Fontes e níveis de proteína em rações iniciais para leitões desmamados aos 21 dias de idade

Lopes, Eurípedes Laurindo; Junqueira, Otto Mack; Araujo, Lúcio Francelino; Nunes, Romão da Cunha; Duarte, Karina Ferreira

doi:10.1590/s1516-35982004000900015

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…Levels of TFWM from 0 to 10% did not affect the FBW and ADWG of pigs (P < 0.05), but upon inclusion of 15% TFWM in the feed, there was a decrease in the values of both FBW and ADWG. Lopes et al (2004) compared the performance of barrows from 6 to 15 kg fed conventional diets or 6% fish meal inclusion substituted for powdered whey, and observed that the diet containing fish meal provided an ADWG of 370 g versus 356 g for the conventional diet.…”

Section: Resultsmentioning

confidence: 99%

Nutritional Evaluation of Tilapia Filleting Waste Meal for Swine in the Nursery Phase

et al. 2016

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-Three experiments were conducted to determine the nutritional composition of tilapia filleting waste meal (TFWM) for pigs in the initial phase. In the first experiment, the chemical composition and the values of digestible and metabolizable energy of TFWM were determined using 10 pigs (15.10 ± 0.74 kg), distributed in cages for metabolic research (2 treatments X 5 replicates). The TFWM replaced 20% of the reference diet based on corn and soybean meal. In the second experiment, the ileal digestibility coefficients of amino acids present in TFWM were determined, using chromic oxide as a marker, through the method of sacrifice, using 10 pigs (15.00 ± 0.27 kg), distributed in cages for metabolic research (2 treatments X 5 replicates). Treatments consisted of a basal diet and one without protein. In the third experiment, the performance of pigs fed diets containing different concentrations of TFWM (0, 5, 10, 15 and 20%) was evaluated. Forty pigs (15.00 ± 0.87 kg), distributed in pairs in nursery pens (5 treatments X 4 replicates) were used. The values of digestible and metabolizable energy corresponded to 3,632 and 3,260 kcal/kg, respectively. Inclusion of up to 10% TFWM in the diet of barrows from 15 to 30 kg did not affect the average daily gain and feed conversion of the animals. RESUMO -Foram realizados três experimentos para determinar a composição nutricional da farinha dos resíduos industriais de filetagem da tilápia (FRIFT) para suínos, machos castrados, em fase inicial. No primeiro, foi determinada a composição bromatológica e valores de energia digestível e metabolizável da FRIFT, utilizando-se 10 suínos (15,10 kg ± 0,74), distribuídos em gaiolas para estudos metabólicos (2 tratamentos X 5 repetições). A FRIFT substituiu em 20% a ração referência, à base de milho e farelo de soja. No segundo experimento, foram determinados os coeficientes de digestibilidade ileal dos aminoácidos da FRIFT, empregando-se óxido crômico como indicador, pelo método do sacrifício, tendo sido utilizados 10 suínos (15,00 kg ±0,27), distribuídos em gaiolas para estudos metabólicos (2 tratamentos X 5 repetições). Os tratamentos consistiram de uma ração basal e outra sem proteína. No terceiro experimento, foi avaliado o desempenho de suínos alimentados com rações contendo diferentes níveis de FRIFT (0, 5, 10, 15 e 20%). Foram utilizados 40 suínos (15,00 kg ±0,87), distribuídos aos pares em baias de creche (5 tratamentos X 4 repetições). Os valores de energia digestível e metabolizável corresponderam a 3.632 e 3.260 kcal/kg, respectivamente. A inclusão de até 10 % de FRIFT na dieta de suínos machos castrados, dos 15 aos 30 kg, não alterou o ganho de peso diário e a conversão alimentar dos animais.Palavras-chave: Alimentos alternativos. Valores energéticos. Aminoácidos digestíveis.

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Section: Resultsmentioning

confidence: 99%

Nutritional Evaluation of Tilapia Filleting Waste Meal for Swine in the Nursery Phase

et al. 2016

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“…Because these diets tend to meet more of the characteristics o f omnivorous animals, the bull-frog juvenile (Figures 4, 5 and 6), when the intestinal structure of these animals was compared to healthy frogs (George et al, 1998). The loss or flattening of the longitudinal folds contradicts literature reports of a sharp reduction in the height of the intestinal villi in weaned piglets, caused by supplying a diet of low nutritional value (Lopes et al, 2004). Furthermore, it has been shown that adult bull-frogs which have suffered nutritional intoxication with protein deficiency present peeling and atrophy of the longitudinal folds of the intestinal epithelium (Hipólito et al, 2001).…”

