Huang, Chengfei;Zhang, Shuai;Stein, Hans Henrik;Zhao, Jinbiao;Li, Defa;Lai, Changhua
Asian-Australasian Journal of Animal Sciences
/
v.31
no.3
/
pp.395-402
/
2018
Objective: An experiment was conducted to evaluate effects of inclusion level of palm kernel meal (PKM) and adaptation duration on the digestible energy (DE) and apparent total tract digestibility (ATTD) of chemical constituents in diets fed to growing-finishing pigs. Methods: Thirty crossbred barrows ($Duroc{\times}Landrace{\times}Large\;White$) with an average initial body weight of $85.0{\pm}2.1kg$ were fed 5 diets in a completely randomized design. The diets included a corn-soybean meal basal diet and 4 additional diets in which corn and soybean meal were partly replaced by 10%, 20%, 30%, or 40% PKM. After 7 d of adaptation to the experimental diets, feces were collected from d 8 to 12, d 15 to 19, d 22 to 26, and d 29 to 33, respectively. Results: The DE and ATTD of gross energy (GE), dry matter (DM), ash, organic matter (OM), neutral detergent fiber (NDF), acid detergent fiber (ADF), and crude protein (CP) in diets decreased linearly as the dietary PKM increased within each adaptation duration (p<0.01). Diet containing 19.5% PKM had less DE value and ATTD of all detected items compared with other diets when fed to pigs for 14 days (p<0.05). The ATTD of CP in PKM calculated by 19.5% and 39.0% linearly increased as adaptation duration prolonged from 7 to 28 days (p<0 .01). Conclusion: Inclusion level of PKM and adaptation duration had an interactive effect on DE and the ATTD of GE, DM, OM, and CP (p<0.01 or 0.05) but ash, NDF, and ADF in diet (p>0.05). Considering a stable determination, 21 days of adaptation to a diet containing 19.5% PKM is needed in pigs and a longer adaptation time is recommended as dietary PKM increases.
Sangdon Ryu;Jeong Jae Lee;Daye Mun;Soo Rin Kim;Jeehwan Choe;Minho Song;Younghoon Kim
Journal of Microbiology and Biotechnology
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v.32
no.11
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pp.1454-1461
/
2022
Palm kernel expeller (PKE), a by-product of palm oil extraction, contains higher amounts of fiber than corn and soybean meal, but offers low energy density, protein value, and amino acid (AA) composition, limiting its use for swine. Recently however, it was reported that dietary fiber has a positive effect on the gut microbiota of the host, and therefore it is necessary to study the effect of PKE feeding on the intestinal microbiota of swine. In this study, we investigated the effects of supplementation with PKE in lactation diets on the gut microbiota composition of lactating sows and their litters. A total of 12 sows were randomly assigned to two dietary treatment groups in a completely randomized design. The treatments were a diet based on corn-soybean meal (CON) and CON supplemented with 20% of PKE. Sow and piglet fecal samples were collected before farrowing, on days 7 and 28 (weaning) after farrowing, and on days 7 and 28 (weaning) after farrowing, respectively, to verify gut microbiota composition by pyrosequencing analysis. The beta-diversity result showed a significant difference only in weaning-stage piglets, but dietary PKE altered the gut microbiota in sows by increasing the abundance of Lactobacillus compared with CON. In piglets, dietary PKE decreased the abundance of opportunistic pathogen Proteus and increased the abundance of potentially beneficial bacteria, such as Prevotellaceae and Prevotella. Our results can be helpful in developing feeding strategies and support the beneficial effects of dietary PKE to improve the gut health of animals.
