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Your search keyword '"Martin Valverde-Romero"' showing total 2 results
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2 results on '"Martin Valverde-Romero"'

1. Use of tuna industry waste in diets for Nile tilapia, Oreochromis niloticus, fingerlings: effect on digestibility and growth performance

Author

Crisantema Hernández, Miguel A Olvera-Novoa, Domenico Voltolina, Ronald W Hardy, Blanca González-Rodriguez, Patricia Dominguez-Jimenez, Martin Valverde-Romero, and Samuel Agramon-Romero

Subjects
alimentación de peces, derivados de la pesca, ensilado, proteínas prestadas, Oreochromis niloticus, Aquaculture. Fisheries. Angling, SH1-691, Oceanography, GC1-1581, Biology (General), QH301-705.5
Abstract

During the tuna canning process, about 52~54% of the total weight of the fish is discarded as waste, which can be processed in order to obtain tuna byproducts meal (TBM), or stabilized as tuna silage hydrolysates (TSH). Both products were tested as replacements of soybean meal (SBM), in diets for fingerling male Nile tilapia Oreochromis niloticus. Seven test diets were isonitrogenous (35% CP) and isoenergetic (19 kJ g-1): a basal diet contained SBM as main protein source (TSH0); four experimental diets had increasing inclusion levels of TSH replacing 25, 50, 75 and 100% of the SBM protein. The sixth diet contained TBM as sole protein source, and a commercial feed for tilapia was used as reference diet (RD). The diets were fed for eight weeks to triplicate tanks, each with 15 fry tilapia (initial weight of 0.89 ± 0.29 g). Tilapia fed the TBM diet had greater weight gain and feed intake, and lower feed conversion ratios than those fed diets containing with TSH. The RD, TSH25 and TSH50 diets gave the similar growth response. Fish fed diets TSH0, TSH75% and TSH100% showed reduced growth performance.

Published
2013

2. Partial replacement of fishmeal with meat and bone meal and tuna byproducts meal in practical diets for juvenile spotted rose snapper Lutjanus guttatus

Author

Patricia Dominguez-Jimenez, Alan González-Santos, Blanca González-Rodríguez, Martin Valverde-Romero, and Crisantema Hernández

Subjects
0106 biological sciences, Lutjanus guttatus, growth, Aquatic Science, Biology, Oceanography, 01 natural sciences, Animal science, Fish meal, Aquaculture, snapper, Juvenile, Meal, business.industry, 010604 marine biology & hydrobiology, 04 agricultural and veterinary sciences, Meat and bone meal, Fishery, aquaculture, 040102 fisheries, 0401 agriculture, forestry, and fisheries, animal protein, Whole body, business, Tuna
Abstract

A 120 days feeding trial was conducted to evalúate diets in which fish meal (FM) was replaced with meat and bone meal (MBM) or tuna byproduct meal (TBM) on growth performance, apparent digestibility and hematological parameters of juvenile spotted rose snapper (SRS) L. guttatus. Three isonitrogenous compounds (47.6-49.0%) and isoenergetic (20.9-22.9 kJ g-¹) diets were formulated. A control diet contained FM as a main protein source (D-FM) and two diets with 35% of fish meal protein replaced by MBM or TBM protein (D-MBM, D-TBM). Each diet was fed to triplícate groups of 20 SrS juvenile (initial weight 8.2 ± 0.02 g) to apparent satiation three times a day. Growth performance, hematological parameters and apparent digestibility of SRS fed D-MBM or D-TBM diets were not significantly different from D-FM diet. However, the whole body crude protein was significantly higher in D-MBM group than D-TBM group, and the values were comparable to D-FM group. Based on these results, the meat and bone meal is an economical and viable option, as tuna byproduct meal in practical diets for juvenile spotted rose snapper.

Published
2016

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