A study was conducted to compare growth performance of six female commercial Korean native chicken (KNC) crossbreeds from hatching to twelve weeks of age. Three hundred and twelve, 1-day-old female commercial KNC were used within 1 paternal line and 6 maternal lines. The chickens were allocated to 24 battery cages to give 4 replicates per strain with 13 chickens per cage. The chickens were reared under continuous lighting (24 h) and water was available at all times. Ad-libitum feeding was practiced throughout the experimental period. Among the six different strains, 2A had the greatest bodyweight (BW) at 42 days after hatching (p < 0.05). No BW difference between six crossbreed strains (p > 0.05) was found thereafter. Crossbreed 1A had the higher average daily gain (ADG) than crossbreed 2A and 3A chickens (p < 0.05), whereas crossbreed 4A, 5A, and 6A had similar ADGs to that of crossbreed 1A (p > 0.05) at 84 days after hatching. Furthermore, crossbreed 4A had a great average daily feed intake (ADFI) from hatching to 84 days (p < 0.05). Nonetheless, there was no difference in the feed conversion ratio (FCR) and uniformity between six crossbreed strains for the experimental period (p > 0.05). Despite that 1A, 4A, and 6A had the higher viability (p < 0.05) than crossbreed 2A and 5A, they had a similar viability than crossbreed 3A (p > 0.05). With this in mind, crossbreed 2A had greater BW, ADG, and FCR than other chicken crossbreeds from hatching to 84 days, although they had a lower viability than others.
Objectives : To observe the effect of 4 kinds of Korean medicine and complex extracts on the anti-stress of chronic mild stress Rat model, so as to find out the machanism of its pharmacological effects. Methods : 64 healthy SD Rats were randomly divided into 8 groups. Model Design by chronic stress(CSM), and carried out the forced swimming test. We investigated the body weight, feed and water intake, feed conversion ratio and measured parameters to changes in swimming time, immobility time, 2 and 24 hours of feces, corticosterone hormone and blood glucose level. Results : In this experiments, body weight gain and feed intake were higher in all korean medicinal herb group. Swimming time were increased by Zizyphus jujuba and Gagamsanzointang(SZT) groups and immobility time was significantly lower by Zizyphus jujuba and Fluoxetine(FLX) groups. The result of corticosterone hormone level were significantly lower in Fluoxetine(FLX) and Gagamsanzointang(SZT) but blood glucose was not significantly difference. In 2 hours after fecal frequency result were significantly lower in Zizyphus jujuba group. but SZT group were increased. This result caused by acute stress but 24 hours of feces were restored to normal. Conclusions : 5 kind of Korean Medicinal Herbs extracts has good anti-stress effects, and also to clear the circulatory system and regulate blood glucose and improve bowel function. We suggest that use a single Korean medicine rather than the combination to relieve stress.
Objectives : This study was performed to investigate the inhibitory effects of Cheongshimyeonja-tang water extracts(CSYJ) on high fat diet-induced obesity and hyperlipidemia in C57BL/6J mice. Methods : The experimental animals were divided into four groups; normal diet-fed control(ND), high fat diet-fed control(HFD), HFD+CSYJ 150 mg/kg(CSYJ 150), and HFD+CSYJ 300 mg/kg(CSYJ 300). Obesity with hyperlipidemia was induced by feeding high fat diet(40%), and CSYJ was administrated orally into mice every day for 5 weeks. The effect of CSYJ on the serological parameters for Obesity with hyperlipidemia was evaluated. Results : CSYJ-treated groups revealed significantly reduced body weight and feed intake, as well as feed efficiency ratio, compared to HFD-fed group in dose-dependent manner. CSYJ reduced significantly the serum levels of triglyceride, total cholesterol and LDL-cholesterol elevated by intake of high fat diet feed, while the increased serum levels of HDL-cholesterol attenuated levels of atherogenic index and cardiac risk factor. It also reduced the blood levels of insulin and leptin in HFD group, and inhibited lipid accumulation in organs such as liver and abdomal adipose tissue. Moreover oral administration of CSYJ decreased significantly the blood level of alanine aminotransferase(ALT), aspartate aminotransferase(AST) and lactate dehydrogenase(LDH), and lipid peroxide(LPO), compared to HFD-fed group in dose-dependent manner. Conclusions : These results indicate that CSYJ could reduce high fat diet-induced obesity and hyperlipidemia, suggesting its clinical usefulness for declining body fat and hyperlipidemia.
