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The effects of lemon verbena (Lippia citriodora) verbascoside on the productive performance, plasma oxidative status, and some blood metabolites in suckling lambs

100%

Casamassima D. , Palazzo M. , D'Allesandro A. G. , Colella G. E. , Vizzarri F. , Corino C.

nr 3

The effects of two doses of a verbascoside-based dietary supplement on performance, some blood parameters, and plasma oxidative status in Lacaune suckling lambs were investigated. Twenty-four lambs were divided into three groups of eight animals each and fed per os a dietary supplement with a plant extract from Lippia citriodora containing a phenylpropanoid glycoside, verbascoside: the low-verbascoside (LVB) group received 2.5 mg per animal per day of natural extract, the high-verbascoside (HVB) group received 5.0 mg per animal per day, the control group (CON) did not receive dietary supplementation. The body weight, average daily gain, milk consumption and milk conversion index were determined for the experimental and control animals and blood samples were taken from all lambs. Dietary supplementation with verbascoside in both the LVB and HVB groups resulted in improved average daily gain (P < 0.01), milk consumption (p < 0.05), and serum lipid profile; the groups showed a decrease in triglycerides (p < 0.05) and an increase in high density lipoprotein cholesterol levels (p < 0.05). Plasma oxidative status in lambs supplemented with verbascoside showed an improvement in homoeostatic stability that induced a significant decrease in reactive oxygen metabolites (P < 0.01) and thiobarbituric acid-reactive substances (p < 0.05) concentrations and a marked increase in serum concentrations of vitamin E (P < 0.01) and vitamin A (p < 0.05)

Organic selenium supplementation improves growth parameters, immune and antioxidant status of newly received beef cattle

84%

Sgoifo Rossi C. A. , Compiani R. , Baldi G. , Muraro M. , Marden J. P. , Rossi R. , Pastorelli G. , Corino C. , Dell’Orto V.

tom 26

nr 2

The effects of dietary supplementation with selenium enriched yeast on growth, immune and antioxidant status were assessed on 228 newly received beef cattle. During the adaptation phase (54 days), the animals were housed in 38 pens (19 pens per treatment) and supplemented with 0.32 mg · kg−1 DM of Se as sodium selenite (CTR) or selenium enriched yeast (SeY). At days 0, 19 and 54 the animals were weighed and blood samples were collected from one healthy animal per pen. During the experimental trial, bovine respiratory disease (BRD) occurrence was monitored. Blood antioxidant status, selenium serum concentration, bovine herpesvirus-1 (BHV-1) antibody titer and serum bactericidal activity were determined. Growth performance was improved (P < 0.05) and BRD occurrence was reduced (P = 0.06) in SeY group. SeY supplementation increased BHV-1 antibody titre after vaccination, highlighting a positive impact of SeY supplementation on immune system functioning. SeY supplementation improved (P < 0.01) selenium serum concentration and positively affected antioxidant status, expressed as Kit Radicaux Libres value, that tended to be higher (P = 0.07) in SeY group, due to Se higher bioavailability. The obtained results suggest that dietary supplementation with organic form of selenium improves growth performance, immune and antioxidant status in newly received beef cattle

Dietary supplementation with natural extracts mixture: effects on reproductive performances, blood biochemical and antioxidant parameters in rabbit does

84%

Vizzarri F. , Chiapparini S. , Corino C. , Casamassima D. , Palazzo M. , Parkanyi V. , Ondruska L. , Rossi R.

nr 2