bruta e energia metabolizável para melhor desempenho em ganho de peso, peso corporal, consumo de ração e conversão alimentar em codornas de corte. Utilizaram-se 540 codornas de corte, durante três períodos experimentais: inicial (1 ao 21 dia), crescimento (22 ao 35 dia) e terminação (36 ao 49 dia). Os tratamentos foram constituídos pela combinação de cinco níveis de proteína bruta (18, 20, 22, 24 e 26% de PB) com três níveis de energia (2.700, 2.900 e 3.100 kcal EM kg-1), distribuídos em três blocos. Os modelos de regressão por superfície de resposta foram adotados como método de análise estatística. A melhor conversão alimentar ocorreu na fase de crescimento (22 ao 35 dia) independente do...
Tipo: Superficie de resposta Palavras-chave: 5.04.02.00-5 Coturnix coturnix coturnix; Desempenho produtivo; Superfície de resposta; Exigência nutricional Coturnix coturnix coturnix; Performance; Response surface; Nutritional requirements.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/12589
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High levels of dietary vitamin E improve the reproductive performance of female Oreochromis niloticus - doi: 10.4025/actascibiolsci.v36i1.19830 Biological Sciences
Nascimento, Thálita Stefann Ribeiro; Universidade Estadual Paulista "Júlio de Mesquita Filho"; De Stéfani, Marta Verardino; Universidade Estadual Paulista "Júlio de Mesquita Filho"; Malheiros, Euclides Braga; Universidade Estadual Paulista "Júlio de Mesquita Filho"; Koberstein, Teresa Cristina Ribeiro Dias; Universidade Estadual Paulista "Júlio de Mesquita Filho".
This study aimed to evaluate the effect of vitamin E on reproductive responses of female tilapia (Oreochromis niloticus). To this, isonitrogenous and isocaloric diets with different levels of vitamin E supplementation (200, 300, 400, and 500 mg kg-1) were provided to groups of females for 90 days. Supplementation positively influenced the volume of eggs produced, spawning rate, fecundity, hatching rate, average production of larvae, reproductive frequency and survival. The fertilization rate, weight, and diameter of the eggs were not affected by supplementation. This study showed that 400 mg kg-1 vitamin E in the diet during the reproductive period of female Nile tilapia are sufficient to ensure the best reproductive performance, providing efficient...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ciências agrárias 5.06.03.00-0 α-tocopherol; Broodstock nutrition; Nutritional requirements; Nile tilapia Aquicultura.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/19830
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Energy and protein requirements of 3/4 Zebu × 1/4 Holstein crossbreds fed different calcium and phosphorus levels in the diet Arq. Bras. Med. Vet. Zootec.
Prados,L.F.; Valadares Filho,S.C.; Detmann,E.; Zanetti,D.; Santos,S. A.; Sathler,D.F.T.; Mariz,L.D.S.; Borges,A.L.C.C.; Nunes,A.N.; Rodrigues,F.C.; Amaral,P.M..
The aim of this study was to determine the nutritional requirements of energy and protein for maintenance and weight gain of crossbred cattle, as well as their efficiencies. Fifty 3/4 Zebu × 1/4 Holstein crossbred bulls with initial weights of 214±4kg and aged 11±0.2 months on average were used in this experiment. Four animals were used in the reference group; ten bulls were fed at the maintenance level; and the remaining 36 bulls were fed ad libitum and distributed in a completely randomized design in a 3×3 factorial arrangement, which had three feedlot periods (56, 112 or 168 days) and three calcium and phosphorus levels (low, medium and normal) in the diet. Four of the maintenance animals had their heat production measured by respirometry at the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crossbred bulls; Minerals; Nutritional requirements.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000200555
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Digestible lysine for broiler chickens with lower genetic potential grown on free-range system Ciência e Agrotecnologia
Nascimento,Eduardo Souza do; Lima,Cristina Amorim Ribeiro de; Brasil,Ronner Joaquim Mendonça; Machado,Noédson de Jesus Beltrão; Sousa,Felipe Dilelis de Resende; Corrêa,Gerusa da Silva Salles.
