Californian red worm biomass increase and its cobalt accumulation under different concentrations of the metal in nutrient medium

S. V. Merzlov, Y. O. Mashkin, G. V. Merzlova, A. V. Vovkohon

Abstract


Californian red worms hybrid biomass is a biologically valuable feed supplement for livestock, poultry and fish. The worm body contains a significant amount of protein, lipids, vitamins and minerals. The chemical composition of worms depends on the nutrient medium in which they were grown. Worms can accumulate minerals from the nutrient medium in the body which called forth conducting research on obtaining worms biomass enriched with Cobalt with the prospect of its further use in fish feeding.
It has been found out that the worms quantity and the mass increase depends on the content of Cobalt in the nutrient medium. Adding 20 mg / kg of Cobalt to the nutrient medium contributed to 38.0% and 40.4% increased amount of worms weighing 0.4-0.8 g respectively. The study reveals that the number of immature worms increased by 32.2%. Adding 40 mg / kg of Cobalt to the nutrient medium resulted in worms number and mass increased by 45.9 and 51.1% respectively. Adding 160 mg / kg of Cobalt resulted in 6.5-27.7% smaller amount of worms weighing 0.4-0.8 g as compared with the experimental groups. It has been found out that the number of small worms reduced by 24.0-50.7% compared with the experimental groups under adding 160 mg / kg of Cobalt. The weight reduced by 22.4% and amount of young worms compared with the control has been revealed.
We have established the pattern that as Cobalt amount in the nutrient medium increases, its concentration in the worms biomass increases as well. The highest content of Cobalt was found in the biomass dry matter of worms grown in the nutrient medium enriched with the studied metal in the amount of 160 mg / kg.
Biomass of worms grown in the nutrient medium with 40 mg / kg of the studied metal added can be used in fish feeding as a protein supplement with a high content of Cobalt.


Keywords


vermiculture; worms biomass; metals accumulation; nutrient medium; Cobalt; atomic absorption spectroscopy

Full Text:

PDF

References


Bhorgin Lourdumary, A.J., & Uma, K. (2012) Nutritional Evaluation of Earthworm Powder (Lampito mauritii). Journal of Applied Pharmaceutical Science, 3(03), 082-084.

Das, A.K., & Dach, M.C. (1989). Earthworms meal as a protein concentratic for Japanese quiails. Ind. J. Poultry Science 24 (2), 137–138.

Das, A.K., & Dach, M.C. (1990). Earthworms meal as a protein concetratic for broilers. Indonesion J. of Tropical Agriculture, 67(4), 342–344.

Hasanuzzaman, A.F.Md., Hossian, Sk.Z., & Das, M. (2010). Nutritional potentiality of earthworm (Perionyx excavatus) for substituting fishmeal used in local feed company in Bangladesh.

Mesopot. J. Mar. Sci., 25(2), 134–139.

Jacob, J. (2013) Including Earthworms in Organic Poultry Diets. Organic Agriculture Available from: http://articles.extension.org/pages/69709/including-earthworms-in-organic-poultry-diets/ Accessed on 20.10.2017

Jacob, J. (2015) Use of Earthworms in Poultry Diets. Small and Backyard Flocks Available from: http://articles.extension.org/pages/67349/use-of-earthworms-in-poultry-diets/ Accessed on 20.10.2017

Kholodova, U.D., Povhan, M.F., & Morozova, R.P. (1992). Fabrics worms Eisenia foetida as a raw material source for the production of pharmaceuticals. Bioconversion of organic waste of the economy and the environment. Ivano-Frankivsk (in Russian).

Kholodovа, U.D., Morozova, R.P., Bezpalko, A.S., & Nikolaenko, I.A. (1994). The source of biologically active substances. Chemicals in the fields of agriculture, 4, 18-19 (in Russian).

Köse, B., & Öztürk, E. (2017). Evaluation of Worms as a Source of Protein in Poultry. Selcuk J Agr Food Sci, 31(2), 107-111

Kostecka, J. (2006). Possible use of earthworm Eisenia foetida (Sav.) biomass for breeding aquarium fish. European Journal of Soil Biology, 42, S231–S233.

Mashkin, Yu.O., & Merzlov, S.V. (2015). Vermykul'tyvuvannja - al'ternatyvnyj sposib oderzhannja bilkovo-mineral'noi' kormovoi' dobavky. Visnyk BNAU, 2(120), 132-135 (in Ukrainian).

Mason, W.T., Rottmann, R.W., & Dequine, J.F. (1992). Culture of earthworms for bait or fish food. Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, 1053, 1-4.

Merzlov, S.V., & Mashkin, Yu.O. (2015). Vmist Ferumu ta Magniju u biomasi vermykul'tury v zalezhnosti vid skladu substratu. Mizhnarodna naukovo-praktychna konferencija "Rozvytok nacional'noi' ekonomiky: teorija i praktyka", Chastyna 1, Ivano-Frankivs'k (in Ukrainian).

Suttle, N. F. (2010). The Mineral Nutrition of Livestock, CABI Publishing, London, UK.

Volodin, A., Golubenko, B. and Kirdina, K. (1995). Disposal of animal waste to produce a protein supplements and fertilizers. Feed industry, 6, 29-31 (in Russian).




DOI: http://dx.doi.org/10.15421/2017_155

Article Metrics

Metrics Loading ...

Metrics powered by PLOS ALM

Refbacks

  • There are currently no refbacks.




Since April 2018 Journal changed the editorial policy and starts to be published exclusively in English, and changed its main site into www.ujecology.com

 

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

© 2017 Ukrainian Journal of Ecology. ISSN 2520-2138