Sensitivity of sheep intestinal lactic acid bacteria to secondary compounds extracted from Acacia saligna leaves

Salem, Abdelfattah Z.M.; Robinson, P.H.; López, Secundino; Gohar, Yousry M.; Rojo, R.; Tinoco, J. L.

doi:10.1016/j.anifeedsci.2010.08.003

Cited by 20 publications

(18 citation statements)

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“…Plant extracts rich in secondary compounds have been shown to have positive effects on daily gain, voluntary feed intake, milk production and ruminal fermentation parameters (Salem et al, 2011b), besides having a protective effect on the protein in the rumen to promote duodenal absorption, minimizes the excretion of nitrogen, modify the acetate to propionate ratio in rumen fluid and decrease parasitic load (Athanasiadou and Kyriazakis, 2004;Salem et al, 2010;Jiménez et al, 2011). Although, the use of plant extract could be limit by their secondary compound concentrations, consumption of large amounts of tannins or saponins (Athanasiadou and Kyriazakis, 2004) may have a direct haemolytic effect and may even cause death.…”

Section: Introductionmentioning

confidence: 99%

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Effect of exogenous enzymes and <i>Salix babylonica</i> extract or their combination on haematological parameters in growing lambs

Rivero¹,

Salem²,

Gado³

et al. 2012

J. Anim. Feed Sci.

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The aim of this study was to compare the use of exogenous enzyme preparations (EZ) and/or Salix babylonica extract (SB) or their combination as feed additives on some haematological parameters in growing lambs. Twenty Suffolk lambs of 6 to 8-months-old with 24±0.3 kg body weight were used in the study. Lambs were divided into 4 groups of 5 animals each in a completely randomized design and the treatments were: 1.control: fed a basal diet of concentrate (30%) and maize silage (70%); 2. EZ: fed the basal diet plus 10 g of enzyme; 3. SB: fed the basal diet plus 30 ml of S. babylonica extract, and 4. EZSB: fed the basal diet plus 10 g enzyme and 30 ml of S. babylonica extract. Lambs were housed in individual cages and the experiment was conducted for 60 days. The SB was given orally while the EZ was mixed with a small amount of the concentrate and maize silage and was offered ad libitum. Blood samples were collected from each animal on days 0, 15, 30, 45 and 60 of Animal and Feed Sciences, 21, 2012, 577-586 ENZYMES -HAEMATOLOGICAL PARAMETERS IN LAMBSexperiment and analysed for haematological parameters. The treatments of EZ, SB or EZSB did not affect any of the measured blood parameters. Day of sampling modified concentrations of red blood cells (P=0.001; linear effect), haematocrit (P=0.01; quadratic effect), haemoglobin (P=0.01; linear effect), mean corpuscular volume (P=0.01; linear effect), monocytes (P=0.004; quadratic effect) and plasma protein (P=0.0002; linear effect). It could be concluded that Salix babylonica extract, exogenous enzymes and their combination as feed additives had not a negative effects on the blood parameters measured and therefore on the health of the lambs.

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Section: Introductionmentioning

confidence: 99%

“…Use of feed additives such as pre-and probiotics, ionophores, enzymes, and fodder shrubs and trees extracts have been used recently mainly in ruminant nutrition (Salem et al, 2006(Salem et al, , 2010Chung et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Effect of exogenous enzymes and <i>Salix babylonica</i> extract or their combination on haematological parameters in growing lambs

