Feed additives in broiler diets to produce healthy chickens without in-feed antimicrobial compounds

Yoo, J.S.; Park, Gun Hee; Sung, Jong Seung; Song, H. J.; Shin, So Young; Jung, Wonkyung; Heo, Jung Min

doi:10.7744/cnujas.2014.41.4.441

Cited by 3 publications

(3 citation statements)

References 82 publications

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“…It can be the best feedstuff for additional omega-3 polyunsaturated fatty acids [ 17 ]. Omega-3-fatty acids (ω-3) are a series of fatty acids, including eicosapentaenoic acid (EPA), α -linolenic acid, and docosahexaenoic acid (DHA) [ 18 ]. Shin et al [ 19 ] have found that supplementation ω-3 and ω-9 fatty acid blends does not affect the accumulation of liver fat or the ratio of live weight to broiler liver weight.…”

Section: Discussionmentioning

confidence: 99%

Effects of replacing soybean meal with perilla seed meal on growth performance, and meat quality of broilers

Song

Wang

et al. 2020

J Anim Sci Technol

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The purpose of this study was to evaluate effects of replacing soybean meal with perilla seed meal (PSM) on growth performance, proximate composition of meat, meat quality, and fatty acids composition of meat in broilers. A total of 60 one-day-old chicks of ROSS 308 (initial body weight of 44.8 ± 0.4 g) were randomly allotted to four treatment groups (15 replicate cages with 1 broilers per cage) in a period of 5 weeks. Dietary treatments included control (CON) basal diet (corn-soybean meal-based diets) and test diets in which PSM was included at 0.5% (T1), 1% (T2), or 2% (T3) to gradually replace soybean meal. At the end of experiment, all broilers were slaughtered for collecting breast and thigh meat. At 5 weeks, T2 and T3 treatment groups had higher ( p < 0.05) body weights than CON and T1 treatment groups. Weight gain was increased ( p < 0.05) in T2 and T3 treatment groups. Feed intake was decreased ( p < 0.05) in T3 treatment group. Broilers in T2 treatment group had lower ( p < 0.05) feed conversion ratio than those in other treatment groups. In proximate composition of breast meat, there was no significant ( p > 0.05) difference in moisture and ash. Fat composition of breast meat was significantly ( p < 0.05) increased in T2 and T3 treatment groups. Regarding meat quality, broilers fed T3 diet had higher ( p < 0.05) water holding capacity than those fed other diets. Regarding fatty acids composition of thigh meat, broilers fed T3 diet had higher ( p < 0.05) linolenic acid than those fed other diets. In conclusion, soybean meal replaced by 2% perilla seed meal in broiler diet can improve growth performance, meat quality, and fatty acids composition of thigh meat in broilers. Perilla seed meal can be a lot of potential alternatives feedstuff for soybean meal in this study.

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Section: Discussionmentioning

confidence: 99%

Effects of replacing soybean meal with perilla seed meal on growth performance, and meat quality of broilers

Song

Wang

et al. 2020

J Anim Sci Technol

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“…Nonetheless, antibiotic offtake for treatment purposes is expected to increase due to livestock disease outbreaks caused by the prohibition of veterinary antibiotics in feed. Therefore, novel natural antibiotics are needed to overcome antibiotic-resistant bacteria [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Activity of an Extract of Hermetia illucens Larvae Immunized with Lactobacillus casei against Salmonella Species

Lee

Yun

Goo

2020

Insects

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The expressions of antimicrobial peptides (AMPs) in the larvae of the black soldier fly, Hermetia illucens, were significantly increased by pathogen or stimulant induced innate immunity activation. We immunized H. illucens fifth instar larvae with five different Lactobacillus species, that is, Lactobacillus acidophilus, L. brevis, L. casei, L. fermentum, or L. delbrueckii, to induce the mass production of AMPs and selected optimal immune inducers. Antimicrobial activities in hemolymph and H. illucens larvae (HIL) extract were evaluated against three salmonella species (Salmonella pullorum, Salmonella typhimurium, and Salmonella enteritidis). Highest antimicrobial activity was shown by the hemolymph of HIL immunized by L. casei and its activity was closely linked with the inductions of cecropin 1 (HiCec1) and defensin 1 (HiDef1) gene expressions. Furthermore, antimicrobial activity in hemolymph was stable to heat and pH and the growth of three Salmonella species were dramatically suppressed by HIL hemolymph and extract after immunization with L. casei. The minimal inhibitory concentration (MICs) of L. casei-immunized HIL extract against Staphylococcus aureus, Escherichia coli, and Salmonella species ranged from 100~200 µg/100 µL and no cytotoxicity to CaCo-2 and L929 cells were observed in the concentration range 100~40,000 µg/100 µL. Taken together, the present investigation demonstrates that L. casei-immunized HIL extract is a powerful natural antibiotic and preservative that can prevent contamination by Salmonella species.

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“…Furthermore, as a result, chemical preservatives are being increasingly used as feed additives to prevent bacterial, fungal, and viral contamination. Hence, novel natural antibiotics are now being considered as a potential means of overcoming the problems associated with the overuse and abuse of antibiotics and chemical preservatives [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Antimicrobial Activity of an Extract of Lactobacillus casei-Infected Hermetia illucens Larvae Produced Using an Automatic Injection System

Lee

Yun

Goo

2020

Animals

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In the present study, we developed an automatic mass-injection system (AMIS) to produce an extract of infected H. illucens larvae (iHIL-E) and then evaluated antimicrobial peptide (AMP) expressions and assessed the antimicrobial activity of iHIL-E against various pathogens and Lactobacillus species. AMP gene expressions were assessed by real-time quantitative polymerase chain reaction (PCR) and the antimicrobial activities of iHIL-E were estimated using a radial diffusion assay and by determining minimal inhibitory concentrations. Results showed that the antimicrobial activity of HIL extract was effectively enhanced by L. casei infection and that the gene expressions of cecropin 3 and defensin 3 (antimicrobial peptides) were up-regulated. iHIL-E also prevented the growths of Enterococcus faecalis, Streptococcus mutans, and Candida vaginitis (MICs 200, 500, and 1000 µg/100 µL, respectively) and demonstrated high protease resistance. Moreover, the growths of methicillin-resistant Staphylococcus aureus, antibiotic-resistant Pseudomonas aeruginosa and AMP-resistant bacteria, Serratia marcescens, and Pseudomons tolaasii were significantly suppressed by iHIL-E. In addition, although iHIL completely cleared Salmonella species at concentrations of >200 µg/100 µL, Lactobacillus species were unaffected by iHIL at concentrations of <1000 µg/100 µL. The present investigation shows that the devised automatic mass injection system is effective for the mass production of the extract of infected HIL and that this extract is a novel, natural, protease-resistant, antibiotic candidate with broad-spectrum antibiotic activity.

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Feed additives in broiler diets to produce healthy chickens without in-feed antimicrobial compounds

Cited by 3 publications

References 82 publications

Effects of replacing soybean meal with perilla seed meal on growth performance, and meat quality of broilers

Effects of replacing soybean meal with perilla seed meal on growth performance, and meat quality of broilers

Antimicrobial Activity of an Extract of Hermetia illucens Larvae Immunized with Lactobacillus casei against Salmonella Species

Evaluation of the Antimicrobial Activity of an Extract of Lactobacillus casei-Infected Hermetia illucens Larvae Produced Using an Automatic Injection System

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