We investigated factors affecting primary cultures of Pacific abalone Haliotis discus hannai ovary-dissociated cells to identify general aspects of their early-phase culture. Ninety-seven cell populations derived from 30 individuals were cultured in different media with varying compositions of medium supplements, and initial attachment, subculture, and survival for ${\geq}10$ weeks were assessed according to medium composition and individual. We also examined the time required for subculture and the rate of cell death according to both culturing period and passage number within 10 weeks. A lack of fetal bovine serum (FBS) and hemolymph significantly inhibited the growth of cultured cells, while we detected no significant effect of medium composition on initial cell attachment. Through data reallocation, with the omission of data from cell populations cultured in FBS-free and hemolymph-free media, we showed that growth inhibition was also affected by individual differences among the abalones used. During the culture, we observed four different types of cell morphology. Moreover, considerable time was required for subculture-18.4 and 19.5 days for first and second subcultures, respectively-and cell death did not occur within 30 days or for passage 0. Our results will provide valuable information for developing universal cell culturing guidelines in abalone species and suggest the feasibility of culturing abalone ovary-dissociated cells.
This study was conducted to develop a serum-free, defined medium of IVM of pig oocytes. The TCM-199 with supplemented with polyvinylalcohol(PVA), polyvinylpyrrollidone(PVP) and porcine follicular fluid(pFF) were used as basal medium. The effects of the these additives on the rates of maturity and development under in-vitro fertilization and in vitro culture were examined and subsequently considered on the possibilities be sustituted for the bovine serum albumin(BSA). Maturation rate of pig oocytes in IVM media containing PVA(82.4%), pFF(89.4%) and BSA(90.0%) were significantly higher(P<0.05) than that of PVP(78.6%). Cleavage rate after IVF of PVP(64%) was significantly lower(P<0.05) than these of PVA(73%), pFF(77%) and BSA(73%) supplements. in vitro development rates to morulae and blastocyst on PVP(54%) were also significantly lower(P<0.05) than these of the supplements of PVA(63%), pFF(69%) and BSA(65%). In comparison of maturation and fertilization rates of pig oocytes in each supplements, the maturity rates of PVA(82.4%), pFF(89.4%) and BSA(90.0%) were significantly lower(P<0.05) than that of PVP(72.4%) and while, the fertilization rates of pFF(87.1%) and BSA(89.1%) were significantly higher(P<0.05) than these of PVA(78.0%) and PVP(70.6%). It may be concluded that PVA and pFF can be substituted far BSA in medium for culturing pig oocytes; however, it may be considered that PVP were limited to for BSA in the in vitro culture of the embryos.
Kim, Ah-Ra;Lee, Jae-Joon;Cha, Sun-Sook;Chang, Hae-Choon;Lee, Myung-Yul
Journal of the Korean Society of Food Science and Nutrition
/
v.41
no.5
/
pp.621-629
/
2012
This study investigated the effect of soybeans, $chungkukjang$, and $doenjang$ on blood glucose and serum lipid profile in streptozotocin (STZ)-induced diabetic rats. Male Sprague-Dawley rats weighing 205 g were divided into non-diabetic and diabetic groups. The diabetic groups were further subdivided into four experimental groups: a normal group (N), a diabetic control group (STZ-C), a diabetic group fed autoclaved soybean powder (STZ-S), a diabetic group fed $chungkukjang$ powder (STZ-CKJ) and a diabetic group fed $deonjang$ powder (STZ-DJ). Food and water intakes were higher in the diabetic groups than in the N group. The body weight gain and food efficiency ratios were higher in the STZ-S, STZ-CKJ, and STZ-DJ groups than in the STZ-C group, but created no significant changes between the diabetic groups on food intake and body weight gain. The whole blood level at 4 weeks of the STZ-CKJ group was significantly lower than the STZ-C group. Serum glucose levels of the STZ-S, STZ-CKJ, and STZ-DJ groups were significantly lower than the STZ-C group, but there was no significant change in serum insulin levels. The AST and ALP activities in serum were markedly higher in the STZ-C group, but these decreases in relation to diabetes increased in the STZ-S, STZ-CKJ, and STZ-DJ groups. The level of serum triglycerides was lower in the STZ-CKJ and STZ-DJ groups than in the STZ-C group, whereas level of serum HDL-cholesterol was higher in the STZ-CKJ and STZ-DJ groups. Levels of total serum and LDL-cholesterol were higher in the diabetic groups compared with the N group, but significantly decreased in the STZ-S, STZ-CKJ, and STZ-DJ groups compared to the STZ-C group. These results indicate that dietary supplements of soybean, $chungkukjang$ and $doenjang$ may improve blood glucose and lipid metabolism and help prevent or attenuate the progression of diabetes in STZ-induced diabetic rats.