ABSTRACT Determining the actual lysine requirement is crucial as it is an essential amino acid and plays animportant role in the metabolism of broilers. In addition, it is the second limiting amino acid for broilers fed with rations formulated basedon corn and soybean meal. The aim of this study was to determine the digestible lysine requirement for male broilers with lower genetic potential for growth in a semi-confined system as well as to evaluate the effects of different values of digestible lysine on performance and carcass characteristics. A total of 300 broiler chickensfrom a commercial lineage EMBRAPA 041 were used with an average initial weight of 987 g. The broilers were distributed into 20 experimental units in a completely randomized design...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amino acids; Nutritional requirements; Performance; Yield.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000400454
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Levels of digestible isoleucine on performance, carcass traits and organs weight of gilts (15 - 30 KG) Ciência e Agrotecnologia
Castilha,Leandro Dalcin; Pozza,Paulo Cesar; Nunes,Ricardo Vianna; Lazzeri,Doglas Batista; Somensi,Marcelo Luiz; Pozza,Magali Soares dos Santos.
The ideal protein concept for pigs has allowed reducing levels of crude protein in the diet, since synthetic amino acids are included because the branched chain amino acids may be limiting. In order to determine the digestible isoleucine requirement for gilts from 15 to 30 kg, a performance assay was accomplished, using 40 crossbreed gilts of high genetic potential, averaging 15.00 ± 0.52 kg of body weight, alloted in a randomized blocks design, consisting of five treatments (0.45, 0.52, 0.59, 0.66, 0.73% of digestible isoleucine), four replicates and two animals per experimental unit. Performance traits were determined and at the end of the experiment one animal per experimental unit was slaughtered to determine carcass composition and organs weight....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Swine nutrition; Branched chain amino acids; Nutritional requirements; Carcass composition.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000400009
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Técnicas de manejo reprodutivo em bovinos de corte. Infoteca-e
VALLE, E. R. do; ANDREOTTI, R.; THIAGO, L. R. L. de S..
Na pecuária de corte, a exploração comercial do sistema de cria se constitui na fase do sistema produtivo, que envolve a criação e o manejo não só das matrizes bovinas e seus respectivos bezerros ate a desmama, mas também das novilhas de reposição e dos touros. Esse sistema tem por objetivo a produção de bezerros desmamados que representa a maior fonte de receita do criador. A venda de vacas descartadas e outros animais, apesar de contribuírem para a produção total, e uma fonte de receita marginal, mas também muito importante para o criador. Portanto, a viabilidade do sistema vai depender da eficácia e eficiência com que são utilizados os meios disponíveis para a otimização da produtividade. O escopo deste trabalho foi o de apresentar e discutir as...
Tipo: Livros Palavras-chave: Bovino de corte; Estação de monta; Sanidade; Breeding seasouns; Nutritional requirements; Management; Acasalamento; Eficiência Reprodutiva; Exigência Nutricional; Prenhez; Reprodução; Desmama; Animal health; Copulation; Beef cattle; Pregnancy; Reproduction; Reproductive performance; Weaning.
Ano: 2000 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325118
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Review and current status of the aquaculture potential for the mahimahi, Coryphaena hippurus ArchiMer
Kraul, S.
The mahimahi, Coryphaena hippurus , has excellent potential for aquaculture due to its fast growth (2 kg at 6 months, 9 kg at 1 year), good food conversion efficiency (30%, wet weight), high fecundity with natural captive spawns (200,000 eggs/female/2 days year round for a 1 year old female), and high price (US$ 9.00/kg wholesale in Hawaii).
Tipo: Text Palavras-chave: Copepoda; Rotifera; Coryphaena hippurus; Coryphaenidae; Pisces; Artificial feeding; Diets; Spawning; Fingerlings; Females; Eggs; Food; Food conversion; Hatcheries; Nutritional requirements; Growth.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1473.pdf
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Microparticulate feeds for Penaeid larvae ArchiMer
Kanazawa, A.
The mass production of penaeid larvae still depends on live foods such as diatoms, Chlorella and Artemia . However, it requires much facilities, maintenance expenses, and labor to produce a desired amount of life foods safely and constantly. Also, the nutritive value of planktonic organisms is occasionally variable and this makes the use of live food for mass culture restrictive. Therefore, it is necessary to develop microparticulate diets as a substitute for live foods to further increase the productivity of seed for shrimp culture.
Tipo: Text Palavras-chave: Penaeus japonicus; Nutritional requirements; Food organisms; Fish meal; Proteins; Nutritive value; Survival; Food; Diets; Feeding; Feed; Shrimp culture.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1463.pdf
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Définition d'un modèle d'élevage larvaire intensif pour la daurade Sparus auratus ArchiMer
Ounais-guschemann, Nadia.
