Tài liệu DAIRY GOATS: SUSTAINABLE PRODUCTION potx

... for a sustainable dairy goat business. Our thanks to the author/farmer, Debbie Taylor, for sharing her story. / /DAIRY GOATS: SUSTAINABLE PRODUCTIONPAGE 32 The electronic version of Dairy Goats: ... 2001. Ask Judy. Dairy Goat Journal. Vol. 79, No. 1. p. 17. Levesque, P. 2004. Teat Sanitation: What are your options? Hoard’s Dairyman. January 10. p. 9. / /DAIRY GOATS:...

Ngày tải lên: 22/02/2014, 05:20

... Lake Artemia. 4.4. Tank production and use of ongrown Artemia 4.4.1. Nutritional properties of ongrown Artemia 4.4.2. Tank production 4.4.2.1. Advantages of tank production and tank produced ... techniques 4.4.2.10. Production figures and production costs 4.4.3. Literature of interest 4.4.4. Worksheets Worksheet 4.4.1: Feeding strategy for intensive Artemia culture. 4.5. Po...

Ngày tải lên: 15/12/2013, 00:15

... cotton-plugged vials. 2.3.10. Algal production cost Estimates of the algal production cost range from US$ 4 to 300 per kg dry biomass (Table 2.11.). Algal production in outdoor ponds is relatively ... able to attain production costs below US$ 100 per kg of dry weight (Fig. 2.13.). Table 2.11. Production cost of marine micro-algae (modified from Coutteau and Sorgeloos, 1992). P...

Ngày tải lên: 15/12/2013, 00:15

... 3.7. Production and use of resting eggs For the mass rearing of rotifers as larval food the amictic way of reproduction (see 3.3.) should be favored. However, when the interest is in production ... Mass production on algae 3.5.3.4. Mass production on algae and yeast 3.5.3.5. Mass culture on yeast 3.5.3.6. Mass culture on formulated diets 3.5.3.7. High density rearing Inte...

Ngày tải lên: 15/12/2013, 00:15

... controlled sources for production in the San Francisco Bay region. Here it was found that brine shrimp and their cysts could be produced as a by- product of solar saltworks. Since salt production entails ... D.S., Segreti, W.O. and Purser, S.M. 1984. Partitioning genetic and environmental components of reproduction and lifespan in Artemia. Ecology, 65(3): 949-960. Lavens, P. and Sorge...

Ngày tải lên: 15/12/2013, 00:15

... temperatures, high salinities) is ensured by the production of dormant embryos. Artemia females can indeed easily switch from live nauplii production (ovoviviparity) to cyst formation (oviparity) ... buffer capacities can also become essential when high densities of cysts are hatched (= high CO 2 production) . storage temperature storage time +4°C -25°C -80°C 0 days 7 7 7 2 we...

Ngày tải lên: 15/12/2013, 00:15

... and reduced variability in fish hatchery production. The latter is particularly important since it was the missing link in the development of commercial production. Furthermore, the quality of ... · Day 4 - 9:30 harvest 4.4. Tank production and use of ongrown Artemia 4.4.1. Nutritional properties of ongrown Artemia 4.4.2. Tank production 4.4.3. Literature of interest...

Ngày tải lên: 15/12/2013, 00:15

... leaching of body fluids (See also 4.5.7.1). 4.4.2.10. Production figures and production costs Figure 4.4.14. provides a summary of average production data expressed as Artemia survival and length, ... infections 4.4.2.9. Harvesting and processing techniques 4.4.2.10. Production figures and production costs 4.4.2.1. Advantages of tank production and tank produced biomass...

Ngày tải lên: 15/12/2013, 00:15

... nauplii are to be preferred unless production of biomass is the main objective. In the latter case selecting a fast growing strain having a dominant ovoviviparous reproduction is recommended. If ... course sample volume depends both on animal abundance and animal size. As both cyst production and biomass production mainly depend on the number of large animals, volume usually reflect...

Ngày tải lên: 15/12/2013, 00:15

... high negligible Operational cost very high very low Production very high low Survival rate low moderate high Growth rate moderate high Production quality (swimbladder/skeletal deformations) poor ... resulting in higher production outputs per batch of larvae; e.g. for turbot malpigmentation is less than 0.1%. A well-managed semi-extensive mesocosm in a 60 m³ enables a production...

Ngày tải lên: 15/12/2013, 00:15