The experiment was conducted to compare the effects of supplements of copper, vitamin I and selenium on growth and immune responses of broiler chicks fed cornsoy diets. The basal diet contained 21% crude protein, 2,800 kcal ME, 10 mg Vitamin E, 10 mg copper and 0.1 mg selenium per kg diet. Additions of the basal diet were copper (150mg and 250 mg/kg) or combination of vitamin I(200 mg/kg) and selenium(2 mg/kg). Serum immunoglobulin G(IgG) concentrations and body weight gain were determined weekly from hatching to 7 weeks of age. Additions of copper(150mg, 250mg) to the basal diet were showed, at the four weeks of age, 4.8% and 4.5% higher in body weight gain than that of control group, respectively. The active immune system of copper and (Vit. E+Se) treated groups developed one week earlier than control group(basal diet). Negative correlation between IgG concentration and body weight gain was showed at the period from hatching to three weeks of age and, thereafter, positive correlation were identified (p<0.01). Mortality rates were observed lower in all treated groups than that of control. In conclusion, the lower the levels of serum IgG, at the first two weeks of age, the lower in disease Infection and the higher in body weight gain.
Twenty eight 3-4 month old castrated Black Bengal kids (Capra hircus) were used to determine the effects of source and level of dietary copper (Cu) concentration on their performance and nutrient utilization. Cu was supplemented (0, 10, 20 and 30 mg/kg diet DM) as copper sulfate ($CuSO_4$, $5H_2O$) or copper proteinate (Cu-P). Kids were fed a basal diet containing maize (19.5%), soybean (17.0%), deoiled rice bran (56.5%), molasses (4.0%), di-calcium phosphate and salt (1.0% each) and mineral and vitamin mixture (0.5% each) supplements at 3.5% of body weight to meet NRC (1981) requirements for protein, energy, macro minerals and micro minerals, excluding Cu. The basal diet contained 5.7 mg Cu/kg, 122.5 mg Fe/kg, 110 mg Zn/kg, 0.26 mg Mo/kg and 0.32% S. $CuSO_4$ or Cu-P was added to the basal diet at the rate of 10, 20 and 30 mg/kg. Kids were housed in a well ventilated shed with facilities for individual feeding in aluminum plated metabolic cages. Blood samples were collected from the jugular vein on d 0, 30, 60 and 90 to determine hemoglobin (Hb), packed cell volume (PCV), total erythrocyte count (TEC), total leukocyte count (TLC) and serum enzymes (alkaline phosphatase, alanine transferase and aspertate transferase). A metabolism trial of 6 days duration was conducted after 90 days of experimental feeding. Statistical analysis revealed that source and level of Cu supplementation improved live weight gain (p<0.04) and average daily gain (p<0.01). No significant contribution of source and level of Cu to alter serum serum enzymes was evident. Goats fed Cu-P tended to have higher Hb, PCV and TEC than with $CuSO_4$ supplementation. Cu-P increased digestibility of ether extract (EE, p<0.02) and crude fiber (p<0.05) and showed an increasing trend (p<0.09) for digested crude protein (CP) and crude fiber (CF). Supplemental dose of Cu linearly improved (p<0.02) digestibilities of dry matter (DM), organic matter (OM), EE and nitrogen free extract (NFE). Though the absorption of nitrogen (N) was not affected (p>0.10) by both source and dose of Cu, N retention was affected (p<0.04) and there was a significant $Source{\times}Dose$ interaction (p<0.05). Final body weight (BW) was not influenced (p>0.10) by the source of Cu but increasing dose of Cu increased (p<0.04) the BW of kids. TDN intake (g/kg $W^{0.75}$) was higher (p<0.05) with the increased dose of Cu and there was a significant $Source{\times}Dose$ interaction. It was concluded that supplementation of Cu from different sources and varying dose level in a concentrate based diet may improve performance, nutrient utilization and plane of nutrition in castrated Black Bengal kids. The effects on performance and nutrient utilization are more pronounced with Cu-P than $CuSO_4$ supplementation. Higher dose of Cu showed better result than lower dose.