Park, Jae-Won;Cui, Jing-Ai;Lee, Sang-In;Kim, Young-Hwa;Park, Joon-Cheol;Chae, Byung-Jo;Kim, In-Ho
Korean Journal of Agricultural Science
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v.42
no.4
/
pp.347-354
/
2015
This study evaluated whether dietary supplementation of tapioca could alleviate the negative effects of palm kernel meal (PKM) on growth performance and meat quality in growing and finishing pigs. In experiment 1, 120 73-dold crossbred growing pigs [$(Yorkshire{\times}Landrace){\times}Duroc$], with an average body weight of $31.7{\pm}4.5kg$, were used in a 3-week trial. In experiment 2, 120 108-d-old crossbred finishing pigs [$(Yorkshire{\times}Landrace){\times}Duroc$], with an average BW of $52.6{\pm}4.2kg$ were used in a 10-week trial. Treatments were: CON, a corn-soybean meal-based diet; PKM, 8% PKM, and TPKM, 8% PKM and 10% tapioca. No difference was observed in growth performance or meat quality among treatments in growing pigs. In finishing pigs, no difference was observed in growth performance or meat quality among CON and TPKM dietary treatments. Finishing pigs fed PKM decreases in final BW and ADG compared with those fed CON. Meat quality was not affected by dietary treatments. In conclusion, dietary supplementation of tapioca alleviated anti-nutritional effect of PKM on growth performance in growing and finishing pigs. Thus, the PKM with tapioca could be an available alternative energy source to reduce the cost of pig diets.
Abdollahi, M.R.;Hosking, B.J.;Ning, D.;Ravindran, V.
Asian-Australasian Journal of Animal Sciences
/
v.29
no.4
/
pp.539-548
/
2016
The objective of the present study was to investigate the influence of palm kernel meal (PKM) inclusion and exogenous enzyme supplementation on growth performance, nitrogen-corrected apparent metabolizable energy (AMEn), coefficient of apparent ileal digestibility (CAID) and total tract retention of nutrients in young broilers fed corn-based diets. Four inclusion levels of PKM (no PKM [PKM0], 8% [PKM8], 16% [PKM16], and 24% [PKM24]) and two enzyme additions were evaluated in a $4{\times}2$ factorial arrangement of treatments. A total of 384, one-d-old male broilers (Ross 308) were individually weighed and allocated to 48 cages (eight broilers/cage), and cages were randomly assigned to eight dietary treatments. Results indicated that the inclusion of 8% and 16% PKM increased (p<0.05) the weight gain compared to the PKM0 diet. Birds fed the PKM8 diets had the highest (p<0.05) feed intake. Weight gain and feed intake were severely reduced (p<0.05) by feeding the PKM24 diet. Enzyme supplementation increased weight gain (p<0.05), independent of PKM inclusion level. In PKM0 and PKM8 diets, enzyme addition significantly (p<0.05) lowered feed conversion ratio (FCR); whereas enzyme addition had no effect on FCR of birds fed PKM16 and PKM24 diets. In PKM0 and PKM16 diets, enzyme addition significantly (p<0.05) increased CAID of nitrogen and energy but had no effect in the PKM8 and PKM24 diets. Inclusion of PKM into the basal diet, irrespective of inclusion level, enhanced (p<0.05) starch and fat digestibility. Inclusion of PKM at 16% and 24% resulted in similar CAID of neutral detergent fiber (NDF) but higher (p<0.05) than that of the PKM0 and PKM8 diets. Enzyme addition, regardless of the level of PKM inclusion, significantly (p<0.05) increased CAID of NDF. There was a significant (p<0.05) decrease in AMEn with PKM inclusion of 24%. The present data suggest that inclusion of PKM in broiler diets could be optimized if PKM-containing diets are formulated based on digestible amino acid contents and supplemented with exogenous enzymes. If amino acid digestibility and AME of PKM considered in the formulation, it can be included in broiler diets up to 16% with no deleterious effects on growth performance.
Lee, Jun Yeob;Kim, Sang Yun;Lee, Jae Hwan;Lee, Jeong Heon;Ohh, Sang Jip
Journal of Animal Science and Technology
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v.55
no.2
/
pp.115-122
/
2013
This study was conducted to evaluate the effect of dietary ${\beta}$-mannanase supplementation and palm kernel meal (PKM) inclusion (5%) on laying performance, egg quality and nutrient utilizability of laying hens with 73 weeks of age. A total of 240 Lohmann brown laying hens with average 77.5% egg production were randomly allocated with 60 hens per treatment, 4 replicates per treatment and 15 hens per replicate. Experimental design was a completely randomized design with $2{\times}2$ factorial arrangement, with the factors being (1) two levels of PKM (0 vs. 5%) and (2) with or without dietary ${\beta}$-mannanase (480 IU/kg of diet CTCzyme$^{(R)}$) supplementation. All hens were housed in cages ($35cmW{\times}35cmD{\times}40cmH$) with 2 hens per cage for six weeks feeding trial. Laying performance was recorded daily during feeding trial. Egg quality, nutrients utilizability and blood assays were done at the end of feeding trial. Egg production was improved (P<0.05) by both dietary PKM inclusion and ${\beta}$-mannanase combined supplementation. Either ${\beta}$-mannanase or PKM did not affect feed intakes and feed conversion ratio of all diets. Egg weight of hens fed diet containing 5% of PKM had heavier (P<0.05) eggs compared with hens fed without PKM. Albumen height was improved (P<0.05) by dietary mannanase supplementation. Crude fat utilization of 5% PKM diet was higher than that of no PKM diet regardless of ${\beta}$-mannanase supplementation. Both DM and total carbohydrate utilization were decreased (P<0.05) in hens fed 5% PKM diet. Serum IgG and yolk IgY contents of PKM groups were lower (P<0.05) than those of no PKM groups. This result showed that 5% PKM diet, independent of dietary ${\beta}$-mannanase supplementation, was able to improve egg production. In addition, dietary ${\beta}$-mannanase supplementation could be used for improving the albumen height of eggs.
