Estratégias na suplementação de vacas leiteiras no semi-árido do Brasil

Ferreira, Marcelo de Andrade; Silva, Fabiana Maria da; Bispo, Safira Valença; Azevedo, Marcílio de

doi:10.1590/s1516-35982009001300032

Cited by 66 publications

(48 citation statements)

References 7 publications

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“…The high degradability of spineless cactus has become known for maximizing the rumen fermentation capacity and increasing microbial protein synthesis, SCFA production and, consequently, nutrient conduction for animals (Ferreira et al, 2009). It was found that maximum production of total SCFA (57.7 μmol mL -1 , Table 4) was obtained with 63.7% replacement of wheat bran by spineless cactus.…”

Section: Discussionmentioning

confidence: 99%

Spineless cactus as a replacement for wheat bran in sugar cane-based diets for sheep: intake, digestibility, and ruminal parameters

et al. 2016

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-The objective of this study was to evaluate the effect of replacing wheat bran by spineless cactus (0, 25, 50, 75, and 100%) in sugar cane-based diets on intake and nutrient digestibility and ruminal parameters of sheep. Five sheep (Santa Inês; average initial weight of 34.0±3.6 kg) were fitted with cannulas in the rumen and then assigned to a 5 × 5 Latin square design. The maximum dry matter (DM; 1414 g d −1 ), digestible organic matter (658 g d −1 ), and neutral detergent fiber corrected for ash and protein (NDFap; 425 g d −1 ) intakes were estimated by replacing 80.2, 89.9, and 50.5% of wheat bran. Dry matter and crude protein digestibility increased by 0.60 and 0.85 g kg -1 of DM. With the replacement of 57.1 and 62.2% of wheat bran, a maximum rate of NDF ingestion (0.70 h −1 ) and NDF ruminal pool (7.31 g) was obtained. Rumen pH increased with the inclusion of spineless cactus, while the maximum concentration of ammonia N (33.3 mg dL −1 ) and total volatile fatty acids (57.7 μmol mL −1 ) were estimated at the levels of 72.3 and 63.7% of replacement of wheat bran. It is recommended to replace 63% of wheat bran by spineless cactus in sugar cane-based diets, to promote better animal performance.

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Section: Discussionmentioning

confidence: 99%

Spineless cactus as a replacement for wheat bran in sugar cane-based diets for sheep: intake, digestibility, and ruminal parameters

et al. 2016

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“…The Brazilian semiarid region is characterized by high temperatures, high evaporation rate and marked irregularity in rainfall distribution (both in time and space), with long drought periods (FERREIRA et al, 2009). These factors make livestock vulnerable to forage resource seasonality.…”

Section: Introductionmentioning

confidence: 99%

Influence of the period of year on the chemical composition and digestibility of pasture and fodder selected by goats in caatinga

Silva

Magalhães

et al. 2017

Rev. bras. saúde prod. anim.

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SUMMARY This study aimed to verify the influence of months on chemical composition and in vitro digestibility of pasture and forage selected by goats in the semiarid region of Brazil’s Pernambuco state. Six male goats fistulated in the rumen were used in a completely randomized design. Forage collection was conducted in herbaceous and shrub/tree layers, in order to simulate goat grazing, and materials were separated into leaves and branches. Extrusa and pasture collections were held in November, January and February/March. There was collection month (P <0.05) effect for pasture on dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), with average values of 458.27g/kg NM and 155.46, 521.30 and 390.13g/kg DM, respectively. For the stem (P <0.05) for DM, Organic matter (OM), mineral matter (MM), ethereal stratum (EE), ADF, acid detergent unavailable protein (AIP), total carbohydrates (TCHO) and dry matter in vitro digestibility (DMIVD), with average values of 487.47g/kg NM and 930.80, 69.07, 20.67, 440.30 and 63.78g/kg DM, respectively. About the extrusa, there was collection time effect (P <0.05) on the DM, OM, MM, CP, EE, AIP, TCHO, Non-fibrous carbohydrates (NFC) and DMIVD, with average values of 84.53g/kg DM, 863.03, 136.97, 152.90, 33.60, 14.07, 676.37 and 55.35g/kg DM, respectively. Rainfall changes in the rainy season in the caatinga altered pasture quality, causing changes in the diet selected by goats, mainly in DM, CP, CNF and DMIVD.

