최근 무역환경 변화에 따라 경쟁력이 열악한 국내 농산물 시장은 혼란이 가중되고 있으며, 시장이 세분화되고 고객의 욕구가 다양해지며 농산물 제품도 품질, 기능, 가격 등의 경쟁력만으로는 더 이상 시장에서 경쟁력을 확보할 수 없다. 급속도로 변화하는 사회 환경과 시장 변화에서 소비자의 구매 욕구를 충족시키고 기존 농산물과 차별화된 독창성을 부각시키기 위해 농산물 마케팅이 중요 과제로 연구되고 있다. 또한 농업 마케팅 분야에서 포장디자인이 소비자의 구매 욕구를 유발시키는 중요한 요소로 부각되며 제품 경쟁력을 확보하는데 필수적이라는 인식이 광범위하게 확산되고 있다. 본 연구에서는 농업 생산물 중계란 포장디자인 개발을 중심으로 소비자가 기억할 수 있는 브랜드네이밍, 구매 욕구를 유발시킬 수 있는 포장디자인 콘셉트를 제시하고자 한다. 특히 온라인 판매용으로 개발되는 계란 포장디자인은 브랜드네이밍이 매우 중요하며 유통과정에서 제품의 운반, 보호를 위한 기능까지도 고려하여 하기 때문에 조형성, 기능성, 심미성, 합목적성으로 제작, 설계된 디자인 방안을 제언하고자 한다.

The egg development and early life history of Korean spotted sleeper, Odontobutis interrupta which is Korean endemic species from Sora-choen was investigated. The Korean spotted sleeper were caught at Sora-myeon, Yeosu-si, Jeollanamdo, from Korea at May in 2014. The fertilized eggs were 4.23 ± 0.05 mm in long diameter and had oil globules. Hatching time of the embryo began about 442 hr 14 min after fertilization under water temperature of 19.5oC. The newly hatched larvae were 4.27 ± 0.35 mm in total length and their anus were not yet opened. 3 days after hatching postlarvae was measured 6.20 ± 0.11 mm in total length. 10 days after hatching postlarvae was measured 6.69 ± 0.14 mm in total length.

Hyphessobrycon eques is a famous fish for ornamental fish market and aquarium. They are inhabit in regions of Amazon and Paraguay River basin. Serpae fishs were investigated 2–3 males are chased to female, and then males attempted to simulate the females abdomen. After fertilization, eggs were kept in incubators at 28oC. The fertilized eggs had adhesive and demesal characteristics and had a mean diameter of 0.92 ± 0.01 mm. Larvae hatched at 16 hrs post fertilization. The hatched larvae averaged 2.90 ± 0.16 mm in total length (LT). Complete yolk sac resorption and mouth opening occurred on the third day post hatching. At 45 days post hatching, the larvae were 12.5 ± 1.60 mm LT and had reached the juvenile stage.

In order to monitor the developmental features of embryos, larvae, and juveniles of Oryzias latipes (Temminck and Schlegel), Oryzias latipes was caught in river of Shinduck-dong, Yeosu-si, Jeollanam-do, on May 2011, and experiments were carried out in Ichthyology laboratory at Chonnam National University. The blastodisc step was the first level for natural spawning. The optic vesicle, Kupffer's vesicle, myotome began to appear 75 hours 57 minutes later. After blastodisc development, the pectoral fins were made at 143 hours 37 minutes and the tail was separated started at the same time. Hatching was observed at 167 hours 27 minutes after blastodisc. The total length of the hatched larvae was 4.95~5.10 mm (mean, 5.01 mm), the mouth and anus were opened. Larvae used yolk completely after 3 days after hatching. The total length larvae was 5.45~5.56 mm (mean, 5.52 mm) after 8 days after hatching, and appeared the stems for tail. The stems pectoral, anal fin were showed after 14 days and the stems dorsal, ventral fin were appeared after 19 days. For 35 days after hatching, the total length of larvae 13.95~15.30 mm (mean, 14.64 mm), and at this time, fins and body were transferred like the adult Oryzias latipes.

This study was investigated spawning behavior, structure of egg masses and egg development in Aplysia kurodai inhabiting the coastal waters of Jeju Island, Korea. The mating and courtship behavior of A. kurodai occurred in the form of unilateral copulating with chain formation. In chain copulation, only the first animal acted as a female; the second and succeeding animals acted as males (sperm donors) to the animals in front and as females to the animals behind. The fertilized eggs were packaged in capsules that are embedded in jelly to form a cylindrical string called an egg masses. The number of capsule per cm of the egg masses was 55 to 60 capsules and each capsule within the egg masses held 15 to 25 eggs. After spawning, the egg masses were bright yellow or orange in color. This egg masses color not changed until embryos developed into trochophore stage. Thereafter, as embryo developed from trochophore stage to veliger stage the egg masses color became brownish. The fertilized eggs were spherical, with a diameter of approximately 80±1 μm at spawning. At 5 to 6 days after spawning, the embryo developed into trochophore stage and began to rotate within the egg capsule. In the trochophore stage, the precursor of the velum, called the prototroch or prevelum, developed. At 10 days after spawning, the prevelum is transformed into the velum, and the trochophore developed into veliger stage. Between 10 to 15 days after spawning, the veligers broke out of the egg capsule, and hatched as free-swimming larvae.