A bacterium producing the extracellular mannanase and xylanase was isolated from Korean farm soil by successive subcultures in a minimal medium supplemented with palm kernel meal (PKM) and rice bran. The isolate YB-1106 showed 98% similarity with Microbacterium arabinogalactanolyticum on the basis of 16S rRNA gene sequences. The additional carbohydrates including locust bean gum (LBG) and PKM increased the mannanase productivity of the YB-1106, while the xylanase productivity of the isolate was increased by wheat bran, oat spelt xylan, rice bran and xylose. Particularly, maximum mannanase and xylanase activities were obtained in the culture filtrate of tryptic soy broth supplemented with 1% LBG or 2% wheat bran, respectively. Both enzyme activities were produced at stationary growth phase. The mannanase of culture supernatant was the most active at $50^{\circ}C$ and pH 6.0, while xylanase of culture supernatant was the most active at $55^{\circ}C$ and pH 6.5. The predominant products resulting from the mannanase or xylanase hydrolysis were oligosaccharides for LBG or xylan, respectively.
A bacterial strain capable of hydrolyzing xylan and locust bean gum (LBG) was isolated from farm soil by enrichment culture using mixture of palm kernel meal (PKM) and wheat bran as carbon source. Nucleotide sequence of 16S rDNA amplified from the isolate YB-1107 showed high similarity with those of genus Cellulosimicrobium strains. Xylanase productivity was increased when the Cellulosimicrobium sp. YB-1107 was grown in the presence of wheat bran or oat spelt xylan, while mannanase productivity was increased drastically when grown in the presence of PKM or LBG. Particularly, maximum mannanase and xylanase activities were obtained in the culture filtrate of media containing 0.7% PKM or 1% wheat bran, respectively. Both enzyme activities were produced at stationary growth phase. Mannanase from the culture filtrate showed the highest activity at $55^{\circ}C$ and pH 6.5. Xylanase activity was optimal at $65^{\circ}C$ and pH 5.5. The predominant products resulting from the mannanase or xylanase hydrolysis were oligosaccharides for LBG or xylan, respectively. In addition, the enzymes could hydrolyze wheat bran and rice bran into oligosaccharides.
Seo, J.;Kim, W.;Kim, J.;Kim, J.K.;Kim, S.C.;Jang, Y.;Jang, K.;Kim, K.;Kim, B.;Park, S.;Park, I.;Kim, M.K.;Seo, K.S.;Kim, H.B.;Kim, I.H.;Seo, S.;Song, M.
