Journal of the Korean Society of Food Science and Nutrition
/
v.33
no.9
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pp.1537-1543
/
2004
The purpose of this study was to determine the effect of dietary linseed oil and canola oil on the deposition n-3 polyunsaturated fatty acid in pork. Twelve pigs weighing 50 kg were offered one of four diets based on corn and soybean meal and containing tallow, linseed oil, canola oil or mixed oil (linseed oil plus canola oil). The pigs were slaughtered at approximately 110 kg of their market live weight. Linseed oil, canola oil or mixed oil did not affect any of the three indicators of growth performance-body weight gain, feed intake and feed efficiency. Saturated fatty acid content of plasma was the highest in tallow oil group, while the plasma proportion of saturated fatty acid was lowered in linseed oil, canola oil and mixed oil group from 11.84% to 16.54% than tallow group (p<0.05). The plasma n-3 polyunsaturated fatty acid was not detected at all in the tallow-fed pigs, while the plasma proportion of n-3 polyunsaturated fatty acid were higher in linseed oil, canola oil and mixed oil from 4.68% to 12.83% than tallow group (p<0.05). All three lipid supplements containing n-3 poly-unsaturated fatty acid increased the content of pork belly $\alpha$-linolenic acid (18:3n-3) by 9.43% relative to the tallow values (p<0.05). Feeding linseed oil or canola oil increased the n-3 : n-6 ratio in pork belly to 0.68, and increased the polyunsaturated fatty acid : saturated fatty acid ratio to 0.70 (p<0.05). This result showed that feeding linseed oil and canola oil can produce novel functional pork enriched in n-3 polyunsaturated fatty acid.
Tae Wook Goh;Hong Jun Kim;Kunyong Moon;Yoo Yong Kim
Animal Bioscience
/
v.36
no.6
/
pp.929-942
/
2023
Objective: This study was conducted to evaluate the effects of β-glucan with vitamin E supplementation on the growth performance, blood profiles, immune response, pork quality, pork flavor, and economic benefit in growing and finishing pigs. Methods: A total of 140 growing pigs ([Yorkshire×Landrace]×Duroc) were assigned to five treatments considering sex and initial body weight (BW) in 4 replications with 7 pigs per pen in a randomized complete block design. The experimental diets included a corn-soybean meal-based basal diet with or without 0.05% or 0.1% β-glucan and 0.02% vitamin E. The pigs were fed the diets for 12 weeks (phase I, 0 to 3; phase II, 3 to 6; phase III, 6 to 9; phase IV, 9 to 12). The BW and feed intake were measured at the end of each phase. Blood samples were collected at the end of each phase. Four pigs from each treatment were selected and slaughtered for meat quality. Economic benefit was calculated considering the total feed intake and feed price. Pork flavor was analyzed through inosine monophosphate analysis. Results: The average daily gain and feed efficiency were improved compared to the control when β-glucan or vitamin E was added. Supplementing 0.05% β-glucan significantly increased the lymphocyte concentration compared to the addition of 0.1% β-glucan and the content of vitamin E in the blood increased when 0.02% vitamin E was added. The treatment with 0.1% β-glucan and 0.02% vitamin E showed the most economic effect because it had the shortest days to market weight and the lowest total feed cost. The addition of β-glucan or vitamin E had a positive role in improving the flavor of pork when considering that the content of inosine monophosphate was increased. However, carcass traits and meat quality were not affected by β-glucan or vitamin E. Conclusion: The addition of 0.1% β-glucan with 0.02% vitamin E in growing and finishing pig diets showed great growth performance and economic effects by supplying vitamin E efficiently and by improving the health condition of pigs due to β-glucan.