This study defines rearing parameters for mass products of 30-day old post larvae. Continuous lighting (600 lux) optimizes the predatory activity and suppresses the feeding rhythm. For 4-5 mm larvae (15 days), food ingestion slows down if the prey concentration in the tank is below 5 rotifers/ml, while there is no such threshold for 6-7 mm larvae (22 days). The rotifer Brachionus plicatilis , between 100 and 200 mu m, is an adequate initial prey, it can be replaced by Artemia salina for 7-8 mm larvae (30 days). It is observed that free amino acids and essential fatty acids contents have a prominent role in larvae growth; docosahexaenoic acid (C22:6n-3) content could be determined. Finally, the development of the swim bladder is facilitated by the renewal...
Tipo: Text Palavras-chave: Sparus auratus; Pisces; Marine fish; Environmental diseases; Fatty acids; Amino acids; Controlled conditions; Juveniles; Culture tanks; Growth; Light effects; Nutritional requirements; Fish larvae; Syndrome de paroi; Nutrition; Alimentation; Lumière; Inflation primaire de la vessie natatoire; Sparus auratus; Elevage larvaire intensif; Poisson.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/these-1679.pdf
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Energy-protein management by some warmwater finfishes. ArchiMer
Luguet, P; Moreau, Y.
If warmwater finfish protein requirements as level in diet is low, absolute intake per day is similar to those of coldwater species. But relation of this requirement with specific growth rate differs for strictly warmwater fishes as Tilapias. Analysis of partition between protein and non-protein energy retention shows that these species with Clarias make a better use of non-protein energy provided and consequently improve their protein retention. Better carbohydrate digestibility and metabolism are propounded as part of the explanation.
Tipo: Text Palavras-chave: Clarias; Oreochromis mossambicus; Oreochromis aureus; Oreochromis niloticus; Tilapia; Cichlidae; Pisces; Nutritional requirements; Digestibility; Diets; Proteins; Metabolism; Carbohydrates; Nutrition; Feeding; Growth rate.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1424.pdf
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Influence du taux de proteines sur la croissance ponderale de Palaemon serratus (Pennant) elevee au laboratoire ArchiMer
Campillo, Albert; Luquet, P..
The quantitiative requirements for protein have been determined in P. serratus reared from the post-larval stage to the 4th month. It appears that the apparent optimum percentage of protein in the diet is a minimum of 60%. At the 8th month, the mean wt of prawn reared with the best artificial diet (diet IV) is only 49% of the wt of shrimp reared with the digestive gland of Patella as a diet. The prawns reared to 4th month on a low-protein diet then reared on a natural diet until the 8th month, show important compensatory growth. However, the prawns do not achieve the wt of the control population, their average wt representing only 16% of the controls.
Tipo: Text Palavras-chave: Crangon crangon; Penaeus japonicus; Homarus vulgaris; Palaemon serratus; Nutritional requirements; Growth; Proteins; Artificial feeding; Crustacean culture; Laboratory culture; Rearing.
Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-2029.pdf
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Protein requirements of Penaeid shrimp. ArchiMer
Kanazawa, A.
Proteins are indispensable nutrients for growth and maintenance of live of all animals. The optimum protein levels in diets for shrimps are different among the various species. Squid meal is an effective protein source for many penaeids. The effects of dietary protein, lipid, and carbohydrate levels on the growth and survival of larvae of Penaeus japonicus were examined by feeding trials using purified diet with carrageenan as a binder. As a result, the effects of protein levels on growth and survival of P. japonicus larvae varied with dietary carbohydrate levels but not dietary lipid levels.
Tipo: Text Palavras-chave: Penaeus japonicus; Malacostraca; Marine crustaceans; Amino acids; Larvae; Survival; Carbohydrates; Diets; Nutritional requirements; Proteins; Growth.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1485.pdf
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Mineral requirement of Penaeids ArchiMer
Piedad-pascual, F.
Marine shrimps absorb minerals from their aquatic environment aside from the minerals that come from the food they eat. Thus, the dietary requirement of shrimps for certain minerals will depend on the amounts and availability of these minerals in the aquatic environment. Dietary sources for growth may be necessary due to losses during moltings.
Tipo: Text Palavras-chave: Penaeus californiensis; Penaeus monodon; Penaeus japonicus; Penaeidae; Malacostraca; Juveniles; Moulting; Feed efficiency; Survival; Growth; Phosphorus; Calcium; Diets; Shrimp culture; Nutritional requirements.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1454.pdf
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Production of live prey for marine fish larvae ArchiMer
Kraul, S.
