Effect of essential oils on performance, liver abscesses, carcass characteristics and meat quality in feedlot steers

Pukrop, J. R.; Campbell, Brian T.; Schoonmaker, J. P.

doi:10.1016/j.anifeedsci.2019.114296

Cited by 15 publications

(9 citation statements)

References 32 publications

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“…Consistent with this study, Wistuba et al [ 37 ] reported that there was no effect on cooking loss in Angus crossbred steers fed 3% fish oil. Pukrop et al [ 38 ] also reported no difference in cooking loss in Angus-Simmental crossbred steers fed 1 g/steer essential oils. The tenderness of meat is considered to be related to the shear force.…”

Section: Discussionmentioning

confidence: 99%

Effect of a Rumen-Protected Microencapsulated Supplement from Linseed Oil on the Growth Performance, Meat Quality, and Fatty Acid Composition in Korean Native Steers

Sun

Lee

et al. 2021

Animals

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We evaluated the effects of a rumen-protected microencapsulated supplement from linseed oil (MO) on ruminal fluid, growth performance, meat quality, and fatty acid composition in Korean native steers. In an in vitro experiment, ruminal fluid was taken from two fistulated Holstein dairy cows. Different levels of MO (0%, 1%, 2%, 3%, and 4%) were added to the diet. In an in vivo experiment, eight steers (average body weight = 597.1 ± 50.26 kg; average age = 23.8 ± 0.12 months) were assigned to two dietary groups, no MO (control) and MO (3% MO supplementation on a DM basis), for 186 days. The in vitro study revealed that 3% MO is an optimal dose, as there were decreases in the neutral detergent fiber and acid detergent fiber digestibility at 48 h (p < 0.05). The in vivo study showed increases in the feed efficiency and average daily gain in the 3% MO group compared to the control group on days 1 to 90 (p < 0.05). Regarding meat quality, the shear force produced by the longissimus thoracis muscle in steers from the 3% MO group was lower than that produced by the control group (p < 0.05). Interestingly, in terms of the fatty acid profile, higher concentrations of C22:6n3 were demonstrated in the subcutaneous fat and higher concentrations of C18:3n3, C20:3n3, and C20:5n3 were found in the intramuscular fat from steers fed with 3% MO (p < 0.05). Our results indicate that supplementation with 3% MO supplements improves the growth performance and meat quality modulated by the omega-3 fatty acid content of meat in Korean native steers.

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Section: Discussionmentioning

confidence: 99%

Effect of a Rumen-Protected Microencapsulated Supplement from Linseed Oil on the Growth Performance, Meat Quality, and Fatty Acid Composition in Korean Native Steers

Sun

Lee

et al. 2021

Animals

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“…They can manipulate rumen fermentation characteristics 5,6 and subsequently improve growth rate 7,8 . However, other findings showed no meaningful effect of this feed additive on productive performance 9,10 , while another study showed a negative impact 11 . The inconsistent results among studies requires an appropriate tool to quantify the overall effect.…”

Section: Introductionmentioning

confidence: 93%

The use of essential oils as a growth promoter for small ruminants: a systematic review and meta-analysis

2020

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Background: Due to their antimicrobial properties and safety, essential oils are currently proposed as a sustainable option for antibiotic alternatives in the livestock sector. This current systematic review and meta-analysis investigated the effects of dietary essential oil supplements on growth response of small ruminants. Methods: A total of 12 studies (338 small ruminants) were included in this meta-analysis. The overall effect size was quantified using Hedges’ g with 95% confidence interval (CI) using a fixed-effect model. Publication bias was inspected using Begg’s and Egger’s tests, followed by trim and fill method to detect the number of potential missing studies. Results: Insignificant heterogeneity among studies was detected both on dry matter intake (DMI; P of Q = 0.810; I-square = 0.00%), average daily gain (ADG; P of Q = 0.286; I-square = 17.61%), and feed conversion ratio (FCR; P of Q = 0.650; I-square = 0.00%). The overall effect size showed that essential oils supplementation had no significant impact on DMI (Hedges’ g = -0.12; 95% CI = -0.50 to 0.26; P = 0.429) and FCR (Hedges’ g = -0.17; 95% CI = -0.55 to 0.22; P = 0.284), but had a significant positive impact on ADG (Hedges’ g = 0.44; 95% CI = 0.12 to 0.76; P = 0.002). The result of publication bias analysis showed that DMI, ADG, and FCR did not present any significant biases (P > 0.10), and no potential missing studies detected. Conclusions: Dietary essential oil could improve ADG of small ruminants, without any alteration on DMI and FCR. Further research in this topic is still required to provide stronger evidence of the potency of essential oil as a growth promoter for small ruminants.

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Section: Introductionmentioning

confidence: 93%

“…Of these, 12 studies were eligible for the current meta-analysis. The essential oil sources included oregano 11,[22][23][24] , thyme 25,26 , chavil 27 , juniper 7,28 , and mixed product 9,29 . Unfortunately, one study did not define the source of essential oil 8 .…”

Section: Publication Bias Analysismentioning

confidence: 99%

The use of essential oils as a growth promoter for small ruminants: a systematic review and meta-analysis

2020

View full text Add to dashboard Cite

Background: Due to their antimicrobial properties and safety, essential oils are currently proposed as a sustainable option for antibiotic alternatives in the livestock sector. This current systematic review and meta-analysis investigated the effects of dietary essential oil supplements on dry matter intake (DMI), average daily gain (ADG), and feed conversion ratio (FCR) of small ruminants. Methods: A total of 12 studies (338 small ruminants) were included in this meta-analysis. The overall effect size was quantified using Hedges’ g with 95% confidence interval (CI) using a fixed-effect model. Publication bias was inspected using Begg’s and Egger’s tests, followed by trim and fill method to detect the number of potential missing studies. Results: Insignificant heterogeneity among studies was detected both on DMI (P of Q = 0.810; I-square = 0.00%), ADG (P of Q = 0.286; I-square = 17.61%), and FCR (P of Q = 0.650; I-square = 0.00%). The overall effect size showed that essential oils supplementation had no significant impact on DMI (Hedges’ g = -0.12; 95% CI = -0.50 to 0.26; P = 0.429) and FCR (Hedges’ g = -0.17; 95% CI = -0.55 to 0.22; P = 0.284), but had a significant positive impact on ADG (Hedges’ g = 0.44; 95% CI = 0.12 to 0.76; P = 0.002). The result of publication bias analysis showed that DMI, ADG, and FCR did not present any significant biases ( P > 0.10), and no potential missing studies detected. Conclusions: Dietary essential oil could improve ADG of small ruminants, without any alteration on DMI and FCR. Further research in this topic is still required to provide stronger evidence of the potency of essential oil as a growth promoter for small ruminants.

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Effect of essential oils on performance, liver abscesses, carcass characteristics and meat quality in feedlot steers

Cited by 15 publications

References 32 publications

Effect of a Rumen-Protected Microencapsulated Supplement from Linseed Oil on the Growth Performance, Meat Quality, and Fatty Acid Composition in Korean Native Steers

Effect of a Rumen-Protected Microencapsulated Supplement from Linseed Oil on the Growth Performance, Meat Quality, and Fatty Acid Composition in Korean Native Steers

The use of essential oils as a growth promoter for small ruminants: a systematic review and meta-analysis

The use of essential oils as a growth promoter for small ruminants: a systematic review and meta-analysis

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