Penaeid Markets and Economics

Shang, Yung C.

doi:10.1016/b978-0-444-88606-4.50033-3

Cited by 7 publications

(8 citation statements)

References 3 publications

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“…According to Shang (1992), there are three factors that affect shrimp culture profitability: production level, production cost and farm price. Thus, farmers must consider the market situation if feasibility of the activity is to be achieved.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of pacific white shrimpLitopenaeus vannameiculture in southern Brazil: effects of stocking density and a single or a double CROP management strategy in earthen ponds

Krummenauer

Cavalli

Ballester

et al. 2010

Aquaculture Research

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Marine shrimp culture at southern Brazil is restricted to the warmer season (November to April). Therefore, farmers must consider culture strategies and competition with shrimp landings from artisanal ¢shery. The ¢shing season starts every 1 February; in order to obtain higher prices, farmers may consider shrimp culture in two crops, with a ¢rst harvest before the start of the ¢shing season, and a second harvest after the end of the landings. The present study evaluated the performance and feasibility of Litopenaeus vannamei reared at10, 25 and 40 shrimp m À 2 either in two short consecutive culture cycles or one longer cycle (LC). The experimental design consisted of two sets of nine pens installed in a 3.8 ha earthen pond. In one set of pens, shrimp were harvested after 75 days and pens were restocked for another 75-day-long rearing period. In the second set of pens, shrimp were cultured for 150 days. Shrimp survival and ¢nal weight ranged from 79% to 91% and 6.67 to 14.53 g respectively. Feasibility analysis pointed towards culture at higher densities (25 and 40 shrimp m À 2 ) in a LC as productivity (22744 227 kg ha À 1 ) and shrimp ¢nal weight (13.05^13.21g) resulted in higher pro¢tability (US$7761^12379).

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Section: Introductionmentioning

confidence: 99%

Feasibility of pacific white shrimpLitopenaeus vannameiculture in southern Brazil: effects of stocking density and a single or a double CROP management strategy in earthen ponds

Krummenauer

Cavalli

Ballester

et al. 2010

Aquaculture Research

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“…In intensive shrimp culture, as in other forms of intensive aquaculture, feed is a major component of production cost (Clifford 1985;Chen 1990;Shang 1992;Rosenberry 1993). Least-cost feed formulations for P. setiferus could reduce production cost by reducing feed cost.…”

Section: Introductionmentioning

confidence: 99%

Apparent digestibility of selected ingredients in diets for white shrimp Penaeus setiferus L.

Brunson

Romaire

Reigh

1997

Aquaculture Nutrition

104

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A study was conducted to determine apparent digestibility coefficients for dry matter (ADMD), crude protein (ACPD) and gross energy (AED) of selected ingredients in diets for juvenile Penaeus setiferus. Ingredients tested were corn grain, cottonseed meal, crab meal, grain sorghum, meat and bone meal, menhaden fish meal, rice bran, rice grain, shrimp meal, soybean meal, squid liver powder, wheat flour, wheat gluten, wheat middlings and wheat shorts. ADMD coefficients of test ingredients ranged from 22% to 100% and appeared to be related to the fibre, ash and starch content of the ingredient. ACPD coefficients ranged from 58% to 100%. Plant protein supplements (soybean meal and cottonseed meal) were utilized as efficiently as, or better than, animal protein supplements (squid liver powder, menhaden fish meal, meat and bone meal, shrimp meal and crab meal). ACPD coefficients for meat and bone meal, shrimp meal and crab meal (58-59%) were significantly lower than those for menhaden fish meal (76%) and squid liver powder (82%). AED coefficients (44-100%) varied significantly among plant products of similar proximate composition. Corn grain and wheat flour were better utilized by P. setiferus than other high-starch energy supplements. Wheat gluten exhibited the highest ADMD, ACPD and AED coefficients of all ingredients tested.

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“…However, chemical inputs and bio-products were 12% higher than reported by FAO (2005), where 6% accounted for the total production cost. The NI/TC ratio averaged in 0.9 and is within the range of 0.8-0.9 obtained for Thailand (Shang 1992).…”

Section: Discussionmentioning

confidence: 71%

Production and economic efficiencies of intensive black tiger prawn (Penaeus monodon) culture during different cropping seasons in the Mekong delta, Vietnam

et al. 2010

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Production management of intensive prawn farming strongly differs between dry and wet season in terms of availability and quality of prawn seeds and water quality. Secondary data implied that prawn seed batches from the market had a total pathogen infection rate of 53%, predominantly caused by 37% white spot syndrome virus (WSSV), 19% monodon baculovirus (MBV) and 4% yellow head virus (YHV). Pathogen-free seed batches averaged to 52% during the dry season compared to the wet season (42%). Survey revealed average stocking density of 17 PL m -2 with a survival rate of 55%, a crop yield of 2,470 kg ha -1 crop -1 and a net income of 6,768 USD ha -1 crop -1 . Average production cost amounted to 3.4 USD kg -1 , and feed cost accounted for 58% of the production cost. Technical efficiency with respect to prawn yield and survival rate was higher during the dry season than the wet season. The probability of yield loss was 15.6 times higher in the wet than in the dry season. A positive net income can be generated for farms operating in the dry season using new ponds and performing pathogen laboratory tests on prawn seeds before stocking.

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Penaeid Markets and Economics

Cited by 7 publications

References 3 publications

Feasibility of pacific white shrimpLitopenaeus vannameiculture in southern Brazil: effects of stocking density and a single or a double CROP management strategy in earthen ponds

Feasibility of pacific white shrimpLitopenaeus vannameiculture in southern Brazil: effects of stocking density and a single or a double CROP management strategy in earthen ponds

Apparent digestibility of selected ingredients in diets for white shrimp Penaeus setiferus L.

Production and economic efficiencies of intensive black tiger prawn (Penaeus monodon) culture during different cropping seasons in the Mekong delta, Vietnam

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