Modelos Matemáticos Para Estimativa Da Cinética De Fermentação Ruminal Do Pseudofruto Do Cajueiro Através Da Técnica in Vitro Semi-Automática De Produção De Gases / Mathematical Models to Estimate the Cashew Tree False Fruit Ruminal Fermentation Kinetic Through the Semi-Automatic in Vitro Gas Production Technique

Azevêdo, Márcia Mourão Ramos; Vasconcelos, Vânia Rodrigues; Abdalla, Adibe Luiz; Sarmento, José Lindenberg Rocha; Alves, Arnaud Azevêdo; Bueno, Ives Cláudio da Silva; Magalhães, André Luíz Rodrigues; Lima, Jucelane Salvino de

doi:10.34117/bjdv6n9-711

Cited by 1 publication

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References 25 publications

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“…The diets were prepared according to the recommendations of NRC (2007) for lambs with 30 kg of body weight (BW) and a daily gain of 300 g. The diets were based on roughage (corn silage -10.01% CP, 56.7% NDF, 5.6% mineral matter [MM], and 2.8% EE) and concentrated mixtures of SBM (50.78% CP, 9.8% NDF, 5.2% MM, and 2.4% EE), corn (9.72% CP, 4.2% NDF, 2.7% MM, and 8.80% EE), SFM and minerals (Table 1). Samples of experimental diets were incubated, and the pressure and volume of the gases were measured according to the methodology described by Azevedo et al (2020), with some adaptations. The diets were incubated in bottles (160 mL), previously injected with CO 2 , according to the semi-automatic in vitro gas production technique.…”

Section: In Vitro Digestibility Trialmentioning

confidence: 99%

Use of sunflower meal as a protein source in diets of growing lambs

Geraseev,

Silva,

Chaves

et al. 2023

Revista Brasileira De Zootecnia

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This study aimed to evaluate the effects of sunflower meal (SFM) inclusion on the performance, nutrient digestibility, and respirometric parameters in sheep. Twenty-four Dorper × Santa Inês uncastrated males, with an average age of 5 mo and initial body weight (BW) of 27.91±6.0 kg, were distributed in a randomized block design with four treatment diets containing 0, 100, 200, and 300 g of SFM/kg of total dry matter, replacing soybean meal. Intake, weight gain, ingestive behavior, and in vitro digestibility were evaluated according to the SFM inclusion. The respirometric parameters were evaluated in an open-circuit respirometric chamber. There was a quadratic response in dry matter intake expressed according to the SFM inclusion, with minimum points of 90.56 g/kg 0.75 BW for inclusion levels of 96 g of SFM/kg. A linear decrease in the in vivo digestibility of dry matter, neutral detergent fiber, and non-fibrous carbohydrate and in vitro fermentation of dry matter and fibrous carbohydrates was observed in response to SFM inclusion. These results reflect the higher fiber content of the byproduct, which reduced the non-fibrous carbohydrates in the diets. Despite the change in nutrient availability, average daily gain (299 g/day), O 2 consumption (26.24 L/kg 0.75 BW), and CH 4 production (2.25 L/kg 0.75 BW) were not influenced by the SFM inclusion, indicating that changes in the nutritional value of the diet did not affect the animals' energetic metabolism. Sunflower meal inclusion decreased the digestibility but did not affect the animal gain and the respirometric parameters. The SFM can replace soybean meal in the diet of growing lambs; however, it has a maximum inclusion point of 88 g SFM/kg for feed conversion, which is a necessary factor for evaluating the replacement cost.

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Section: In Vitro Digestibility Trialmentioning

confidence: 99%