Preliminary Study on the Timing of Weaning of Spotted Sand Bass, Paralabrax maculatofasciatus, Larvae with a Prepared Diet

Anguas-Vélez, Benjamín H.; Civera‐Cerecedo, Roberto; Contreras-Olguín, Mauricio; Rueda-Jasso, Rebeca Aneli; Guillaume, J.

doi:10.1300/j028v10n04_01

Cited by 10 publications

(7 citation statements)

References 24 publications

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“…Total survival rate of larvae weaned with the fish hydrosylate diet 22 d.a.h. was higher than that reported by Anguas‐Vélez et al (2000) for weaning of this species with a microparticulate diet at 25 and 30 d.a.h. (1.7 and 2.7%, respectively).…”

Section: Discussioncontrasting

confidence: 67%

“…Early weaning at 30 d after hatching (d.a.h.) was accomplished by providing a microparticulate compound diet; however, the diet used included vegetable ingredients that could reduce the palatability and hence feed ingestion, resulting in lower growth and survival than those obtained with live food (Anguas-Vélez et al 2000). More recent studies have found that the anatomy of the digestive tract of the larvae is complete at 15 and 20 d.a.h.…”

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confidence: 99%

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Effect of Microparticulate Diets on Growth and Survival of Spotted Sand Bass Larvae, Paralabrax maculatofasciatus, at Two Early Weaning Times

Civera‐Cerecedo

Álvarez-González

Garcia-Gomez³

et al. 2008

J World Aquaculture Soc

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Early weaning in spotted sand bass larvae, Paralabrax maculatofasciatus, was evaluated, testing a combination of two weaning times, 17 and 22 d after hatching (d.a.h.), and three different microparticulate diets. Protein in diets was mainly from sardine meal and from 15% squid meal, beef blood meal, or fish protein hydrolysate. Anatomical (standard length), histological (gut development), and biochemical (highly unsaturated fatty acids) parameters were measured in larvae, as well as survival and resistance to a stress test measured 40 d.a.h. For larvae weaned at 17 d.a.h., the best growth and survival were obtained with diets containing fish protein hydrolysates; for larvae weaned at 22 d.a.h., best results were obtained with squid meal and fish protein hydrolysate. Growth and survival were significantly lower when using beef blood meal in both weaning treatments. The best relative and total survival were for larvae weaned at 22 d.a.h. After the resistance test, 100% survival occurred in larvae fed on any microparticulate diet and either weaning treatment. No significant differences in arachidonic acid, eicosapentaenoic acid, or docosahexaenoic acid concentrations in fish fed on any diet occurred. Results suggest that weaning at 22 d.a.h. with diets containing fish protein hydrolysate or squid meal is preferred by this species.

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Section: Discussioncontrasting

confidence: 67%

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confidence: 99%

Effect of Microparticulate Diets on Growth and Survival of Spotted Sand Bass Larvae, Paralabrax maculatofasciatus, at Two Early Weaning Times

Civera‐Cerecedo

Álvarez-González

Garcia-Gomez³

et al. 2008

J World Aquaculture Soc

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“…Reproduction of this species may be induced almost year-round under controlled laboratory conditions. The possibility of using artificial feed for the larval stages has been tested by Aviles-Quevedo et al (1995) and Anguas-Vélez et al (2000), who recorded low success with a survival below 2.5%. However, better survival of 11% was obtained by Alvarez-González et al (2001) in larval culture.…”

Section: Introductionmentioning

confidence: 99%

Development of digestive enzyme activity in larvae of spotted sand bass Paralabrax maculatofasciatus. 1. Biochemical analysis