Imik, H.;Hayirli, A.;Turgut, L.;Lacin, E.;Celebi, S.;Koc, F.;Yildiz, L.
Asian-Australasian Journal of Animal Sciences
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v.19
no.4
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pp.573-581
/
2006
This experiment was conducted to determine the effects of supplemental methionine, lysine, choline, and sulfur on laying performance, metabolic parameters, and egg quality of hens fed diets containing sorghum (Sorghum vulgare) during the peak laying period. Lohman layers (n = 144), 30-wk of age as 6 replicate cages of 4 hens, were allocated randomly to receive basal diets containing either 22% corn (B) or 22% sorghum (BS) and diets BS plus 0.57% methionine, 0.66% lysine, 0.47% choline, or 0.05% sulfur for 98 d. Feed intake (FI) and egg production (EP) were recorded daily, egg weight (EW) was measured bi-weekly, and body weight (BW) was measured monthly. A sample of 12 eggs from each experimental group was collected every month to evaluate egg quality. At the end of the experiment, blood samples were collected for metabolite concentrations. Data were analyzed using one-way ANOVA as repeated measures and significant differences between the experimental groups were assessed using Duncan's Multiple Range test. Partial replacement of corn with sorghum in the basal diet did not affect BW, EP, and FCR but increased FI by 5.7% and EW by 2.4%. The effects of additives on laying performance were variable. Except for serum total protein (STP) concentration, other metabolic parameters were not affected by partial replacement of corn with sorghum in the basal diet. Hens fed diet BS had lower SPT concentration than hens fed diet B. Except for methionine supplementation, other supplements ameliorated depression in STP concentration. The additives did not affect other metabolic parameters. Egg quality responses to the experimental diets were also variable. Partial replacement of corn with sorghum in the basal diet did not affect eggshell characteristics (both thickness and stiffness), whereas it had variable effects on inner egg quality parameters (increased yolk index, depressed yolk color, and unaltered albumen index and Haugh unit). In conclusion, laying hen diets could include low-tannin sorghum (0.26%) up to 22% without necessitating extra supplements to overcome compromised performance.
The interactive effect of dietary fat supplementation and milk yield level on dairy cows performance under heat stress has not been thoroughly investigated. The purpose of this study was to evaluate the effect of production level, the source of fat supplements and their interaction on dairy cows performance under heat stress. In this study, 64 Holstein multiparous cows were divided into 2 groups and received one of two rations having either calcium salts of fatty acids (Ca-FA) or high-palmitic acid (PA) supplements (2.8% of DM; dry matter). After completing the experiment and based on maturity-equivalent milk, cows were divided into two groups of high-yielding (14,633 kg) and medium-yielding (11,616 kg). Average temperature humidity index (THI) was 71 during the trial period. Apparent digestibility of dry matter (p = 0.04), organic matter (p = 0.05), and neutral detergent fiber (NDF; p = 0.04) for cows fed Ca-FA were greater than cows fed PA. The milk fat content in high-producing cows was 0.3% greater than medium-producing cows (p = 0.03). The milk protein content in cows fed Ca-FA was greater than cows fed PA (p < 0.01). High-producing cows had greater serum cholesterol (p = 0.02) than medium-producing cows. The cows fed PA tended to have a greater BUN than cows fed Ca-FA (p = 0.06). Alanine aminotransferase and aspartate aminotransferase tended to be increased by PA, which indicates that cows in PA treatment may have experienced more adverse effect on the liver function than cows on Ca-FA. Therefore, under heat stress and in 90 d trial, milk production level does not affect the cows' response to PA or Ca-FA. Although cows fed Ca-FA received lower energy than those fed PA, they compensated for this shortage likely with increasing the digestibility and produced a similar amount of milk.