Shin, Yun Kyung;Choi, Young Jae;Gil, Hyun Woo;Kim, Hyo Won
Journal of Marine Life Science
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v.7
no.1
/
pp.45-51
/
2022
The profer salinity range for aquaculture of hybrid grouper (Epinephleus bruneus♀ × Epinephleus lanceolatus♂) were evaluated in terms of their survival, growth, feed intake and physiological responses after 30 days of exposure to different salinities (0 psu, 3 psu, 5 psu, 10 psu, 15 psu, 20 psu, 25 psu, 30 psu). Hybrid grouper all died at 0 psu salinity on the 4th day of exposure but all hybrid survived at a salinity of 5 psu or higher during the exposure period. Body length and weight increased above 5 psu salinity and the growth rate was the highest at 30 psu. Hybrid exposed to 3 psu did not eat the feed pellet. Feed intake did not show a significant difference between salinity 20 psu, 25 psu and 30 psu. Plasma osmolality of the juvenile hybrids exposed to different salinities was 341~368 mg Osmol/kg above 5 psu. The oxygen consumption rate was the highest at 30 psu with 163.6±22.3 mg O2/kg fish/h. SOD, CAT and GSH-PX were significantly higher at 15 psu. Therefore, the critical salinity for survive of the juvenile hybrid was 5 psu, and the proper salinity for optimal culture was analyzed with 20~30 psu.
Two experiments were conducted to study the effect of temperature on growth and survival of yearling sea bass, Lateolabrax japonicus reared from 3$^{\circ}C$ to 33$^{\circ}C$. In the I st experiment, we used yearlings fish averaging 19.2$\pm$0.2 cm/fish (Mean$\pm$S.E.M.) of total length (TL) and 67.0$\pm$1.8 g/fish (Mean$\pm$S.E.M.) of body weight (BW), and we cultured the fish at 3, 6, 9, 12 and 17$^{\circ}C$ for 90 days. In the 2nd experiment, the experimental fish averaging 24.9$\pm$0.1 cm/fish (Mean$\pm$S.E.M) of TL and I 46.4$\pm$3.0 g/fish (Mean$\pm$S.E.M) of BW were reared at 21,24,27,30 and 33$^{\circ}C$ for 90 days. During these experiments, we measured food intake, feed efficiency, survival and growth (TL and BW) in the both experiments. Although food intake of the yearling increased with the temperature, the feed efficiency was only enhanced within the temperature range, from 21 to 27$^{\circ}C$. Growth of yearling was normal within the temperature range from 17 to 3$0^{\circ}C$, but it was stoped or reduced in other temperatures. Survival rate was significantly reduced in 3$^{\circ}C$ from the 1st experiment and in 30 and 33$^{\circ}C$ from the 2nd experiment, but there was no significant difference among other groups.
Cholesterol-lowering effect of pine nut on mice was investigated by examining changes in body weight, feed intake, and triglyceride, total cholesterol, high density liporotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), and very low density lipoprotein cholesterol (VLDL-C) contents in mice plasma. Changes in body weight and feed intake between pre-designed experimental animal groups fed various contents of cholesterol and pine nut and control group fed basal diet were not significantly different. Food efficiency ratio of experimental groups fed higher than 10% pine nut was significantly higher than that of control group. Apparent differences in atherogenic index representing cholesterol-lowering effect in plasma were not found among all groups fed 0-20% pine nut. Inhibition activities of water and hexane extracts of pine nut on HMG-CoA reductase and cholesterol esterase were examined in vitro. Hexane extract showed 66% inhibition effect on HMG-CoA reductase, whereas none was observed with water extract.
Phipek, W.;Nagasinha, C.;Vallisuth, S.;Nongyao, C.
