Consumo de nutrientes e desempenho de cordeiros em confinamento alimentados com dietas com polpa cítrica úmida prensada em substituição à silagem de milho

Pereira, Marcelo Maia; Ribeiro, Edson Luís de Azambuja; Mizubuti, Ivone Yurika; Rocha, Marcelo Peres; Kuraoka, Juliana Tiemi; Nakaghi, Eduardo Yukio Okada

doi:10.1590/s1516-35982008000100020

Cited by 24 publications

(17 citation statements)

References 14 publications

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“…The mean intake values of DM, organic matter, ether extract, neutral detergent fiber (NDF), and total carbohydrate (TC) expressed as a function of metabolic weight are close to the results found in the literature (ALVES et al, 2003;MOREIRA et al, 2001;PEREIRA et al, 2008;VÉRAS et al, 2005). The intake control of nutrients is attributed to the physical effect of the rumen fill represented by high NDF intakes both in % of BW and in g kg -1 of BW 0.75 .…”

Section: Resultssupporting

confidence: 82%

Citrus pulp in lamb diets: intake, digestibility, and ruminal parameters

et al. 2015

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This study aimed to evaluate the viability of replacing corn meal with citrus pulp (0, 25, 50, 75, and 100 % dry matter of corn meal) by evaluating several nutritional parameters such as intake and digestibility of nutrients, and ruminal fermentation parameters. The diets were formulated to be isoproteic with a roughage:concentrate ratio of 60:40. Five crossbred lambs with an initial average weight of 26.1 ± 1.8 kg were used and distributed in a 5 x 5 Latin Square design. For digestibility of nutrients was carried out to feed, orts, and feces collection. The evaluated nutrients were dry matter, crude protein, ether extract, ash, neutral detergent fiber, fiber acid detergent and lignin. Were determined nitrogen and carbohydrate fractions, and ruminal fermentation parameters (N-NH 3 and ruminal pH). The results were subjected to analysis of variance and regression analysis (t-test; α = 0.05). Citrus pulp inclusion in the diets did not affect intake and digestibility of nutrients, or the pH and the NH 3 -N content of the rumen fluid. Citrus pulp can be used as a total substitute for corn in concentrate or up to 26.5% in the total ration for lambs (dry basis). Key words: By-product, NH 3 , nutrients, pH, sheep ResumoObjetivou-se avaliar a viabilidade da substituição do milho por polpa cítrica peletizada (0; 25; 50; 75 e 100 % da MS de milho) em dietas para cordeiros, com base em variáveis nutricionais. utilizados cinco borregos mestiços com peso inicial médio de 26,1±1,8 kg distribuídos segundo um delineamento em quadrado latino 5 x 5. Para a determinação da digestibilidade dos nutrientes foi realizada a coleta de amostras de alimentos oferecidos e sobras e coleta total de fezes. Os nutrientes avaliados foram matéria seca, proteína bruta, extrato etéreo, cinzas, fibra em detergente neutro, fibra em detergente ácido e lignina. Foram determinadas as frações nitrogenadas e de carboidratos, e os parâmetros de fermentação ruminal (N-NH3 e pH ruminal). Os resultados foram interpretados de acordo com a análise de variância, e as médias estudadas por meio de análise de regressão (teste "t"; α=0,05). Não houve efeito da inclusão de polpa cítrica à dieta sobre o consumo, coeficientes de digestibilidade dos nutrientes, bem como no pH e concentrações de N-NH 3 no líquido ruminal. O consumo de nutrientes foi capaz de atender as exigências nutricionais preconizadas para a referida categoria. A polpa cítrica pode ser utilizada como substituta total do milho na mistura concentrada ou em até 26,5% da ração total (base seca) para cordeiros.

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Section: Resultssupporting

confidence: 82%

Citrus pulp in lamb diets: intake, digestibility, and ruminal parameters

et al. 2015

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“…This consumption may have been infl uenced by the size of crambe cake particles, which could aff ect the mean time of feeding retention, and consequently infl uence the NDF consumption (PEREIRA et al, 2008). In the present study, time destined for feeding (min day -1 ) was affected by the feeding regimens (Table 2), with lambs under the voluntary regimen taking more time to ingest the feed, thus affecting the consumption of dry matter (g day -1…”

Section: Resultsmentioning

confidence: 67%

Feeding behavior in lambs fed diets containing crambe cake

Syperreck

Mizubuti

Pereira

et al. 2016

SCA

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It was evaluated the feeding behavior of lambs fed diets containing 30% sorghum silage and 70% crambe cake (30:70 diet), and 70% sorghum silage and 30% crambe cake (70:30 diet) under voluntary and controlled consumption. The experimental design used was a 4 × 4 Latin square, with four animals, four periods, and four treatments; feeding behavior was determined by observation. The results indicated that animals fed the 30:70 diet showed higher DM and NDF (g day -1 ) than those fed the 70:30 diet. Animals fed the 70:30 diet showed longer feeding times (h kg -1 DM), mastication (min kg -1 DM and min kg -1 NDF), rumination (min day -1 and min kg -1 DM), and the largest number of mericics chewing per bolus; however, a higher feed efficiency (g DM h -1 ) was observed in the 30:70 diet group. Furthermore, animals feeding voluntarily had higher DM intake and chewed for longer. Therefore, the combined results indicated that crambe cake could be used in the diet of sheep without affecting feeding behavior.

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“…Este tipo de comportamiento (cuadrático) fue semejante a los verificados por Ítavo et al (2000) al evaluar la substitución del ensilado de maíz por el bagazo de naranja en la alimentación de vacas lecheras. De igual manera se compara favorablemente con lo constatado por Pereira et al (2008), quienes evaluaron el efecto de la sustitución del ensilado de maíz por la pulpa cítrica húmeda prensada en el rendimiento de corderos de la raza Santa…”

Section: Resultados Y Discusiónunclassified

“…De acuerdo a Allen (2000) citado por Pereira et al (2008) al proveer cambios en la fibra detergente neutro (FDN) de la ración por medio de la substitución de forraje por alimento concentrado, se espera que la ingestión de la MS tenga comportamiento cuadrático. En este caso el consumo aumenta en virtud de la reducción de la limitación física del tracto gastrointestinal, caracterizada por el hinchamiento del estómago, hasta la ocurrencia del consumo excesivo de energía, que promueve el control del consumo por el mecanismo metabólico.…”

Section: Resultados Y Discusiónunclassified