• Title/Summary/Keyword: Feed additive

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Evaluation of mango saponin in broilers: effects on growth performance, carcass characteristics, meat quality and plasma biochemical indices

  • Zhang, Y.N.;Wang, J.;Qi, B.;Wu, S.G.;Chen, H.R.;Luo, H.Y.;Yin, D.J.;Lu, F.J.;Zhang, H.J.;Qi, G.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.30 no.8
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    • pp.1143-1149
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    • 2017
  • Objective: The objective of the present study was to determine whether mango saponin (MS) could be used as a feed additive in broiler chicks by evaluating growth performance, carcass characteristics, meat quality, and plasma biochemical indices. Methods: A total of 216 1-d-old Arbor Acres male broiler chicks were randomly assigned into three dietary treatments supplemented with 0 (control), 0.14% (MS 0.14%), or 0.28% (MS 0.28%) MS. Each treatment had six replicates (cages) with 12 chicks each. The feeding trial lasted for six weeks. Results: Compared with the control, dietary supplemented with 0.14% or 0.28% MS increased average daily weight gain of chicks in the grower (22 to 42 d) and the whole (1 to 42 d) phases, and the final body weight of chicks on d 42 was higher in MS supplemented groups (p<0.05). Lower $L_{45min}{^{\star}}$ (lightness) and $L_{24h}{^{\star}}$ values, lower $b_{24h}{^{\star}}$ (yellowness) value, and higher $a_{45min}{^{\star}}$ (redness) and $a_{24h}{^{\star}}$ values of the breast muscle were observed in chicks fed with 0.28% MS on d 42 (p<0.05). The total antioxidant capacity in plasma increased in MS 0.14% group on d 21 (p<0.001). Lower contents of plasma total cholesterol and triglyceride were observed in chicks fed with 0.28% MS on d 21 and d 42, whereas the group supplemented with 0.14% MS only decreased plasma triglyceride content on d 21 (p<0.05). The glucose content in plasma decreased in MS 0.28% group on d 42 (p<0.001). Conclusion: Overall, MS could be used as a feed additive in broiler chicks, and the supplemental level of 0.28% MS in diet could improve growth performance, meat quality, and plasma lipid metabolism in broiler chicks.

Patent Trend Analysis on Natural Feed Additive for Avian Influenza Prevention and Immune Enhancement (조류 인플루엔자 예방 및 면역 증진을 위한 천연 사료 첨가제 특허동향 분석)

  • Park, Chanjeong
    • The Journal of the Korea Contents Association
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    • v.18 no.3
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    • pp.62-69
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    • 2018
  • This study investigate the patent trend of natural feed additives for avian influenza prevention and immunity enhancement. The search scope is Korean and Chinese patents published before December 31, 2017. As a result, I found 53 Korean patents and 105 Chinese patents. Korea and China has increased the number of patent applications since late 2000. In particular, China filed the most patent applications in 2016. Both Korea and China, the oriental medicine materials were mainly used in patent claims. Korea has many patent applications that are submitted by universities, research institutes and bio companies, but China has a high proportion of individual patent applicants.

Beneficial roles of Song-Gang stone as a feed additive in aquaculture: a review

  • Yoo, Gwangyeol;Abediostad, Zeinab;Choi, Wonsuk;Bae, Jinho;Choi, Youn Hee;Lee, Seunghyung;Bai, Sungchul C.
    • Fisheries and Aquatic Sciences
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    • v.24 no.12
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    • pp.394-399
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    • 2021
  • Song-Gang® bio-stone (SGS) is a microporous crystalline hydrated aluminosilicate which has found various applications because of their very unique physiochemical characteristics such as ion exchange and absorptive-desorptive properties. Significant progress has been made in recent years on applications of these inorganic adsorbents in different industries including agriculture, aquaculture, water and wastewater treatment. This review article intends to summarize the published reports on the applications of SGS in aquaculture industry. SGS application as a feed additive to enhance fish growth and promote their health and nutritional parameters is the most important discussed areas. According to the technical data that are discussed in this review, SGS should be considered as a material with tremendous potential for application in the aquaculture industry. Considerable amounts of research works are under way to explore other opportunities for application of SGS to benefit aquaculture industry.

A Study on the Growth Effects of Ecklonia cava By-product (감태 가공부산물을 이용한 성장효과에 관한 연구)

  • Sim, In-suk
    • Microbiology and Biotechnology Letters
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    • v.47 no.4
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    • pp.509-514
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    • 2019
  • We investigated the beneficial effects of Ecklonia cava by-product (ECB), a residual product obtained after polyphenol extraction from Ecklonia cava, on normal rats. Male Sprague-Dawley rats were divided into the following three groups: Control group (NC), received basal diet; ECB 0.1 group, received basal diet supplemented with 0.1% ECB for 21 days; ECB 0.5 group, received basal diet supplemented with 0.5% ECB for 21 days. The productivity, serum immunoglobulin level, expression levels of muscle-related genes, and cecal microflora were measured in all the treatment groups to evaluate the potential use of ECB as a feed additive. The ECB 0.1 group exhibited enhanced expression of Myod, Myog, and Igf1 genes, which increased the body weight of rats. Additionally, treatment with ECB increased the cecal Lactobacillus spp. counts and the serum immunoglobulin G levels in rats. Thus, ECB can effectively increase body weight and can be a potential feed additive for improving growth.