Asian-Australasian Journal of Animal Sciences
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v.24
no.9
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pp.1268-1273
/
2011
The present study was conducted to determine a feasible method of protein concentrate extraction from rice bran (RBPC) and its effect as a substitution for skim milk in early weaning pig diets. An investigation to extract protein concentrate from full fat rice bran was undertaken to determine the best ratio of water and rice bran, the amount of NaOH and a HCl solvent to use in a simple paddle-type mixer with modified spinning to produce RBPC. The results stated that the best ratio for water mixing in the RBPC extraction process was 1:5 with 20 g NaOH and 30 min in a paddle-type mixer at 300 rpm. A mix of 250 ml 0.2 N HCl was optimum for neutralization and protein precipitation. After the fluid was spun out with a washing machine, the sediment was left for 12-14 hours to complete the filtration. One kilogram of rice bran could produce an average of 324.5 gram RBPC and it contained 3.40% ash, 496.48 kcal of GE/100 gram, 1.94% crude fiber, 28.20% ether extract, 7.64% moisture and 16.66% crude protein, respectively. A total of 45 crossbred piglets, weaned at 3 weeks of age were allotted into control diet (A) and dietary treatments formulated with a four different rates of RBPC substitution for skim milk at a percentage of 25 (B), 50 (C), 77 (D) and 100 (E) respectively, in a randomized complete block (RCB) design. All piglets had free access to feed and water until 8 week of age when the experiment ended. Feed intake, average daily gain, growth rate and feed efficiency were not affected by dietary treatments. Blood test parameters after completion of the growth trial indicated normal health. Even though the mean of cell hemoglobin concentration was significantly different between treatments (p<0.05) it was still within the normal range. The cost difference for BW gain of 100% RBPC substituted for skim milk in the weaning diet was approximately 35% lower than that of the control and the relative cost of production was 96.67, 92.85, 70.75 and 64.48% lower for the replacement of 25, 50, 75 and 100% of skim milk respectively. These results implied that this technology is feasible for use by small scale farmers to improve their self-reliance.
Yang, J.S.;Jung, H.J.;Xuan, Z.N.;Kim, J.H.;Kim, D.S.;Chae, B.J.;Han, In K.
Asian-Australasian Journal of Animal Sciences
/
v.14
no.10
/
pp.1450-1459
/
2001
These experiments were conducted to investigate the effects of different feeding and processing methods of diets on performance, morphological changes in the small intestine and nutrient digestibility of growing-finishing pigs. One-hundred fifty growing pigs ($Yorkshire{\times}Landrace{\times}Duroc$; initial body weight of $23.33{\pm}0.75kg$) and one-hundred twenty finishing pigs ($Yorkshire{\times}Landrace{\times}Duroc$; initial body weight of $59.22{\pm}0.56kg$) were used in Exp. 1 and Exp. 2, respectively. Pigs were grouped on the basis of body weight and gender, and randomly allotted into 6 different treatments with 5 replications in each treatment in a $2{\times}3$ factorial arrangement. Treatments were 1) dry feeding with a mash diet (DM), 2) dry feeding with a pelleted diet (DP), 3) dry feeding with an expanded crumble diet (DEC), 4) dry/wet feeding with a mash diet (WM), 5) dry/wet feeding with a pelleted diet (WP), and 6) dry/wet feeding with an expanded crumble diet (WEC). In Exp. 1 (growing phase), there was no significant difference in average daily gain (ADG) and average daily feed intake (ADFI) among treatments during the entire experimental period, but feed conversion ratio (FCR) was significantly (p<0.05) improved in pigs fed pelleted diets regardless of feeding method. FCR was best in pigs fed a DP diet and worst in pigs fed a WM diet. Pigs fed a pelleted diet showed a 6.2% or 4.0% improvement in FCR compared with those fed a mash diet or an expanded crumble diet. Water disappearance was not significantly affected by dry/wet feeding or feed processing. Significant differences in villus height were not found among treatments, but villus height tended to be improved by dry/wet feeding. Dry/wet feeding or feed processing did not affect crypt depth. Digestibilities of calcium and phosphorus were significantly (p<0.05) improved in pigs fed an expanded crumble diet compared with pigs fed mash diets. Especially, pigs fed a WEC diet digested 8.1% more P than those fed a DM diet. Feed cost per kg weight gain (FCG) tended to be increased by dry/wet feeding rather than dry feeding. In Exp. 2 (finishing phase), ADG and ADFI were not significantly different among treatments, but a significant difference in FCR was found among feed processing forms. The best FCR was obtained in pigs fed a pelleted diet. Pigs fed a DP diet showed a 11.3% improvement compared with those fed a DEC diet. Water disappearance was significantly (p=0.0408) decreased by feeding the mash diet. However, water disappearance was not affected by dry/wet feeding during the finishing period. The villus height and crypt depth were not significantly different among treatments. However, crypt depth tended to be decreased by dry/wet feeding at the mid part of the small intestine. Fat digestibility was improved by dry feeding rather than dry/wet feeding, and was improved by 4.8% by feeding pellet diets compared with expanded crumble diets. Except for carcass grade, carcass characteristics were not significantly (p<0.05) different among treatments. Carcass grade was the best in pigs fed a WP diet. Feed cost per kg weight gain (FCG) was significantly decreased in pigs fed a pelleted diet compared with those fed an expanded crumble diet, and tended to be decreased by dry/wet feeding. In conclusion, these studies suggest that feeding the pelleted diet to growing-finishing pigs can be beneficial in terms of FCR and production cost. Dry/wet feeding can be helpful for the maintenance of villus height, but may not be reflected in improved growth performance or reduction of production costs.