Rivero¹,

Salem²,

Gado³

et al. 2012

J. Anim. Feed Sci.

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“…La subespecie coli es un patógeno asociado a la presencia de diarreas en pequeños rumiantes de menos de 2 semanas de edad, los cuales presentan fiebre y diarrea ligada a daños severos en el epitelio intestinal alterando el trasporte de electrolitos y agua, provocando una rápida deshidratación a causa de la hipersecreción de líquidos, el porcentaje de morbilidad se encuentra entre el 20 y el 25% y la mortalidad suele ser mayor al 50%. Por otra parte E. coli también se ha reportado como agente causal de mastitis clínica en bovinos, ovinos y cabras productoras de leche, provocando pérdidas cuantiosas debido a que disminuye la producción láctea, provoca anorexia, fiebre, e incluso la pérdida del cuarto o medio afectado en casos extremos (Pugh, 2002 Las saponinas poseen una actividad antibacteriana y pueden modificar la fermentación ruminal suprimiendo protozoarios e inhibiendo selectivamente bacterias ruminales e intestinales (Lactobacillus plantarum y Enterococcus faecium en borregos) (Salem et al, 2010).…”

Section: Uso De Metabolitos Secundarios Como Antibacterianosunclassified

Actividad antibacteriana y sobre nematodos gastrointestinales de metabolitos secundarios vegetales: enfoque en Medicina Veterinaria

et al. 2018

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“…For this reason, there is substantial interest in evaluating the potential of using natural antimicrobials, such as plant extracts generally recognized as safe for human consumption (Busquet et al, 2006;Fandiño et al, 2008), to modify rumen microbial fermentation. Extract of Salix babylonica (SB) have been evaluated for their anti-microbial effects and for their potential to modulate ruminal fermentation and improve nutrient utilization in ruminants (Mejía-Hernández et al, 2013;Salem, 2012;Salem et al, 2010Salem et al, , 2011.The antimicrobial activity of SB extracts has been attributed to a number of plant secondary metabolites (PSM) such as alkaloids, saponins and phenolics (Jiménez-Peralta et al, 2011). Rumen microorganisms have the ability to degrade low concentrations of PSM without negative effects on rumen fermentation.…”

Section: Introductionmentioning

confidence: 98%

Influence of Oral Administration ofSalix BabylonicaExtract on Milk Production and Composition in Dairy Cows

Salem

Kholif

Elghandour

et al. 2014

Italian Journal of Animal Science

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A 3×3 Latin Square design was used to evaluate effects of 0, 150 and 300 mL of Salix babylonica (SB) extract mixed into the diet on daily milk production and composition in cows. Three Brown Swiss dairy cows (420±30.3 kg body weight), at late lactation (220±25.1 d in milk), were fed a diet with a restricted amount of concentrate and oat hay ad libitum twice daily in equal amounts. The SB extract was mixed daily with a small amount of concentrate and fed to the cows. In vitro gas production of the diet fed to the cows was recorded at 2, 4, 6, 8, 10, 12, 24, 48, and 72 h of incubation with 0, 0.6, 1.2 and 1.8 mL SB/g DM. Intake of oat hay was increased (P<0.05) by 11.5% with the SB addition at 150 mL/d. Milk production was also increased with extract addition at 150 or 300 mL/d by about 13.3 and 8.9% respectively, compared with control. Milk fat was lower (P<0.05) with SB addition, while milk protein and lactose were not affected by the extract addition. Milk efficiency was improved (P<0.05) with extract addition versus control. In vitro gas production of the diet increased (P<0.05) dramatically with increasing levels of extract addition with a short lag time and high rate of gas production per hour vs control. Addition of SB extract at 150 mL/d improved milk production by 13.3%, while it decreased its fat content and improved milk efficiency.

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Sensitivity of sheep intestinal lactic acid bacteria to secondary compounds extracted from Acacia saligna leaves

Cited by 20 publications

References 48 publications

Effect of exogenous enzymes and <i>Salix babylonica</i> extract or their combination on haematological parameters in growing lambs

Effect of exogenous enzymes and <i>Salix babylonica</i> extract or their combination on haematological parameters in growing lambs

Actividad antibacteriana y sobre nematodos gastrointestinales de metabolitos secundarios vegetales: enfoque en Medicina Veterinaria

Influence of Oral Administration ofSalix BabylonicaExtract on Milk Production and Composition in Dairy Cows

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