Current use of phytogenic feed additives in animal nutrition: a review

Karásková, K.; Suchý, Pavel; Straková, Eva

doi:10.17221/8594-cjas

Cited by 90 publications

(90 citation statements)

References 65 publications

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“…Both of these natural sources of carotenoids are prospective feed supplements that are suitable for the doi: 10.17221/17/2017-CJAS production of eggs containing high concentrations of lutein and zeaxanthin, so-called functional foods (Englmaierova et al 2013;Kotrbacek et al 2013;Skrivan et al 2015Skrivan et al , 2016. The positive effects of carotenoids on human and animal health are evident from many studies (Cermak et al 2015;Karaskova et al 2015;Meza-Herrera et al 2017).…”

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confidence: 99%

Effect of the source and level of carotenoids in diets on their retention in eggs

Skřivanová¹,

Englmaierová²,

Bendová³

et al. 2017

CZECH J ANIM SCI

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Skřivanová V., Englmaierová M., Bendová M., Skřivan M. (2017): Effect of the source and level of carotenoids in diets on their retention in eggs. Czech J. Anim. Sci., 62, 323-330.The lutein and zeaxanthin deposition in egg yolks of hens was evaluated. The effects of various levels of extracts from Mexican marigold flowers in hen diets were compared in Experiments 1 (from 0 to 350 mg/kg) and 2 (from 0 to 950 mg/kg). In Experiment 3, the sources of carotenoids such as lutein (250 mg/kg) and Chlorella (12.5 g/kg) were examined. All three experiments were conducted using brown egg layers housed in enriched cages. The lutein concentrations in yolks were increased (P < 0.05) from 0.141 to 0.232 mg/60 g of egg (Experiment 1) and from 0.096 to 0.283 mg/60 g of egg (Experiment 2). A similar trend was observed for zeaxanthin. In Experiments 1 and 2, the zeaxanthin content increased from 0.096 to 0.150 mg/60 g of egg and from 0.046 to 0.200 mg/60 g of egg, respectively. However, the retention of lutein and zeaxanthin decreased in a dose-dependent manner from 55.8 to 33.0% and 49.1 to 29.3%, respectively, in Experiment 1 and from 81.2 to 23.3% and 57.0 to 21.6%, respectively, in Experiment 2. In Experiment 3, both the treated groups had greater lutein and zeaxanthin contents in the yolks. The ratio of lutein in the yolks from hens fed lutein to those from hens fed algae was 2.7 : 1 (1.044 and 0.382 mg/60 g of egg). Overall, 14.0 and 16.4% of lutein and 13.7 and 15.3% of zeaxanthin was retained in the eggs of hens fed lutein and algae, respectively. The concentrations of carotenoids in hen egg yolks depend on dietary intake, and the retention of carotenoids decreases with increasing dose. A higher carotenoid retention in the yolks was found when the hen diets were supplemented with the Mexican marigold extract than when Chlorella or pure lutein were used as supplements.

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confidence: 99%

Effect of the source and level of carotenoids in diets on their retention in eggs

Skřivanová¹,

Englmaierová²,

Bendová³

et al. 2017

CZECH J ANIM SCI

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“…Phytogenic feed additives may be included among supplements that are aimed to positively affect feed quality, health of animals as well as animal products by means of their specifically efficacious substances (Karásková et al 2015). Bee pollen is an agglomerate of flower pollen collected by the bees and mixed with nectar and secretions from the hypopharyngeal glands (Carpes et al 2009).…”

