Consumo e digestibilidade em ovinos alimentados com dietas contendo grão de milho moído, inteiro ou tratado com uréia, com três níveis de concentrado

Bolzan, Ivonir Taschetto; Sánchez, Luis Maria Bonnecarrère; Carvalho, Paulo Afonso; Velho, João Pedro; Lima, Lisiane Dorneles de; Morais, Juciléia Aparecida da Silva; Cadorin, R.L.

doi:10.1590/s0103-84782007000100037

Cited by 18 publications

(11 citation statements)

References 8 publications

(7 reference statements)

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“…Apparent digestibility of dry matter (DMD), 0.6204 was lower than 0.6914 obtained by Bolzan et al (2007), using the 50:50, roughage:concentrate, B. brizantha hay and concentrate with corn grain. Ítavo et al (2009) assessed diets containing corn and sorghum high moisture silages and verified DM digestibility equal to 0.5632, lower than that obtained in this experiment.…”

Section: Resultsmentioning

confidence: 70%

Green propolis extract as additive in the diet for lambs in feedlot

et al. 2011

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-The objective of this paper is to assess the effects of the inclusion of different levels of green propolis extract in the diet of lambs in feedlot on ingestive behavior, nutrients digestibility, physiological parameters and performance.Eight lambs were distributed in double Latin Square with four treatments, corresponding to the inclusion levels (4, 8, 12, 16 mL) of green propolis ethanolic extract (30 g of ground crude propolis was infused in a 100-mL hydroalcoholic solution, 700 mL/L). The diets were composed of Brachiaria brizantha cv. MG5 hay and a commercial concentrate (roughage:concentrate ratio was 50:50) in a dry matter basis. No effect was observed on dry matter (31.2 g/kg of BW), crude protein, ether extract, neutral detergent fiber, non-fibrous carbohydrates and total digestible nutrients content (TDN) intakes. No significant effect was seen on the digestibility coefficients, presenting an average of 65.94% of TDN. The green propolis extract levels do not have a significant effect on behavior or physiologic parameters. Seeking to maximize feeding efficiency, the inclusion of 7.60 mL/day (2.1189 mg of dry matter and 0.1123 mg of flavonoids) of green propolis extract in the diet of lambs in feedlot is recommended.

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Section: Resultsmentioning

confidence: 70%

Green propolis extract as additive in the diet for lambs in feedlot

et al. 2011

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“…The reduced consumptions of EE, NDF and ADF are related to the lower DMI and OMI, which in turn may have been affected by the proportional increase of NFC (p <0.05) and by the lower content of other nutrients in the diet when greater proportions of concentrate were offered to the lambs. Bolzan et al (2007) also observed the downward trend of the NDF intake as the concentrate level increased for feedlot lambs fed with diets with increasing levels of concentrate. In the finishing phase, concentrate inclusion levels had a negative linear effect (p <0.05) on the intake of DM, OM, EE, NDF and ADF, in g.animal -1 .…”

Section: Variablesmentioning

confidence: 68%

Growing and finishing crossbred feedlot ewe lambs fed with increasing levels of concentrate in the diet