A Study on Determination of Iodine in Serum, Fresh Milk, and Feed Additive by Inductively Coupled Plasma-Mass Spectrometry (유도결합 플라스마-질량분석법에 의한 혈청, 생우유 및 사료첨가제중 요오드의 분석에 관한 연구)

  • Lee, Won;Park, Kyung-Su;Kim, Sun-Tae;Kim, Young-Man
    • Analytical Science and Technology
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    • v.12 no.6
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    • pp.528-533
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    • 1999
  • The total iodine is determined in serum, fresh milk and feed additive by ICP-MS. The preparation involves only a 25-fold dilution with a diluent by direct nebulization in the plasma. The diluent composition is $NH_4OH$(0.5% v/v)+$CH_3OH$(5% v/v) and the abundance of iodine is measured at m/z=127. The calibration curve was linear over the ranges $0-100{\mu}g/L$ with $R^2=0.99$ for iodine. The detection limit of this method is $0.084{\mu}g/L$ for iodine. The relative error range of milk powder SRM in optimum condition is 2.30%-4.73%. The concentration ranges of iodine in the serum, fresh milk, feed additive were $12.4-40.2{\mu}g/L$, < 0.01-3.11 mg/L, < $10^{-7}-2.60g/kg$ respectively.

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The Improvement of Laying Productivity and Egg Quality according to Providing Germinated and Fermented Soybean for a Feed Additive

  • Shin, Jin-Ho;Park, Jung-Min;Kim, Jin-Man;Roh, Kwang-Soo;Jung, Woo-Suk
    • Food Science of Animal Resources
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    • v.32 no.4
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    • pp.404-408
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    • 2012
  • This study was performed to investigate the effects of laying productivity and egg quality according to providing germinated and fermented soybean (GFS) as feed additive. Among the strain, we selected Monascus purpureus KCCM 12002 so that inoculated in soybean and fermented for 48 h at $20^{\circ}C$. A total of two-hundred forty 70-wk-old Hy-Line Brown layers were divided into four groups (4 treatment${\times}$6 replication${\times}$10 birds each) and fed diets containing 0 (as control) (T1), 0.5% (T2), 1.0% (T3) or 2.0% GFS (T4) for 6 wk. The laying productivity, egg quality and blood property in the egg yolk were experimented. There were no significant differences in the laying productivity, relative liver and spleen weights, egg yolk color and eggshell strength among another groups. The eggshell color, eggshell thickness and haugh unit significantly increased in the GFS-supplemented group (p<0.05) compared to control. However, no significant differences were observed in the blood property after supplementation. The amount of lactic acid bacteria present during storage increased by providing of GFS (p<0.05) compare to control group. Our study results suggested that GFS can be used as a favorable feed additive and feedstuff for the productivity of high quality eggs and promoted relative industry.

Reduction of Nitrogen and Phosphorus from Livestock Waste A Major Priority for Intensive Animal Production - Review -

  • Yano, F.;Nakajima, T.;Matsuda, M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.12 no.4
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    • pp.651-656
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    • 1999
  • In current animal production in Japan, a large surplus of nitrogen and phosphorus is given to animals as their feed which are mostly imported from outside of our own country. Today, an excess of nitrogen and phosphorus from animal manure has been spread out of the area of animal production and the surroundings. These components have become the major reason for eutrophication of ground, surface and inland water. Nutritional studies for the reduction of nitrogen and phosphorus from animal waste has been done by many researchers. The reduction of excess protein in animal feed and the supplementation of deficient essential amino acids to feed have a possibility to increase the biological value of feed and to reduce nitrogen excretion, especially, via urine. The use of phytase activity to degrade phytate and to release utilizable inorganic phosphorus make it possible to cut an excess supply of feed additive inorganic phosphorus and to reduce phosphorus excretion from animal waste.

