Tổng hợp tài liệu, ebook Sinh Học tham khảo.
SUMMARY In this study, we accessed and estimated morphological characteristics of Vietnamese native wild boars (Sus scrofa) in Central Higlands. The Vietnamese native wild boars had compact body shape, compact abdorminal, long tail. The height of mature male wild boar was about 65-75 cm. The Vietnamese native wild boars had small head, long snou...
6 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 519 | Lượt tải: 0
SUMMARY The paper presented the initial results of total coliforms (TC) and fecal coliform (FC) in the Red River system, the section from Yen Bai city to Hanoi city in the period from January to December 2013. The results showed that TC and FC densities varied in a high range: TC from 23 to 13,000 MPN/100 ml, and FC from 0 to 1,600 MPN/100 ml. A...
7 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 543 | Lượt tải: 0
SUMMARY Hippeastrum is one of the most beautiful flowers and widely growed in Vietnam. In some recent years, number of people loving Hippeastrum is increasing. That is the result why Hippeastrum breeding is a necessary task today. However, the identification and early detection of hybrid Hippeastrum in Vietnam is difficult work. Therefore, the app...
7 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 474 | Lượt tải: 0
SUMMARY In aquaculture, Thalassiosira is used to feed to shrimp and shellfish larvae in hatcheries. It is considered preferable for this purpose to the other commercially available microalgae, Chaetoceros and Tetraselmis, because of its larger size which means it can continue to be used at more advanced larval stages. Salinity is one of the envi...
5 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 595 | Lượt tải: 0
SUMMARY In this study, 17 SSR markers were used to investigate genetic variation within and between four populations of P. krempfii in highland of Vietnam. There are 8/17 SSR markers revealed polymorphic. Among 42 putative genetic alleles were amplified, of which 32 were polymorphic (accounting for 76.19%). The genetic diversity were highest in ...
10 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 531 | Lượt tải: 0
SUMMARY Light intensity and photoperiod are two important factors to the growth and secondary metabolite accumulation of in vitro plants, especially under photoautotrophic micropropagation. Internodal segments carrying 1 leaf of in vitro Phyllanthus amarus plants were used as explants. Four explants were put on MS medium with half strength macro...
7 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 518 | Lượt tải: 0
SUMMARY It is the first time, the content of nutrients (protein, lipid, carbohydrate, ascorbic acid and mineral); anti-nutritional factors (total phenol, tannin); and metabolizable energy in plant parts which the Tonkin Snub-Nosed Monkey (TSNM) consumes and doesn’t consume have been analyzed and compared. The study results show that the food cho...
10 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 443 | Lượt tải: 0
SUMMARY Study area consists of 2 protected areas in Ha Giang Province with poor surveys on biodiversity values: Du Gia Nature Reserve (11,795 ha) with domination of lowland, montane tropical evergreen forest and small area of limestone evergreen forest. Khau Ca species habitat Tonkin snub-nosed monkey conservation area (2,024 ha) is predominated...
10 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 503 | Lượt tải: 0
SUMMARY A study of Lepidopteran diversity was carried out from 5 to 25 September 2012, at 6 transects of different habitats at Krong Trai Nature Reserve, Son Hoa District of Phu Yen Province. The transects that are representative for almost all habitats of the Reserve: secondary forest near the natural forest, poor evergreen secondary forest, se...
9 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 553 | Lượt tải: 0
SUMMARY Based on 924 collected fish specimens of ten field surveys from 9 locations in the Red River valley within the territory of the Thai Binh and Nam Dinh provinces during December 2010 to August 2012, the total of 193 species of fish species belonging to 131 genera, 53 families and 13 orders have been recorded. There are 130 species, 61 gen...
19 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 514 | Lượt tải: 0