This experiment was conducted to evaluate the influence of phase feeding methods on growth performance, carcass characteristics, pork quality, and economical efficiency in growing-finishing pigs. A total of 120 crossbred pigs ([Yorkshire ${\times}$ Landrace] ${\times}$ Duroc), average initial body weight 25.23 ${\pm}$ 2.66 kg, were allotted to 5 treatments by body weight and sex in a randomized complete block (RCB) design. Each treatment had 6 replicates with 4 pigs per pen. The treatments were 1) A (fed late weaner feed during whole phase), 2) B (fed late weaner feed in growing phase and grower feed in finishing phase), 3) C (fed grower feed during whole phase), 4) D (fed grower feed in growing phase and early finisher feed in early and late finishing phase), 5) E (fed grower feed in growing phase, early finisher feed in early finishing phase and late finisher feed in late finishing phase). Commercial diets bought from private feed company were used for this experiment. During the early growing phase (6 wks), treatments A and B showed higher growth performance than that of other treatments (P<0.05). However, growth performance tended to be similar among treatments at 10 wks after feeding and there was no difference in time of market weight (13 wks). Moreover, blood urea nitrogen (BUN) concentration was lowered in treatment E than other treatments during whole experimental period (P<0.01). Carcass characteristics and pork quality were measured when body weight of pigs reached at 110.33 ${\pm}$ 2.1 kg. Days to market weight (110 kg), quality grade, pork color, and pork pH did not show any significant difference among treatments. These results suggested that phase feeding based upon growth stages of pigs showed no detrimental effects on growth performance and the pork quality. Moreover, feed cost was saved approximately 37% by phase feeding method without delaying of days to market weight compared to general conventional feeding method (B) of swine farm in Korea.
This study surveyed the Korean Kimchi preference for Chinese, potential Kimchi improvement for Chinese market adaptation and Kimchi application for Chinese cuisine, with the aim of spreading the recognition of Kimchi throughout the world, especially in China, by giving information and developing local types which could be expected to be suitable for utilization of Chinese food life. The subjects were consisted of 298 Chinese(male 108, female 190) residing in Weihai, Yantai and Qingdao, in Shandong province. The questionnaire form was developed and used for self administered evaluation. The collected data were analyzed by SAS package. Baechu Kimchi was found to be the most well-known Kimchi for Chinese, and Kkakdugi, Oi Kimchi, Yoelmu Kimchi and Nabak Kimchi were followed in order. Baechu Kimchi(75.9%) was found to be the most favorite Kimchi for Chinese, and Oi Kimchi(59.3%), Kkakdugi(52.8%), Nabak Kimchi(39.3%) and Yoelmu Kimchi(37.7%) were followed in order. The subjects knew about the Korean foods made with Kimchi, such as Kimchi kimbap(74.8%), Kimchi bibimbap(71.5%), Kimchi bokkeumbap(61.7%), Kimchi guk(58.1%) in order. But the experience of consumption for Korean foods made with Kimchi was low compared to the knowledge of the Korean foods made with Kimchi. Chinese's most favorite foods made with Kimchi were Kimchi bossam, Kimchi bibimbap, Kimchi bokkeumbap and Kimchi kimbap, Kimchi bokkeum, Kimchi tteoksanjeok and Kimchi jeon in order. Among the 9 kinds of new Chinese foods made with Kimchi, Kimchi chao zhurou(fried pork with Kimchi), Kimchi chao mian(fried noodle with Kimchi), Kimchi chao youcai xiaren(fried rape and prawn with Kimchi), Kimchi zhuroushuijiao(dumpling with pork and Kimchi), Kimchi gedatang(wheat flakes soup with Kimchi) and Kimchi hundun(dumpling with Kimchi), and Kimchi youbing(panfried flour with Kimchi), Kimchi lamian(handmade knife-cut noodle with Kimchi) and Kimchi tangyuan(tangyuan with Kimchi) were preferred foods by the subjects in order.