Section: Resultsmentioning

confidence: 90%

Histopathological alterations in bullfrog juveniles fed commercial rations of different crude protein levels

et al. 2009

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-The relationship between the quality of dietary crude protein and health of bullfrog juveniles (Lithobates catesbeianus) was evaluated by necropsy and histopathological examination of animals. The histopathology results showed that animals fed different feeds, regardless of CP levels, presented lymphocytary hepatitis, colitis and flattened microvillosities; kidneys with areas of tubulonephrosis and renal tubule calcification; myocarditis and cardiac muscular fiber dissociation. Such injuries suggested a degenerative nutritional process, with development of inflammatory processes spread to all the organs. These findings suggested that the animals had been fed with proteins of low biological value, indicating, apparently, poor feed quality, that harmed the health of the frogs and, consequently, their performance. Complementary studies are necessary to understand the biochemical behavior of the bullfrog in its second phase of life, supplying data for a better understanding of the nutrition of these animals.Key Words: animal nutrition, aquaculture, frog farming Alterações histopatológicas em imagos de rã-touro alimentados com diferentes rações comerciaisRESUMO -Avaliou-se a relação entre a qualidade da proteína bruta da ração e a sanidade de imagos de rã-touro (Lithobates catesbeianus) por meio de necropsia e exame histopatológico dos animais. Independentemente do nível de proteína bruta da ração, os animais apresentaram hepatite linfocitária; colite e achatamento das microvilosidades; rins com áreas de tubulonefrose e calcificação de túbulos renais; miocardite e dissociação das fibras musculares cardíacas. Essas lesões sugerem quadro degenerativo nutricional, com desenvolvimento de processos inflamatórios que se difundem para todos os órgãos. Esses achados indicam que os animais foram alimentados com proteínas de baixo valor biológico, como resultado de má qualidade das rações, o que compromete sua sanidade e seu desempenho. Estudos complementares são necessários para compreensão do comportamento bioquímico de rãs-touro em sua segunda fase de vida e para o entendimento da nutrição desses animais.

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Partial replacement of soybean meal with different protein sources in piglet feed during the nursery phase

Carvalho

Oliveira

et al. 2019

Asian-Australas J Anim Sci

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ObjectiveEvaluate the partial replacement of soybean meal with different protein sources in piglet feed during the nursery phase in terms of digestibility of feed, nitrogen balance, growth performance and blood parameters.MethodsExperiment I involved 24 crossbred entire male pigs with an initial body weight (BW) of 18.28±0.7 kg and used a randomized complete block design consisting of 3 treatments (fish meal, FM; soybean protein concentrate, SPC; and soybean meal, SBM) and 8 replicates, with 1 pig per experimental unit. Experiment II involved 1,843 crossbred male and female pigs with an initial BW of 6.79±0.90 kg and was based on a completely randomized design with a 2×3 factorial arrangement (2 sexes and 3 protein sources) and 13 replicates.ResultsThe results of Exp. I indicate effects (p<0.05) of dietary protein sources on digestible protein (FM, 17.84%; SPC, 16.72%, and SBM, 18.13%) and on total nitrogen excretion (TNE, g/kg BW0.75/d) in which pigs fed with SBM-based feed had TNE values that were 5.36% and 3.72% greater than SPC and FM, respectively. In the Exp. II, there was difference (p<0.01) between sexes in the pre-starter I and starter phases, and total period in average daily feed intake (ADFI), which were greater in females, and between the protein sources, ADFI, final weight and daily weight gain. For urea in the pre-starter II and starter phases and glucose in the pre-starter II phase, there was a difference (p<0.05) between protein sources and between sexes, in starter phase in urea concentrations (females: 57.11 mg/dL and males: 50.60 mg/dL).ConclusionThe use of SBM as only protein source influences larger TNE (g/kg BW0.75/d), reduces the growth performance of piglets and increases plasma urea concentrations in pre-starter II phase.

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Fontes e níveis de proteína em rações iniciais para leitões desmamados aos 21 dias de idade

Cited by 3 publications

References 14 publications

Nutritional Evaluation of Tilapia Filleting Waste Meal for Swine in the Nursery Phase

Nutritional Evaluation of Tilapia Filleting Waste Meal for Swine in the Nursery Phase

Histopathological alterations in bullfrog juveniles fed commercial rations of different crude protein levels

Partial replacement of soybean meal with different protein sources in piglet feed during the nursery phase

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