Anatomic and tissue characteristics in goats fed for extended periods with residue of castor biodiesel production

Oliveira

Fernandes

et al. 2019

Semina: Ciênc. Agrár.

Self Cite

This trial was carried out with the objective to evaluate the effect of feeding dried carnauba wax palm fruit on the quality of goat meat. Initially, the animals were divided into two groups: a control group, fed with ground corn-based concentrate, and a treatment group, fed with dried carnauba wax palm fruit included in the concentrate. After 28 days of feeding, the animals were slaughtered, and different muscles (Longissimus lumborum and semimembranosus) were evaluated for physicochemical characteristics, fatty acid profile, and expression of some genes related to meat quality. The diet with carnauba wax palm fruit does not interfere in the chemical composition of the meat in terms of moisture content, protein, fat, pH, and meat color. On the other hand, palmitic (C16:0) and linoleic (C18:2) fatty acids presented differences between muscles in the group fed carnauba wax palm fruit. The treatment with carnauba wax palm fruit reduces the expression of genes related to lipogenesis and cholesterol metabolism, suggesting the production of a tender meat with lower cholesterol content. The inclusion of carnauba wax palm fruit in the diet of does maintained the physicochemical characteristics of the loin and leg, and it reduced the expression of the analyzed genes, suggesting improvement in meat quality.

Section: Resultssupporting

confidence: 86%

Physicochemical characteristics and gene expression of meat from does fed with dried carnauba wax palm fruit

Oliveira

Fernandes

et al. 2019

Semina: Ciênc. Agrár.

Self Cite

“…The castor bean meal used in this study was supplied by the Brazilian Agricultural Research Corporation, EMBRAPA/Agribusiness Tropical, located in Fortaleza, Ceará, Brazil, which is currently developing a Programme of Development of Castor in the State (Rodrigues 2007 ; Oliveira et al 2013 ).…”

Section: Methodsmentioning

confidence: 99%

Potential application of waste from castor bean (Ricinus communis L.) for production for xylanase of interest in the industry

et al. 2016

Xylanases activity (XY) from Aspergillus japonicus URM5620 produced by Solid-State Fermentation (SSF) of castor press cake (Ricinus communis) on different conditions of production and extraction by PEG/citrate aqueous two-phase system (ATPS) were investigated. XY production was influenced by substrate amount (5–10 g), initial moisture (15–35 %), pH (4.0–6.0) and temperature (25–35 °C), obtaining the maximum activity of 29,085 ± 1808 U g ds−1 using 5.0 g of substrate with initial moisture of 15 % at 25 °C and pH 6.0, after 120 h of fermentation. The influence of PEG molar mass (1000–8000 g mol−1), phase concentrations (PEG 20.0–24.0 % w/w and sodium citrate 15–20 % w/w) and pH (6.0–8.0) on partition coefficient, purification factor, yield and selectivity of XY were determinate. Enzyme partitioning into the PEG rich phase was favored by M PEG 8000 (g mol−1), C PEG 24 % (w/w), C C 20 % (w/w) and pH 8.0, resulting in partition coefficient of 50.78, activity yield of 268 %, 7.20-fold purification factor and selectivity of 293. A. japonicus URM5620 has a potential role in the development of a bioprocess for the XY production using low-cost media. In addition, the present study proved it is feasible to extract xylanase from SSF by adopting the one step ATPS consisting of PEG/citrate.

Metabolic stress and reproductive features in post-partum goats supplemented for a long period with detoxified castor meal as the source of dietary nitrogen

Oliveira

Arq. Bras. Med. Vet. Zootec.

et al. 2020

This study evaluated the effect of detoxified castor meal on the reproductive performance, metabolic stress, milk production, and kid development in peripartum goats. The diet of the animals were with (DCM, n= 20) or without (WDCM, n= 21) detoxified castor meal during the entire gestation and until weaning, 60 days post-birth. No differences were observed in the gestation period, litter size, rate of multiple births, and mortality between the two groups. The postpartum plasma concentrations of progesterone remained below 1ng/mL in all animals, thus, confirming the absence of active corpora lutea. The thickness of sternum adipose tissue and loin area, levels of urea and cholesterol, milk production, and daily weight gain in the kids were low in the DCM group when compared to those in the WDCM group (P< 0.05). To conclude, the use of detoxified castor meal in peripartum goats resulted in lower level of performance in the kids because of reductions in the amount of milk received from their mothers during lactation. In addition, the diet containing detoxified castor meals was not efficient in recovering from the loss of stored body reserves able to initiate the recovery of the cyclic activity of the goats.