Effects of Cellulase Enzymes and Bacterial Feed Additives on the Nutritional Value of Sorghum Grain for Finishing Pigs

  • Kim, I.H.;Hancock, J.D.;Hines, R.H.;Kim, C.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.11 no.5
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    • pp.538-544
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    • 1998
  • One hundred and twenty-eight finishing pigs (51.3 kg average initial body weight) were used to determine the effects of adding cellulase enzymes and lactobacillus acidophilus to sorghum-based diets on growth performance, carcass merit, and nutrient digestibility in finishing pigs. Treatments were: 1) corn-soybean meal-based positive control; 2) sorghum-soybean meal-based negative control; 3) Diet 2 with celluloytic enzymes; and 4) Diet 2 with a bacterial feed additive (lactobacillus acidophilus). There was a trend for greater average daily gain (ADG) in pigs fed com versus the sorghum treatments for day 0 to 28 (p < .09), but there was no effect of treatment (p > .15) on overall ADG (i.e., day 0 to 63). Feed consumption was not affected by treatment during the experiment (p > .19). Pigs fed the corn-soybean meal-based diet had 3.5% greater overall gain/feed than pigs fed the other diets (p < .009). Dressing percentage was not affected by treatment (p > .22), but there was a trend for backfat thickness at the last rib to be greater for pigs fed com versus the sorghum treatments (p < .09). Pigs fed the sorghum treatments had 1 % greater fat free lean index (p < .10) compared to pigs fed the corn-soybean meal-based positive control. Pigs fed com had greater apparent digestibilities of DM, N, and GE than pigs fed the sorghum treatments (p < .03), and greater DE intake (p < .07) suggesting that the increased carcass fatness for pigs fed the corn-based control diet resulted from greater energy status of those pigs. In conclusion, pigs fed the corn-soybean meal-based control diet had no improved growth performance but tended to be fatter than pigs fed sorghum. Adding cellulolytic enzymes or a bacterial feed additive to diets for finishing pigs did not affect growth performance, carcass merit, or nutrient utilization.

Perspectives for rare earth elements as feed additive in livestock - A review

  • Tariq, Hujaz;Sharma, Amit;Sarkar, Srobana;Ojha, Lamella;Pal, Ravi Prakash;Mani, Veena
    • Asian-Australasian Journal of Animal Sciences
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    • v.33 no.3
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    • pp.373-381
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    • 2020
  • There is a need for newer feed additives due to legal prohibition on inclusion of growth promoting antibiotics in livestock diets in several countries due to antimicrobial resistance. In this context, rare earth elements (REE) have gained attention among animal nutritionists as potential growth promoters. Currently, several studies have reported better weight gain, milk production, egg laying capacity and feed conversion efficiency among different breeds of farm animals following supplementation with REE, with however largely inconsistent results. Furthermore, REE supplementation has also shown to improve ruminal fibrolytic and proteolytic activities as well as flavor of meat with negligible residues in edible tissue, however the mechanism behind this action is still unclear. According to existing research, due to their poor absorption and similarity with calcium REE might exert their action locally on gut microbial populations within the gastrointestinal tract (GIT). Moreover, REE have also shown anti-inflammatory, anti-oxidative as well as immune stimulating effects. The present review aims to broaden the knowledge about use of REE as feed additives for livestock and sum up efficacy of REE supplementation on performance and health of animals by comparing the findings. Till date, researches with REE have shown properties that make them a promising, new and safe alternative feed additive but further exploration is recommended to optimize effects and clarify discrepancy of various results before practical proposals can be drafted.

Effect of Dietary Inclusion of Yacon, Ginger and Blueberry on Growth, Feed Utilization, Serum Chemistry and Challenge Test against Streptococcus iniae of Juvenile Rockfish Sebastes schlegeli (배합사료내 야콘, 생강 및 블루베리 첨가에 따른 조피볼락 (Sebastes schlegeli) 치어의 성장, 혈액성상 및 Streptococcus iniae 감염에 미치는 영향)

  • Lee, Ki Wook;Kim, Hee Sung;Cho, Sung Hwoan;Park, Chan-Il;Ha, Min-Su
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.49 no.6
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    • pp.823-829
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    • 2016
  • Yacon (YC), ginger (GG) and blueberry (BB) were added to the diet of juvenile rockfish Sebastes schlegeli to investigate the effects of these substances on growth, feed utilization and resistance to Streptococcus iniae compared to feed additive ethoxyquin. A total of 480 fish were distributed in 12 tanks and four experimental diets [control (Con), with 0.01% ethoxyquin, and 1% YC, GG and BB diets] were provided in triplicate. After an 8-week feeding trial, 20 fish from each tank were infected with Streptococcus iniae. Fish fed the BB diet had higher weight gain than fish fed the GG and Con diets. Feed efficiency of fish fed the GG and YC diets was higher than that of fish fed the BB and Con diets. The protein efficiency ratio of fish fed the GG diet was higher than that of fish fed any other diet. The cumulative mortality 54 h after infection of fish fed the Con diet was higher than that of fish fed any other diet. These results indicate that YC, GG, and BB are effective dietary additive, not only improving growth performance and feed utilization but also lowering the mortality of juvenile rockfish exposed to S. iniae.