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The effect of dietary bee pollen intake on growth performance and biochemical indicators of rats

et al. 2016

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The aim of this study was to analyse the effects of different daily intakes of rapeseed bee pollen on the growth and biochemical blood serum indicators in male and female rats. A total of 40 clinically healthy male and female Wistar rats were randomly divided into four groups. In the control group (C) rats were fed a standard complete diet; in the experimental groups standard diets were supplemented with different doses of bee pollen. Treatment group T1 was given standard diet with the addition of bee pollen at a 0.3% concentration; in group T2 the addition was 0.5%; and in group T3 it was 0.75%. The experimental period lasted for 90 days. A significant effect (P < 0.05) of bee pollen on the body weight gain and feed conversion ratio of female rats was found. Significantly (P < 0.05) higher cholesterol concentration in blood serum of male rats was found in the groups with bee pollen addition (groups T2 and T3) compared to the control group. Lower triglyceride serum content in all female experimental groups (T1 and T3) was observed in comparison to the control. Higher serum cholesterol content in the experimental female rats was detected; significant differences were analysed in groups T1 and T3 compared to the control female group. Rapeseed bee pollen at concentrations of 0.5 and 0.75% positively affected the body weight gain of female rats, however, with higher feed consumption (P < 0.05). Rapeseed bee pollen reduced the triglycerides serum content in female rats and increased the cholesterol serum content in male and female rats (P < 0.05). Additives, efficiency, blood serum, model animals

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“…4 EOM 2 was included at 0.013% of the diet at the expense of corn in all dietary phases. 5 A combination of EOM 1 at 0.020% and EOM 2 at 0.013% of the diet were included at the expense of corn in all dietary phases. 1 Multiple diet samples were collected from each diet throughout the study, homogenized, and then subsampled for analysis (Cumberland Laboratories, Inc. Kearney, NE).…”

Section: Resultsmentioning

confidence: 99%

“…4,5 Research with phytogenics in swine diets has yielded inconsistent results with more research needed to determine the correct blend or timing of use, as well as to identify the greatest opportunities to yield economic benefits. 3,6 Previous research with the use of phytogenics during the growing-finishing phase suggested that the combination of two essential oil mixtures (EOM), EOM 1 (containing caraway, garlic, thyme, and cinnamon) and EOM 2 (containing oregano, citrus, and anise), would improve pigs ADFI, HCW, and carcass ADG compared to a control regimen without the use of any additives.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Dietary Phytogenics on Growth Performance and Carcass Characteristics of Pigs During the Growing-Finishing Phase

Soto¹,

Tokach²,

Dritz³

et al. 2017

Kansas Agricultural Experiment Station Research Reports

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A total of 317 pigs (DNA 600 × 241, initially 108.6 lb) were used in a 87-d trial to determine the effects of two essential oil mixtures tested individually and in combination on growth performance and carcass characteristics of growing-finishing pigs from 108 to 285 lb. Pens of 9 or 10 mixed-gender pigs were allotted by BW and randomly assigned to 1 of 4 dietary treatments with 8 replications per treatment. Pigs were fed a nutritional program with 4 dietary phases with the same treatments fed in all 4 phases. Experimental treatments included a control diet with no feed additives or the control with 0.02% essential oil mixture 1 (EOM 1) containing caraway, garlic, thyme, and cinnamon; 0.013% essential oil mixture 2 (EOM 2) containing oregano, citrus, and anise; and the combination of 0.02% EOM 1 and 0.013% EOM 2 (EOM 1+2). At d 87, pigs were transported to a packing plant for processing and carcass data collection. There was no evidence for treatment differences for overall ADG, ADFI, or F/G. Similarly, there was no evidence for treatment differences in HCW, carcass yield, backfat, loin depth or percentage lean. In summary, the inclusion of these phytogenic feed additives did not influence growth or carcass performance.

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Current use of phytogenic feed additives in animal nutrition: a review

Cited by 90 publications

References 65 publications

Effect of the source and level of carotenoids in diets on their retention in eggs

Effect of the source and level of carotenoids in diets on their retention in eggs

The effect of dietary bee pollen intake on growth performance and biochemical indicators of rats

Evaluation of Dietary Phytogenics on Growth Performance and Carcass Characteristics of Pigs During the Growing-Finishing Phase

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