The fertilized eggs of E. septemfasciatus are spherical and transparent with buoyancy at 790 to 890 μm (average 821.8±2.0 μm) in diameter with 170 to 230 μm oil globules (average 192.9±0.93 μm). Hatching began approximately 46 and 35 hours after fertilization at 22.0℃ and 25.0℃ water temperature, respectively. The average total length of newly hatched larvae was 1.75±0.03 mm. Most of the yolk and oil globules were absorbed within 3 to 4 days after hatching. The larvae reached 2.48 to 2.72 mm in total length, and their mouths and anuses opened at 3 to 4 days after hatching. In this time, the mouth diameters of the larvae were 0.209 to 0.238 mm. The larvae reached 3.24 to 4.15 mm in total length at 11 to 17 days after hatching, and began to metamorphose at the time the second dorsal and pelvic spines appeared and elongated. The abdominal cavity was densely lined with melanophores. The larvae reached 5.12 mm in total length at 24 days after hatching.

Amphiprion melanopus의 난발생과 자치어의 형태학적 발달에 대한 기초 조사와 함께, 먹이생물과 갑상선호르몬이 자치어의 성장과 체색에 미치는 영향을 조사하였다. 수정 후, 부화까지 총 168시간이 소요되었다. 갓 부화 자어의 크기는 평균 mm 으며, 대부분의 자어는 부화 후 경과일 수에 따라 체색 변화(변태)를 나타내었다; DAH(days afterhatching) 10: 체색 흑화, DAH 15~20: 3개의 흰 줄무늬 출현, DAH 30

고등어를 습식법으로 인공 수정한 난을 대상으로 난발생 및 자치어 발육과정을 관찰하였다. 수정란의 형태는 구형의 분리부성란으로 유구는 1개를 가지고 있었으며, 난경은 0.94～1.02 ㎜(평균 0.95±0.03 ㎜)였다. 부화에 소요된 시간은 수온 20±0.5℃에서 51시간이 소요되었다. 부화 직후 자어의 전장은 2.52～3.0 ㎜(평균 2.75±0.04 ㎜)로 난황을 달고 있었고, 입과 항문은 아직 열려 있지 않았으며, 근절은 28～31개였고, 눈에는 흑색소포 소포가 착색되어 있었다. 부화 후 2일째의 전기 자어는 3.12～3.63 ㎜(평균 3.39±0.05 ㎜)로 난황이 완전히 흡수되었다. 부화 18일째 후기 자어는 전장이 8.45～12.32 ㎜(평균 10.85±4.36 ㎜)로 꼬리말단이 굽어지기 시작하면서 가슴지느러미, 등지느러미, 꼬리지느러미의 줄기가 형성되었다. 부화 25일째에는 44.12～58.72 ㎜(평균 55.95±6.74 ㎜) 외부 형태가 성어와 같은 치어기에 도달하였다.

이 연구는 2004년 6월에 전북 김제시 만경면 심포 앞바다에서 채집된 전어를 전남대학교 어류학실험실로 운반하여 습식법으로 인공 수정한 난을 대상으로 난 발생 및 자치어 발육 과정을 관찰하였다. 전어의 산란기는 월이었고, 수정란은 구형의 분리 부성란으로 난경은 (평균, 1.21 mm)였다. 수온이 (평균 )에서 수정 후 35시간 53분에는 눈에 렌즈가 착색되었고, 심장이 분화되어 꼬리가 난황으로부터 완전히 분리되었으며, 배체 전반부에 흑색 소포가 나타났

이 연구는 실내 사육수조에서 자연산란 후 수정된 난을 대상으로 수온에 따른 난 발생속도와 부화율을 조사하였다. 부화에 이르기까지 각 수온조건에서 소요된 시간은 에서 상실기 이후 발생이 진행되지 않았고, 18, 21, 24, 에서 각각 70시간 30분, 44시간 10분, 29시간 10분 그리고 24시간 30분이 소요되었다. 부화율은 에서 0%였고, 18, 21, 24 그리고 에서 각각 , , 그리고 로 뚜렷한 차이 없이 에서 다소 높았고 21와 에서 비슷

In order to study the reproductive physiology of Sand ell(Hypoptichus dybowskii) catched at kangwon-do, Wooamjin Bay, spawning and egg development were investigated in April and May, 1996. The observed spawning period was from the middle of April to the end of May with the water temperature above C. Body size and colouration were distinguished between male and female. The type of testicular structure is lobular, and the ovary is a pair of sac-sahaped covering with a fibromuscula capsule and comprising a mature egg of average 86. The unfertilzed egg are demersal and adhesive, and their diameter were 1.65-1.95 mm. the colour of yolk is light yellow and contained a lot of tiny oil globules. The average spawned egg was 62 in sargasso weeds. Hatching was observed in 12 days after fertilization with the water temperature of 14 C. The average size of larva after hatching was 6.850.23mm in total length, and larva were containing yolk including globule.