Efeito da inclusão da torta de macaúba na população de protozoários do rúmen de vacas leiteiras

Santos, Andreza Negreli; Magalhães, D. Q; Azevedo, Rafael Alves de; Vieira, Ivan; França, Dagberto; Geraseev, Luciana Castro; Duarte, Eduardo Robson

doi:10.1590/1678-4162-8017

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…The use of agro-industrial residues in ruminant feed has increased due to the greater availability of these by-products (Santos et al 2015), the possibility for reducing feeding costs by replacing traditional foods (Oliveira et al 2012), and the reduced environmental effects because most of the by-products are environmental waste management problems.…”

Section: Introductionmentioning

confidence: 99%

Does macauba cake alter nutrient digestibility and microorganism population in the rumen of sheep?

Geraseev

Duarte

Vieira

et al. 2023

Trop Anim Health Prod

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This study aimed to determine the effects of including macauba cake (MC) in the diets of Santa Ines sheep on nutrients digestibility, and the population of microorganism in the rumen (total bacteria, anaerobic fungi, methanogenic organisms, Ruminococcus avefaciens, and Fibrobacter succinogenes). Twenty male sheep were distributed in a randomized block design with four MC treatment diets (0, 10, 20, and 30% of total dry matter). MC inclusion did not affect the dry matter, organic matter, or crude protein intake, but increased the ether extract, neutral detergent ber, and acid detergent ber intake, mainly because of changes in the concentrations of these components in diets with a higher level of MC. With MC inclusion, a linear decreasing effect was observed for the dry matter and organic matter digestibility, and a quadratic effect with a maximum point of 21.5% was observed for the acid detergent ber digestibility. MC inclusion reduced anaerobic fungal populations and increased methanogenic populations. The increase in methanogenic organisms can be associated with the higher ber content in diets containing MC. The inclusion of macauba cake in the diet of lambs reduced the dry matter digestibility, promoted an antifungal effect and increased the methanogenic population.

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Section: Introductionmentioning

confidence: 99%

Does macauba cake alter nutrient digestibility and microorganism population in the rumen of sheep?

Geraseev

Duarte

Vieira

et al. 2023

Trop Anim Health Prod

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“…ex Mart.) cake presents some intrinsic characteristics such as high contents of dry matter (from 87 to 89%) and ethereal extract (from 8 to 20 %) and high concentration of non-fibrous carbohydrates (Fonseca et al, 2012;Santos et al, 2015;Silva et al, 2015). These characteristics highlight its potential as an ingredient in ruminant diets or as a moisture sequestering additive in tropical grass silages.…”

Section: Introductionmentioning

confidence: 99%

Macauba palm cake as additive in elephant grass silage

Silveira

Braz

Rigueira

et al. 2020

Acta Sci. Anim. Sci.

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The aim of this study was to evaluate the addition of macauba palm cake (Acrocomia aculeata) on the chemical composition, fermentation and aerobic stability of elephant grass silages (Pennisetum purpureum). The experiment was performed in a completely randomized design with four replicates. The treatments were composed of six levels of macauba palm cake (0, 6, 12, 18, 24, 30%) as additive to elephant grass silage. Dry matter and ethereal extract content of the silage increased linearly with the inclusion of the additive. Addition levels of 15.54% would provide 35% of dry mass, and the limit of 7.00% of ethereal extract in the silage could be obtained with 10.47%. The neutral detergent fiber content reduced linearly from 68.97 to 52.59%, but lignin increased linearly from 6.56 to 7.70%. There was a reduction of 0.17% in the ammoniacal nitrogen content for each 1% of cake. The minimum value of dry matter losses (1.33%) was estimated to the inclusion level of 23.70%. The aerobic stability increased with inclusions between 18 and 24% of cake. The use of levels between 10 and 15% of macauba palm cake are sufficient to optimize dry matter and ethereal extract contents of the silages and to provide a high aerobic stability with minimum losses.

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Effects of dietary inclusion of macaúba seed cake meal on performance, caecotrophy traits and in vitro evaluations for growing rabbits

Ferreira

Inácio

et al. 2018

Archives of Animal Nutrition

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The objective was to evaluate the inclusion of macaúba seed cake (MSC) meal in diets for growing rabbits by assessing their growth and slaughtering performance, haematological traits, nutritional contribution of caecotrophs, in vitro digestibility, degradability and fermentation parameters. A total of 88 rabbits were distributed to four groups with 22 animals each and fed diets containing 0, 50, 100 and 150 g/kg of MSC, respectively. The in vitro assays were conducted employing cecum inoculum on the same dietary treatments. The inclusion of MSC yielded a quadratic effect on in vitro dry matter digestibility (p < 0.001). The maximum amount of produced gas was raised linearly with the inclusion of MSC (p = 0.016). MSC linearly reduced several variables as the nutritional contribution of caecotrophs in dry matter (p = 0.017) and crude protein (p = 0.014), live weight at 51 d (p = 0.024), body weight gain (p = 0.039), average daily feed intake (ADFI) (p = 0.001) and feed conversion ratio (FCR) (p = 0.007) in the first period evaluated (30-50 d); furthermore the ADFI and FCR the second (51-72 d) and whole period (30-72 d) (p < 0.001). MSC addition caused a quadratic effect on white blood cells count (p = 0.026) and a linear decrease of eosinophils (p = 0.045). In conclusion, the inclusion of up to 150 g/kg of MSC improves the in vitro digestibility and fermentation potential of the diets, reflecting on the ADFI and FCR of the animals, although adverse effects are observed on the weight of the commercial carcass and nutritive contribution of the caecotrophs.

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Efeito da inclusão da torta de macaúba na população de protozoários do rúmen de vacas leiteiras

Cited by 5 publications

References 21 publications

Does macauba cake alter nutrient digestibility and microorganism population in the rumen of sheep?

Does macauba cake alter nutrient digestibility and microorganism population in the rumen of sheep?

Macauba palm cake as additive in elephant grass silage

Effects of dietary inclusion of macaúba seed cake meal on performance, caecotrophy traits and in vitro evaluations for growing rabbits

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