Asian-Australasian Journal of Animal Sciences
/
v.28
no.7
/
pp.987-992
/
2015
This experiment was conducted to investigate the effects of palm kernel expellers on growth performance, nutrient digestibility, and blood profiles of weaned pigs. A total of 88 weaned pigs ($6.94{\pm}0.76kg$ body weight [BW]; 28 d old) were randomly allotted to 2 dietary treatments (4 pigs/pen; 11 replicates/treatment) in a randomized complete block design (sex as a block). The dietary treatments were a typical nursery diet based on corn and soybean meal (CON) and CON added with 20% of palm kernel expellers (PKE). Pigs were fed for 6 wk using a 3-phase feeding program with declining diet complexity and with phases of 1, 2, and 3 wk, respectively. Blood was collected from randomly selected 2 pigs in each pen before weaning and on d 7 after weaning. Pigs were fed respective dietary treatments containing 0.2% chromic oxide from d 29 to 35 after weaning. Fecal samples were collected from randomly selected 2 pigs in each pen daily for the last 3 days after the 4-d adjustment period. Measurements were growth performances, digestibility of dry matter, nitrogen and energy, white and red blood cell counts, packed cell volume, and incidence of diarrhea. The PKE increased average daily gain (ADG) (246 vs 215 g/d; p = 0.06) and average daily feed intake (ADFI) (470 vs 343 g/d; p<0.05) and decreased gain-to-feed ratio (G:F) (0.522 vs 0.628 g/g; p<0.05) during phase 2 compared with CON, but did not affect growth performance during phase 1 and 3. During overall experimental period, PKE increased ADG (383 vs 362 g/d; p = 0.05) and ADFI (549 vs 496 g/d; p<0.05) compared with CON, but did not affect G:F. However, no differences were found on digestibility of dry matter, nitrogen, and energy between CON and PKE. The PKE reduced frequency of diarrhea (15% vs 25%; p = 0.08) for the first 2 wk after weaning compared with CON. Similarly, PKE decreased white blood cells (8.19 vs $9.56{\times}10^3/{\mu}L$; p = 0.07), red blood cells (2.92 vs $3.25{\times}10^6/{\mu}L$; p = 0.09), and packed cell volume (11.1% vs 12.6%; p = 0.06) on d 7 after weaning compared with CON. In conclusion, addition of 20% palm kernel expellers to nursery diet based on corn and soybean meal had no negative effects on growth performance, nutrient digestibility, and blood profiles of weaned pigs.
Kim, J.;Seo, J.;Kim, W.;Yun, H.M.;Kim, S.C.;Jang, Y.;Jang, K.;Kim, K.;Kim, B.;Park, S.;Park, I.;Kim, M.K.;Seo, K.S.;Kim, H.B.;Kim, I.H.;Seo, S.;Song, M.
Asian-Australasian Journal of Animal Sciences
/
v.28
no.8
/
pp.1150-1154
/
2015
This experiment was conducted to investigate the effects of palm kernel expellers on productive performance, nutrient digestibility, and changes in white blood cells (WBC) of lactating sows. A total of 14 sows ($200{\pm}12kg$ of average body weight [BW]; 2.5 of average parity) were used and moved from gestation room to farrowing room on d 109 of gestation. Sows were randomly assigned to 2 dietary treatments in a completely randomized design. The treatments were a diet based on corn and soybean meal (CON) and CON added with 20% of palm kernel expellers (PKE). Sows were fed the treatments for 28 days (weaning) after farrowing. Blood was collected from each sow and 4 randomly selected piglets from each sow before farrowing or on d 3, 7, or 14 of lactation. Sows were fed respective treatments containing 0.2% chromic oxide from d 15 to 21 of lactation. Fecal samples were collected daily for the last 3 days after the 4-d adjustment period. Measurements were performances and WBC changes of sows and litter, nutrient digestibility of sows, and daily diarrhea of litter. Sows fed PKE had greater average daily feed intake (7.38 vs 7.10 kg/d; p<0.05) and lost less BW (-6.85 vs -8.54 kg; p<0.05) and backfat depth (-0.42 vs -0.71 mm; p<0.05) than those fed CON. However, there were no differences on digestibility of dry matter, nitrogen, and energy and weaning to estrus interval of sows fed either CON or PKE. Piglets from sows fed PKE gained more BW (203 vs 181 g/d; p = 0.08) and had less frequency of diarrhea (6.80 vs 8.56%; p = 0.07) than those from sows fed CON. On the other hand, no difference was found on preweaning mortality of piglets from sows fed either CON or PKE. Sows fed PKE had lower number of WBC (9.57 vs $11.82{\times}10^3/{\mu}L$; p = 0.09) before farrowing than those fed CON, but no difference on d 3 and 7. Similarly, piglets from sows fed PKE had also lower number of WBC (7.86 vs $9.80{\times}10^3/{\mu}L$; p<0.05) on d 14 of lactation than those from sows fed CON, but no difference on d 3 and 7. In conclusion, addition of 20% palm kernel expellers to lactation diet based on corn and soybean meal had no negative effects on productive performance, nutrient digestibility, and WBC changes of lactating sows.
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