Álvarez-González

Moyano

Civera‐Cerecedo³

et al. 2008

Fish Physiol Biochem

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Spotted sand bass Paralabrax maculatofasciatus is a potential aquaculture species in Northwest Mexico. In the last few years it has been possible to close its life cycle and to develop larviculture technology at on pilot scale using live food, however survival values are low (11%) and improvements in growth and survival requires the study of the morpho-physiological development during the initial ontogeny. In this research digestive activity of several enzymes were evaluated in larvae, from hatching to 30 days after hatching (dah), and in live prey (rotifers and Artemia), by use of biochemical and electrophoretic techniques. This paper, is the first of two parts, and covers only the biochemical analysis. All digestive enzyme activities were detected from mouth opening; however the, maximum activities varied among different digestive enzymes. For alkaline protease and trypsin the maximum activities were detected from 12 to 18 dah. Acid protease activity was observed from day 12 onwards. The other digestive enzymes appear between days 4 and 18 after hatching, with marked fluctuations. These activities indicate the beginning of the juvenile stage and the maturation of the digestive system, in agreement with changes that occur during morpho-physiological development and food changes from rotifers to Artemia. All enzymatic activities were detected in rotifers and Artemia, and their contribution to enhancement the digestion capacity of the larvae appears to be low, but cannot be minimised. We concluded that the enzymatic equipment of P. maculatofasciatus larvae is similar to that of other marine fish species, that it becomes complete between days 12 and 18 after hatching, and that it is totally efficient up to 25 dah.

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“…An important step towards a profitable rearing programme for any marine teleost species is the early use of artificial feeds during larval culture. Despite recent advances reported in rearing spotted sand bass larvae (Civera, Ortíz, Dumas, Nolasco, Alvarez, Anguas, Peña, Rosales, Carrasco, García & Goytortúa 2004), attempts to successfully wean larvae resulted in high mortality and low growth rates compared with larvae fed with live prey (Anguas‐vélez, Civera‐Cerecedo, Contreras‐Holguín, Rueda‐Jasso & Guillaume 2000; Alvarez‐González 2003; Peña 2005). Inadequate artificial feed (Zambonino‐Infante & Cahu 1994) and the duration of weaning period (Hart & Purser 1995) are among the factors limiting the success of early weaning in cultured marine fish larvae.…”

Section: Introductionmentioning

confidence: 99%

Development and distribution of intestinal enzymatic activity inParalabrax maculatofasciatus(Steindachner, 1868) larvae fed with live prey

Peña¹,

Dumas²,

Rodrı́guez-Jaramillo³

2009

Aquaculture Research

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We describe the development and distribution of intestinal aminopeptidase M, dipeptidyl aminopeptidase IV, non-speci¢c esterase, alkaline phosphatase and acid phosphatase, using enzyme histochemistry techniques, in the spotted sand bass larvae (Paralabrax maculatofasciatus) under culture conditions. All digestive enzymes tested showed a positive reaction from ¢rst feeding (day 2) and throughout the study period (day 30). At ¢rst feeding, the main enzymatic activity was in the mucosa throughout the intestines. Later, enzymatic activity occurred in the liver, kidney and stomach. All enzymatic activities increased from days15 to 20, remaining constant until the end of the study. This enzymatic activity suggests the onset of maturation of the digestive tract. After day 20, a positive reaction was recorded in the pyloric caeca for all tested enzymatic activities. Our study con¢rms the digestive and absorptive functions in the intestines in spotted sand bass larvae from ¢rst feeding. It also brings new insight to establish an early weaning strategy during cultivation of spotted sand bass larvae.

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Preliminary Study on the Timing of Weaning of Spotted Sand Bass, Paralabrax maculatofasciatus, Larvae with a Prepared Diet

Cited by 10 publications

References 24 publications

Effect of Microparticulate Diets on Growth and Survival of Spotted Sand Bass Larvae, Paralabrax maculatofasciatus, at Two Early Weaning Times

Effect of Microparticulate Diets on Growth and Survival of Spotted Sand Bass Larvae, Paralabrax maculatofasciatus, at Two Early Weaning Times

Development of digestive enzyme activity in larvae of spotted sand bass Paralabrax maculatofasciatus. 1. Biochemical analysis

Development and distribution of intestinal enzymatic activity inParalabrax maculatofasciatus(Steindachner, 1868) larvae fed with live prey

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