Journal of the Korean Society of Food Science and Nutrition
/
v.35
no.3
/
pp.328-334
/
2006
The main objective of the present study was to determine the effect of dietary ${\beta}-cyclodextrin\;({\beta}CD)$ on reducing the cholesterol content of pork. Twelve swine of 50 kg body weight were randomly distributed into four groups of three heads each and fed experimental diets for 9 weeks until they reached a market weight of 110 kg. They were assigned to the four experimental diets containing 0% (control), 1.5%, 3.0% or 5.0% pure ${\beta}CD$. Daily feed intake, body weight gain and feed efficiency were not significantly different between any of the four group. The plasma total lipid, triacylglycerol and total cholesterol content of the swine in the three ${\beta}CD$-fed groups were significantly (p<0.05) decreased when compared to those in the control group, and were significantly (p<0.05) reduced by 21.80%,55.58% and 27.69%, respectively, in the swine fed on 5% ${\beta}CD$. The cholesterol content of pork belly (mg/100g) was significantly (p<0.05) decreased by 5.33 mg, 12.70 mg and 15.23 mg in the swine maintained on 1.5%, 3.0% and 5.0% ${\beta}CD$, respectively. The cholesterol content of pork belly, when expressed as the rate of reduced cholesterol, was significantly (p<0.05) decreased by 6.44%, 15.36% and 18.42% in groups of 1.5%, 3.0% and 5.0% ${\beta}CD$, respectively, when compared to that of the control group. These results suggest that dietary ${\beta}CD$ may be classified as dietary fiber which can modulate cholesterol metabolism in swine.
This study was performed to determine whether transglutaminase (Aciva-TG, TGase) can be used to reduce the salt level in low-fat sausages and to replace emulsified meats (10%) for the manufacture of restructured meat products (RMP). Pork hams and loins were collected from a local retail market in Gwangju, Korea and used for the manufacture of sausages and RMPs, respectively. TGase at the level of 0.1% can permit the reduction of the salt level from 1.5% to 1.0% in low-fat comminuted sausages without any quality defects, however a crumbly texture was found if the salt level was reduced below 1.0% even though it combined with certain amounts of TGase. No differences in chemical composition and physical properties were observed (p>0.05) among treatments. Approximately 0.3% of TGase can replace 10% emulsified meats, which are normally used for improvement of binding capacity to manufacture RMPs, without quality defects. This study suggests that TGase could be used for the manufacture of low-fat, low-salt functional meat products for the improvement of textural characteristics and binding capacity without adverse effects.
Journal of the Korean Society of Food Science and Nutrition
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v.7
no.1
/
pp.41-42
/
1978
Starch is widely used to make such fish meat paste products as Kamaboko and fish sausage in order to supplement the elasticity and increasing the weight of products. In this paper, the amounts of starch in the marketed products such as fish meat paste, fish sausage, beef sausage, hotdog sausage and pork ham were examined and discussed the relation between starch content and quality of the products. From the result, the amount of starch in steamed and packaged Kamaboko, steamed Kamaboboko, broiled fish meat paste(Chikuwa), fried fish meat paste products, fish sausage, pork ham and hotdog sausage were 9.6%, 13.9%, 14.6%, 18.5%, 12.2%, 11.9% and 19.2%, respectively. The result showed that the relation between the amount of starch added and quality of products were corelated.
Park Beom-Young;Cho Soo-Hyun;Hwang In-Ho;Kim Jin-Hyoung;Oh Suk-Jung;Lee Jong-Moon;Yun Sang-Gi
Food Science of Animal Resources
/
v.24
no.3
/
pp.221-224
/
2004
The feeding group, composed of weaning pigs fed 3 mL of glucosamine derivatives, was compared for the carcass and quality characteristics with the unfeeding control group for 25∼70 days since they were born. The results were as follows; There were no significant differences in carcass weight and back-fat thickness between the feeding group and the unfeeding group although the feeding group had low ranges of standard error when compared to the control. Feeding group had higher incidence frequencies of A grade (42.7%) than the control (29.2%). The feeding group and unfeeding group had no significant differences in meat color, cooking loss, WBS, pH, WHC and purge loss. Results from this study showed that feeding GD had effect on the decrease the market weight and production of consist carcass weight, however, the feeding GD had no effect on pork quality during rearing times after weaning.
