• Korean Journal of Poultry Science
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• v.45 no.3
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• pp.175-182
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• 2018

The carcass and meat quality of new native chicken strains (A, C, and D) being developed in the Golden Seed Project for Samgyetang were compared with a commercial native chicken (Hanhyup No. 3, H) and Baeksemi (white semi broiler, W) strains. In total, 250 male chicks were raised under the same feeding and raising conditions for 5 weeks. After slaughter, the carcass weight and percentage yield of parts from each strain were measured and the physicochemical quality traits (general composition, color values, fatty acid composition, and sensory evaluation) of breast muscles were comparatively analyzed. The carcass weight (875.10 g) of the W strain was significantly heavier than that of the other native chicken strains, while that of A strain (537.54 g) was the lowest. The percentage yield of breast meat was also higher in the W strain than in the other strains. The fat content of W strain was higher than that of the other native chicken strains. The new native chicken strains (A, C, D) had higher contents of linoleic acid (C18:2) than the H strain. The A and D strains especially showed relatively high content of arachidonic acid (C20:4), a characteristic fatty acid in native chicken meats. On the other hand, the fatty acid composition of C strain was similar to that of the W strain. This study provides important information on specific quality characteristics than can be used to select new native chicken lines for breeding program.

• Journal of The Korean Society of Grassland and Forage Science
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• v.40 no.3
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• pp.161-166
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• 2020

Barley is an important cereal gain which is traditionally used in some nations of Asia and North Africa, and there has been growing interest in using barley as an ingredient in food due to their nutritional value and high content of phyto-constituents. However, no study report on comparative feed value between sprouted barley, cornflake and alfalfa hay. Therefore, in this study we aimed to evaluate the chemical composition, amino acid profile and mineral content of 6 day sprouted barley fodder (SBF) compared with cornflake and alfalfa hay using by AOAC method, as an alternative feed ingredient. Results showed that SBF had higher content of crude protein, acid detergent insoluble crude proteins and neutral detergent insoluble crude protein than alfalfa hay and cornflake; cornflake had higher crude fiber, neutral detergent fiber content than SBF and alfalfa hay; alfalfa hay had higher crude fiber, crude ash, acid detergent fiber, neutral detergent fiber and lignin level than SBF and cornflake. Also, significant differences were found on amino acid content among them (p<0.01). The most abundant amino acid in SBF was glutamate (123 g/kg DM), which is higher than in alfalfa hay (1.27%) or cornflake (1.58%). However, methionine (1.33%) and cysteine (1.53%) were the least abundant amino acids in SBF compared with cornflake or alfalfa hay. Furthermore, our study results exhibited that SBE comprise a good sources of minerals including ferrous (90.01 mg/kg) followed by zinc (20.50 mg/kg), magnesium (0.20 mg/kg) and sodium (0.03 mg/kg) as compared to cornflake and alfalfa hay. The present research findings, confirmed that the nutritional values of SBF are comparable to those of cornflake and alfalfa hay. Hence, SBF can be a better alternative feed ingredient for cornflake or alfalfa hay. However, feeding trials will be required to determine acceptability of SBF for ruminant production.

• Asian-Australasian Journal of Animal Sciences
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• v.2 no.2
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• pp.115-121
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• 1989

A comparative slaughter feeding experiment with steer calves weighing 280 kg and a concurrent digestion trial with wether lambs was conducted to study the energy value of rice straw as influenced by ammonia treatment and mixing with alfalfa hay. Steers were ad libitum fed one of nine completely mixed experimental diets: basal (high concentrate); 25 or 50% of untreated rice straw (URS) or ammoniated (plastic covered bales, 4.6% $NH_3$ by weight) rice straw (ARS) proportionately replacing part of the basal; a 50:50 % mixture of URS or ARS and alfalfa replacing a proportion of the basal at 25 and 50%. Digestibility of the nine complete diets (pelleted to prevent sorting) was determined with four ad libitum fed lambs. Ammoniation increased crude protein level (from 3.6 to 10.8%) and in vitro dry matter digestibility of the rice straw by 15%. The improvement in DE, NEm and NEg by ammoniation of rice straw was 20, 52 and 117%, respectively. Ammoniation of rice straw fed as 50% of the diet improved gains over the diet containing 50% URS, but no significant influence on animal performance was observed when rice straw was fed at the 25% level. Each 10% addition of URS to basal diet decreased empty body gain of steers by 116 gram per day compared with a decrease of 70 gram per day when rice straw had been ammoniated. There was no beneficial effect of ammoniation when the roughage component of the diet was a 50:50 mixture of rice straw and alfalfa. Ammoniation of straw and inclusion of alfalfa generally increased the concentration of total volatile fatty acids in rumen fluid. Ammoniation resulted in reduced concentrations of acetic and propionic acid, but increased concentration of butyric acid. Digestibility of URS was improved by mixing with alfalfa. However, alfalfa hay did not influence digestibility of ARS. Diets in which ARS replaced the basal mixture at 25 and 50% had higher NEm and NEg values than comparable URS diets. The same pattern was observed in the straw: alfalfa mixtures, but differences between URS and ARS were significant only for the 50% roughage diets.

• Journal of the Korean Society of Food Science and Nutrition
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• v.12 no.3
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• pp.273-283
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• 1983

In order to investigate the effect of the combined dietary animal and vegetable proteins on growing female and male rats and mice. 25 female and 25 male rats of 4 weeks old weighing approximately 43-65g and 47-60g, respectively, were subjected to feeding trials for 4 weeks and then subsequently to metabolic trials for 10 days. In case of mice, 25 female and 25 male mice of 4 weeks old weighing approximately 12-17g and 12-16g, respectively, were equally treated. The dietary energy level was set as 3600 kcal ME/kg, and protein and fat provided respectively 12 and 5% of the dietary energy. The rest 83% of the energy level was supplied with appropriate amounts of starch and glucose. The following results were obtained. The body weight gain of female and male rats were increased as the combined dietary animal protein level increased. Whereas that of male mice was the highest for the diet E(Ap 10+Vp 90). Food efficiencies both of female and male rats were improved as combined dietary of animal protein increased. Male rats were superior to that of female. In the mice, the food efficiency value of male mice was superior to that of female. And the values of the male showed the same fashion as that in the growth rate, although it was not for the female. Protein efficiencies, both of female and male rats, were improved as combined dietary of animal protein level increased. That of male mice was in accord with the body weight gain and food efficiencies. But that of female mice was not accordant. Nitrogen retention of the experimental diets in the same protein level was in proportion to nitrogen intake. That of male mice was improved as animal protein level increased, but, that of female mice was not. Body protein utilizability was found to be superior in mice to rats. Blood serum protein level was not found to be affected by the experimental diets in the same protein level. The best combination ratio of animal and vegetable protein seems to be variable depending on the sex and species of animals, and the best diets for female and male rats and female and male mice were found to be experimental diet A(Ap 10+Vp 90) or diet B(Ap 75+Vp 25), diet C(Ap 50+Vp 50), and diet E(Ap 10+Vp 90), respectively. From the above-mentioned results that there was no difference in growth rate of body weight gain from the weanling period to puberty, and that the protein requirements of rats and mice were different from each other.