Forage Productivity and Animal Performance on Different Grass/Legume Pastures for Grazing Management

A grazing trial was carried out to determine the effects of different grass/legume pastures on forage productivity, nutritive value, and animal performance. The pasture mixtures were mainly orchardgrass (OG)+ladino clover(T1), mainly OG+alfalfa(T2), mainly perennial ryegrass+alfalfa(T3), and grasses alone (mainly OG, T4). The pastures were rotationally grazed 7 times with growing heifers in 1991 and 1992. The proportion rate of ladino clover in T1 mixtures rapidly increased from 21% up 54 to 68% during the grazing season. However, the rate of alfalfa in T2 and T3 ranged between 12% and 23%. The annual dry matter yield ranged from 9.19 in T4 to 9.61MT/ha in T3. The contents of crude protein and calcium of forages were highest in T1(23.2%, 0.68%), lowest in T4(18.5%, 0.13%) The liveweight gain per ha was greatest in T1(1,073kg), lower in T2(810kg) and T3(784kg), and lowest in T4(643kg). In conclusion, pasture mixtures which included legume(clover) can increase forage nutritive value and animal performance

Effect of Different Seeding Rate on Seed Production of the Rye Variety “Gogu” in Korea

The rye (Secale cereale L.) has been used as an excellent green manure crop and good forage crop in Korea. The rye is usually recommended as a winter crop for forage and green manure after either maize or rice in Korea (Heo et al., 2009). But most of its seeds are being imported from foreign countries because the seed productions have difficulty with latematuring and the heavy raining season in the ripening stage in Korea. Therefore, a new rye variety “Gogu” with an earlymaturing and high performance was bred by National Institute of Crop Science (NICS), Suwon, Korea in 2004. This study was carried out to determine the effect of seeding rate on the seed yield and agronomic characteristics of the rye variety “Gogu” in the north eastern area, Youngwol, Korea

Determination of Cutting Date and Interval on Native Grass Management of Agricultural Waterways in South Korea

Agricultural waterways provide a buffer zone between crop fields and adjacent rivers or streams. Waterways are important resource for agriculture water management, water quality and biodiversity conservation. The total linear distance of waterway in Korea is about 180,000 km, and about 40% are concrete and about 60% are grassed waterways. At present, the percentage of concrete waterways is increasing because of their water management efficiency. Some argue that continued expansion of concrete waterways is not sustainable because it leads to potential-degradation of the earth\u27s environment. This concern has led to renewed efforts to use grassed waterways as an alternative to concrete. In addition, grassed waterways enhance the environment-friendly image of agriculture that Korea farmers want to promote. The objective of this experiment was to determine the effect of cutting date and interval of native grasses for water management efficiency of agricultural waterway

Nasal Deformity Due to Tuberculous Chondritis

Tuberculosis (TB) is a common disease worldwide. However, nasal TB is quite rare, and the diagnosis of nasal TB requires a high index of suspicion. The most common symptoms of this unusual presentation are nasal obstruction and nasal discharge. We present a case of nasal TB with involvement of the hard palate presenting with a chronically progressive nasal deformity and ulceration of the hard palate. A biopsy confirmed the diagnosis, and medication for TB was started and the lesions resolved. When a patient presents with chronic ulcerative lesions that do not respond to antibiotic treatment, TB should be included in the differential diagnosis. Biopsy of the lesion can aid in the confirmation of the diagnosis

A Case of Granular Cell Tumor of the Trachea

A 20-year-old man presented to our outpatient clinic with hemoptysis, cough, and pleuritic chest pain. His chest radiograph and pulmonary function tests (PFT) were normal. A bronchoscopy showed a small yellowish patch with a regular surface. A direct bronchoscopic biopsy was performed. The pathologic findings showed a benign granular cell tumor. The respiratory symptoms resolved after biopsying the tumor. On follow.up, there were no signs of recurrence of the granular cell tumor after a period of 24 months