Journal of the Korean Society of Food Science and Nutrition
/
v.36
no.5
/
pp.563-568
/
2007
We report that the gamma linolenic acid content of pork is higher in finishing pigs fed diets containing hemp seed oil, evening primrose oil or borage oil as the sources of gamma linolenic acid. Thirty-six three crossing swines ($Landrace{\times}Yorkshire{\times}Duroc$), 80 kg in body weight, were randomly separated into four treatment groups with three pens per treatment and three animals per pen. The finishing swines were fed the experimental diets for 35 days until they reached the market weight of 110 kg. The animals were assigned to the four experimental diets: control diet containing 5.00% tallow, T1 containing 5.00% hemp seed oil (hemp seed oil 40:soybean oil 60), T2 containing 5.00% evening primrose oil (primrose oil 40:soybean oil 60) and T3 containing 5.00% borage oil (borage oil 40:soybean oil 60). The plasma triacylglycerol and total cholesterol content of the swine in the gamma fatty acids-fed groups were significantly (p<0.05) lower than those in the control group. No gamma linolenic acid was detected in the plasma of the control group, while tile level of gamma linolenic acid treatment groups was significantly (p<0.05) higher than the control in the order of T3, T2 and T1. Moreover, the level of gamma linolenic acid increased with increasing number of feeding days. There was a significant difference between the treatment groups (p<0.05). There was a difference in the amount of saturated fatty acid and polyunsaturated fatty acid accumulated in the pork according to the treatment groups or the parts of the pork meat. The level of n-3 fatty acid of pork was highest in T1, which had been fed the hemp seed oil, followed in order by T3 and T2 (p<0.05). The content of gamma linolenic acid in pork was highest in T3, which had been fed the borage oil, followed in order by T2 and T1 (p<0.05). In particular, the level of gamma linolenic acid in pork increased in the order of the back fat, pork belly, ham and loin.
Kim, J.H.;Seong, P.N.;Cho, S.H.;Park, B.Y.;Hah, K.H.;Yu, L. H.;Lim, D.G.;Hwang, I.H.;Kim, D.H.;Lee, J.M.;Ahn, C.N.
Asian-Australasian Journal of Animal Sciences
/
v.21
no.1
/
pp.138-143
/
2008
A study was conducted to evaluate nutritional value for twenty-one pork muscles. Ten market-weight crossbred pigs (five gilts and five barrows) were used for evaluating proximate chemical composition, cholesterol, total iron, calorie and fatty acid contents. As preliminary analysis revealed no noticeable sex effect, pooled data from both sexes were used for the final analysis. M. rectus femoris had the highest moisture content, while m. latissimus dorsi was lowest in moisture content (p<0.05). Protein content was highest for m. longissimus dorsi and lowest for m. supraspinatus (p<0.05). The tensor fasciae and latissimus dorsi muscles contained the highest intramuscular fat (p<0.05), while rectus femoris, adductor and vastus lateralis were lowest in intramuscular fat content. When simple correlations between chemical values were computed for the pooled dataset from all muscles, intramuscular fat had significant (p<0.05) negative linear relationships with moisture (r = -0.85) and protein (r = -0.51) contents. Calorie levels were not significantly affected by fat content, while rectus femoris and latissimus dorsi muscles showed lowest and highest calorie contents, respectively (p<0.05). Polyunsaturated fatty acid content was highest (p<0.05) for both m. adductor and m. rectus femoris, while it was lowest for m. longissimus dorsi. Collectively, the current study identified a large amount of variation in nutritional characteristics between pork muscles, and the data can be used for the development of muscle-specific strategies to improve eating quality of meats and meat products.
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