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“…Thus, during the dry season, the amount of grazable biomass is dramatically reduced and the flocks are affected by forage scarcity (Santos, Lira et al, 2010;Pereira Filho, Silva, & Cézar, 2013). Some alternatives have been suggested to minimize the impact of variation in forage allowance on flocks, namely, forage conservation and use of forage adapted to semi-arid areas (Ferreira, Silva, Bispo, & Azevedo, 2009). The spineless cactus occupies a prominent position due to its productivity, nutritional value and distribution in the Brazilian semi-arid.…”

Section: Introductionmentioning

confidence: 99%

<b>Fresh or dehydrated spineless cactus in diets for lambs

Andrade

Batista

Carvalho

et al. 2016

Acta Sci. Anim. Sci.

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ABSTRACT. The objective was to evaluate the effect of partial or total replacement of Tifton 85 hay with fresh or dehydrated spineless cactus on performance and body weight components of sheep. Thirty hair lambs, with 19 kg ± 0.35 kg initial weight, were randomly divided into five treatments, namely: Tifton 85 Hay (HA); Tifton 85 Hay + fresh spineless cactus (HAFC); Tifton 85 Hay + dehydrated spineless cactus (HADC); fresh spineless cactus (FC); dehydrated spineless cactus (DC). In addition to the spineless cactus and hay, the complete mixture contained soybean meal, mineral salt and limestone in all treatments. Animals were confined for 75 days and then slaughtered. The weight of body components was recorded. Dry matter intake, total digestible nutrients intake and voluntary water intake were higher (p < 0.05) for the DC and HADC treatments. The average daily gain was 118 g day -1and body weight at slaughter of 25.8 kg were not influenced (p > 0.05) by treatments. The cold carcass weight, rib eye area, weight and yield of the skin, liver, kidney and large intestine were higher (p < 0.05) for the DC and HADC treatments. Partial or total replacement of Tifton 85 hay with fresh or dehydrated spineless cactus, in complete diets for sheep, increases the weight of the cold carcass and non-carcass components.Keywords: cacti, body weight components, cactus meal.Palma forrageira in natura ou desidratada na dieta de ovinos RESUMO. Objetivou-se avaliar o efeito da substituição parcial ou total do feno de Tifton 85 por palma forrageira in natura ou desidratada sobre o desempenho e componentes do peso corporal de ovinos. Foram distribuídos aleatoriamente 30 cordeiros deslanados, com peso vivo inicial de 19 kg ± 0,35 kg, em cinco tratamentos, a saber: feno de Tifton 85 (FE); feno de Tifton 85 + palma in natura (FEPA); feno de Tifton 85 + palma desidratada (FEPD); palma in natura (PA); palma desidratada (PD). Além da palma e feno ofertou-se, na forma de mistura completa, farelo de soja, sal mineral e calcário em todos os tratamentos. Os animais foram mantidos confinados durante 75 dias; decorridos esse período foram abatidos e tiveram os pesos dos componentes corporais registrados. O consumo de matéria seca, nutrientes digestíveis totais e ingestão voluntária de água foram maiores (p < 0,05) para os tratamentos PD e FEPD. O ganho médio diário foi de 118 g dia -1 e o peso corporal ao abate de 25,8 kg e não foram influenciados (p > 0,05) pelos tratamentos. O peso de carcaça fria e área de olho de lombo foram menores (p < 0,05) para dieta FE. A substituição parcial ou total do feno de Tifton 85 por palma forrageira (in natura ou desidratada) melhora o desempenho e as características de carcaça de ovinos.Palavras-chave: cactácea, componentes do peso corporal, farelo de palma.

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Estratégias na suplementação de vacas leiteiras no semi-árido do Brasil

Cited by 66 publications

References 7 publications

Spineless cactus as a replacement for wheat bran in sugar cane-based diets for sheep: intake, digestibility, and ruminal parameters

Spineless cactus as a replacement for wheat bran in sugar cane-based diets for sheep: intake, digestibility, and ruminal parameters

Influence of the period of year on the chemical composition and digestibility of pasture and fodder selected by goats in caatinga

<b>Fresh or dehydrated spineless cactus in diets for lambs

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