Journal of the Korean Society of Food Science and Nutrition
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v.29
no.4
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pp.676-682
/
2000
The effect of dandelion leaf extracts on lipid metabolism was investigated in high cholesterol-fed rats. Four groups of rats were given a high cholesterol diet containing 10g cholesterol/kg and 2.5 g sodium cholate/kg for 6 weeks. The control group received without dandelion leaf extracts and the other three groups received with one of dandelion leaf extracts (water, ethyl acetate, ether), respectively. Weight gain and feed intake were significantly higher in water group than control group. Serum triglyceride, total cholesterol, cholesteryl ester, chylomicron and VLDL-cholesterol concentratins were lower, whereas HDL-cholesterol and phospholipid concentrations were significantly higher in dandelion leaf extract supplemented-groups than control group. Dandelion extract increased HDL-C/total-C ratio and lowered atherogenic index. Hepatic triglyceride, total cholesterol, free cholesterol and cholesteryl ester concentrations lowered in dandelion leaf extract groups compared to control group. Especially, hepatic triglyceride and free cholesterol levels were lower in ethyl acetate extract group than in water and ether extract groups. Dandelion leaf extract supplements did not affect hepatic phospholipid cencentration. Hepatic HMG-CoA reductase activity was significantly lower in water extract group than the others. ACAT activity was significantly decreased by dandelion extract supplements.
This study was conducted to investigate the effects of several herbal extracts (obtusifolia, cinnamon, chinese pepper, licorice root) on the characteristics of rumen fermentation in vitro. Soybean meal was used as a substrate for fermentation in vitro. Herbal extracts were supplemented to media by 10% of the substrate. The substrates supplemented to Dehority artificial media with herbal extracts were fermented in 30ml serum bottles for 0, 3, 6, 9, 12 and 24 hr at $39^{\circ}C$. Cumulative gas production was significantly (p<0.05) greater in the herbal extract supplements than in the control, in the order of licorice root, chinese pepper, cinnamon and obtusifolia. Methane proportions of the herbal extracts were significantly (p<0.05) higher than that of the control. Licorice root extract supplementation resulted in the lowest methane proportion at 3 hr fermentation. Proportion of hydrogen was significantly (p<0.05) higher in the herbal extract supplements than in the control at 12 hr fermentation. Compared to the control, ammonia concentration in the licorice root was significantly higher at 3 hr fermentation, but lower at 12 hr fermentation (p<0.05). Based on these results, supplementation of the herbal extracts used in this experiment resulted in increased cumulative gas production and stimulating methane production in vitro rumen fermentation.
This study was conducted to evaluate the effects of indigenous herbal supplements on growth, blood metabolites and carcass characteristics in the late fattening period of Hanwoo steers. In a 6 month feeding trial, thirty Hanwoo steers ($647{\pm}32$ kg) were allotted to one of 5 treatment groups, control (basal diet contained lasalocid), licorice, clove, turmeric and silymarin, with six steers per pen. All groups received ad libitum concentrate and 1 kg rice straw/animal/d throughout the feeding trial. Blood samples were collected at the beginning, middle, and the end of the experiment and the steers were slaughtered at the end. Blood glucose, triglyceride, total protein, and albumin concentrations were higher in the turmeric treatment compared with other treatments. Blood urea nitrogen and creatinine concentrations were highest (p<0.003 and p = 0.071, respectively) in steers treated with silymarin. Alanine aminotransferase activity was lower (p<0.06) for licorice and silymarin compared with the control group. There were no alterations in serum aspartate aminotransferase and gamma glutamyltransferase activities as a consequence of herb treatments (p = 0.203 and 0.135, respectively). Final body weight, body weight gain, average dairy gain and dry matter intake were not significantly different among treatments. Yield grade, marbling score and quality grade were higher for silymarin group than those of the control group (p<0.05). Therefore, the results suggest that silymarin can be used an effective dietary supplement as an alternative to antibiotic feed additive and a productivity enhancer, providing safe and more consumer acceptable alternative to synthetic compounds during the late fattening period of steers.
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