Tropical marine fish larvae vary in their requirements for live planktonic food. Selection of live prey species for culture depends on larval size and larval tolerance of water quality. This report describes some of the cultured prey species, and their uses and limits as effective food for fish larvae. Methods are presented for the culture of phytoplankton, rotifers, copepods, and other live feeds.
Tipo: Text Palavras-chave: Brine shrimp culture; Diets; Prey selection; Food organisms; Feeding; Growth; Rearing; Nutritional requirements; Fish larvae; Marine fish; Tropical fish.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1443.pdf
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Early weaning of marine fish larvae onto microdiets: Constraints and perspectives ArchiMer
Person, L.
Weaning small sized marine fish larvae at first feeding directly onto compound pellets is still difficult, while good results can be obtained when used in combination with live prey or when a prefeeding period on live prey is provided up to a size of about 2-3 mg. Microdiets are generally well ingested as their acceptability and visual detection may be improved using feeding activators and increasing good perception contrast. In theory, food may be processed to have a correct nutritional balance, selection of high digestible components is very important as larval digestive system is not fully functional during the first 2 or 3 weeks of life.
Tipo: Text Palavras-chave: Hatching; Fatty acids; Amino acids; Nutritional requirements; Feeding behaviour; Stomach; Digestive system; Enzymes; Digestion; Physiology; Diets; Pellet feeds; Feeding; Fish larvae.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1422.pdf
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Marine finfish pathology: Specific problems and research in the French West Indies ArchiMer
Gallet Desaint Aurin, D; Raymond, J; Vianas, Viviane.
The finfish species reared in marine intensive conditions in the French Caribbean Islands are imported (European seabass, American red drum and Oreochromis hybrids) or local (Carangids and Lutjanids) species. The European seabass (Dicentrarchus labrax ) is susceptible, during its first year of life, to a contagious disease characterized by whirling and hyperexcitability, associated with severe lesions of the brain, viral particles being pointed out in the damaged nervous cells.
Tipo: Text Palavras-chave: Growth; Hatcheries; Nutrient deficiency; Nutritional requirements; Pathology; Parasitic diseases; Fish culture.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1478.pdf
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Vitamin requirements of juvenile penaeid shrimp ArchiMer
Conklin, D.
The results of supplementing crustacean feeds with vitamins are examined specifically from the standpoint of shrimp culture. Micro-nutrients selected for discussion include: water-soluble vitamins of the B-complex, choline and inositol, vitamin C and the fat-soluble group of vitamins: A, D, E and K. Ways in which utilization of vitamins and ultimately dietary demand are altered by physiological state, conditions of culture, as well as factors which impact on feed levels, are explored.
Tipo: Text Palavras-chave: Penaeidae; Malacostraca; Diets; Marine crustaceans; Nutrients (mineral); Nutritional requirements; Juveniles; Feed; Vitamins.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1469.pdf
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L'aquaculture des crevettes, role de la nutrition ArchiMer
Guillaume, Julien.
Shrimp and prawn aquaculture is developing fast and amounts presently to 8% of world consumption. It concerns mainly various species of penaeids and is done with different techniques where feeding plays a variable role. This role is discussed both in the case of more or less extensive farming and in the case of intensive farming. The lack of knowledge in the field of nutrition itself is emphasized as well as the importance of feed technology both for juvenile foods and larval microcapsules or microparticles.
Tipo: Text Palavras-chave: Penaeidae; Malacostraca; Artificial feeding; Nutritional requirements; Feeding; Animal nutrition.
Ano: 1987 URL: http://archimer.ifremer.fr/doc/1987/acte-1408.pdf
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Reference diet for crustaceans: Principle of experimentation. ArchiMer
Castell, J.
Feeding trials were conducted with over 22 different crustacean species to compare the potential use of two diets as Standard Reference Diets (SRD) in crustacean research. The two diets (BML 81 S, a casein/albumin based formula developed at the University of California, Bodega Marine Laboratory, and HFX CRD 84, a crab protein concentrate based diet formulated at the Canadian Department of Fisheries and Oceans Halifax Laboratory) were about equal in performance for most species tested. Though neither diet was an ideal SRD, the HFX CRD 84 formulation based upon a purified protein of marine origin was accepted as the interim SRD for use in aquatic crustacean studies.
Tipo: Text Palavras-chave: Astacus astacus; Penaeus orientalis; Homarus americanus; Crustacea; Rearing; Carbohydrates; Lipids; Proteins; Experimental research; Feeding experiments; Nutritional requirements; Diets.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1503.pdf
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