Ribeiro

Morais

Souza

et al. 2016

SCA

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To maximize economic gain in sheep production systems it is critical to adjust feedlot diets to maximize performance while minimizing feed, and especially concentrate, waste. Little information is available on ideal diets for crossbred ewe lambs. Therefore, this study aimed to evaluate the performance of feedlot crossbred ewe lambs, and the digestibility of diets, with increasing levels of concentrate during the growing and finishing phases. Twenty-four crossbred Texel × Pantaneira Texel ewe lambs were confined and fed Tifton hay with increasing levels of concentrate in the diet (20, 40, 60 and 80%) for individual evaluation of dry matter intake (DMI), digestibility of diets, average daily gain (ADG) and feed efficiency (FE). Animals were slaughtered at 47 kg. In the growing phase, the inclusion of concentrate in the diets (1176 g.kg -1 ) did not change DMI (p > 0.05). Concentrate levels had a quadratic effect (p < 0.05) on the dry matter digestibility coefficient (DMDC) and on total digestible nutrients (TDN) during the growing phase. In the finishing phase, there was a negative linear effect of concentrate levels on DMI (p < 0.05), but TDN intake was similar among the experimental diets (p > 0.05). DMDC and TDN values displayed a quadratic behavior (p < 0.05), plateauing at 60% concentrate. ADG and FE increased as concentrate was added to the diet in the growing phase (p < 0.05). During the finishing phase, lamb performance was similar (p > 0.05) for different diets. Thus, the use of 60% concentrate in the confined crossbred ewe lamb diet during growing and 20% concentrate during finishing is recommended. Key words: Feedlot. Digestibility coefficient. Intake. Weight gainh. ResumoPara maximizar o ganho econômico em sistemas de produção de ovinos é fundamental ajustar as dietas de confinamento para aumentar o desempenho e minimizar os custos e desperdícios com alimentação, especialmente com concentrado. Existem poucas informações sobre avaliação de dietas ideais para cordeiras mestiças. Objetivou-se avaliar o desempenho de cordeiras mestiças confinadas e a digestibilidade de dietas com níveis crescentes de concentrado durante as fases de recria e terminação. Foram confinadas 24 fêmeas mestiças Texel (1/2 Pantaneira x 1/2 Texel) alimentadas com feno de capim-Tifton e níveis crescentes de concentrado na dieta (20, 40, 60 e 80%) para avaliação individual do consumo de matéria seca (CMS), digestibilidade dos nutrientes das dietas, ganho médio diário (GMD) e eficiência alimentar (EA). Os animais foram abatidos com 47 kg. Na fase de recria, o CMS não foi alterado (p > 0,05) pela inclusão de concentrado nas dietas (1176 g kg -1 ). Foi observado efeito quadrático dos níveis de concentrado (p < 0,05) sobre os coeficientes de digestibilidade de matéria seca (CDMS) e nutrientes digestíveis totais (NDT) durante a recria. Na fase de terminação, houve efeito linear negativo dos níveis de concentrado sobre o CMS (p < 0,05), porém a ingestão de NDT foi similar entre as dietas experimentais (p > 0,05). O CDMS e o valor...

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“…Bolzan et al (2007) , the diet needs to optimize the voluntary intake, since the pass rate is between 5% and 8% per h and reduces feed utilization (Linden et al, 2014). Feeds with relatively high degradation rates (fraction c) are those that increase the voluntary intake (Pereira et al, 2003).…”

Section: Resultsmentioning

confidence: 99%

A meta-analysis on in situ ruminal degradability of grains and meals for energy concentrate feeds

et al. 2018

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One factor that may interfere with rumen fermentation is the physical form of feed, because of the colonization by bacteria during processing. Here, we aimed to perform a meta-analysis and evaluate the in situ ruminal degradability of energy feeds with distinct physical forms (grain vs. meal). We created a database, comprising 39 treatments from 12 studies conducted in Brazil, and focused on parameters for the potential and effective degradability of dry matter (DM) and crude protein (CP) of energy feeds. The results showed that there was no difference (P > 0.05) in any of the degradability parameters of DM and CP between the grain and meal. However, the readily soluble fraction of DM in the grain showed a higher degradability trend (P = 0.0888). Overall, it was concluded that the processing of energy feeds does not modify the degradability parameters of DM and CP, and that further studies need to be conducted in Brazil to evaluate the in situ ruminal degradability of starch.

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Consumo e digestibilidade em ovinos alimentados com dietas contendo grão de milho moído, inteiro ou tratado com uréia, com três níveis de concentrado

Abstract: In this study corn grain was used as whole, ground or urea treated grain to prepare diet containing 30, 50

Cited by 18 publications

References 8 publications

Green propolis extract as additive in the diet for lambs in feedlot

Green propolis extract as additive in the diet for lambs in feedlot

Growing and finishing crossbred feedlot ewe lambs fed with increasing levels of concentrate in the diet

A meta-analysis on in situ ruminal degradability of grains and meals for energy concentrate feeds

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