Kim, Kyong-Min;Lee, Jung-Uie;Kim, Jae-Woo;Han, Seok-Jung;Kim, Kyoung-Duck;Jo, Jae-Yoon
Journal of Aquaculture
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v.21
no.4
/
pp.294-298
/
2008
Daily feeding rates on parrot fish of different body weights (10-30 g, 40-60 g, 70-120 g, 130-240 g, 250-480 g, < 480 g) were investigated under six water temperatures of $15.1^{\circ}C$, $19.2^{\circ}C$, $22.5^{\circ}C$, $23.0^{\circ}C$, $24.7^{\circ}C$ and $26.5^{\circ}C$. The lowest and highest daily feed intakes (%/body weight/day) of the smallest fish group (10-30 g) were 2.24% and 6.04% at $15.1^{\circ}C$ and $24.7^{\circ}C$ temperatures, respectively. Daily feed intakes of 40-60 g fish group were recorded as 1.14% and 3.85% at 15.1 and 24.7, respectively. But, feed intake of bigger group (250-480 g) were 0.48% and 2.06% under $15.1^{\circ}C$ and $26.5^{\circ}C$, and these values were relatively lower than those of smaller fish groups. Daily feeding intakes of parrot fish fed extruded pellet tended to decrease when fish weight increased and water temperature decreased.
Habeeb, Tajudeen;Joseph, Moturi;Abdolreza, Hosseindoust;SangHun, Ha;Jun Young, Mun;YoHan, Choi;SooJin, Sa;JinSoo, Kim
Journal of Animal Science and Technology
/
v.64
no.4
/
pp.782-791
/
2022
The purpose of this study is to evaluate the effects of multiple cooling systems and different drinking water temperatures (DWT) on the performance of sows and their hair cortisol levels during heat stress. In this study, the effect of four different cooling systems: air conditioner (AC), cooling pad (CP), snout cooling (SC), and mist spray (MS), and two DWT, namely low water temperature (LWT) and high water temperature (HWT) on 48 multiparous sows (Landrace × Yorkshire; 242.84 ± 2.89 kg) was tested. The experiment is based on the use of eight replicas during a 21-days test. Different behaviors were recorded under different cooling treatments in sows. As a result, behaviors such as drinking, standing, and position change were found to be lower in sows under the AC and CP treatments than in those under the SC and MS treatments. Lying behavior increased under the AC and CP systems as compared with that under the SC and MS, systems. The average daily feed intake (ADFI) in sows and weight at weaning in piglets was higher under the AC, CP, and LWT treatments than under the SC, MS and HWT treatments. Sows subjected to SC and MS treatment showed higher hair cortisol levels, rectal temperature, and respiratory rate during lactation than those under AC and CP treatments. Hair cortisol levels, rectal temperature, and respiratory rate were also higher under the HWT than under the LWT treatment. As per the results of this study, the LWT has no significant effect on any of the behavioral factors. Taken together, the use of AC and CP cooling treatment is highly recommended to improve the behavior and to reduce the stress levels in lactating sows.
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