@inproceedings{fdi:010090995,
  title = {{T}he digestive function of {P}seudoplatystoma punctifer early juveniles is differentially modulated by the dietary protein and lipid levels and their ratios [r{\'e}sum{\'e}]},
  author = {{C}astro {R}uiz, {D}. and {A}ndree, {K}.{B}. and {F}ernández-{M}{\'e}ndez, {C}. and {G}arcía-{D}ávila, {C}. and {C}ahu, {C}. and {G}isbert, {E}. and {D}arias, {M}aria {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he effect of different dietary protein and lipid levels in the expression of several digestive genes during the early development of {P}seudoplatystoma punctifer, an {A}mazonian catfish with high aquaculture potential, was evaluated. {L}arvae 









































were fed {A}rtemia nauplii from 4 to 12 days post fertilization (dpf) and weaned from 13 dpf onto compound diets containing different protein:lipid levels (30:15, 30:10, 45:15 or 45:10). {T}he expression of trypsinogen-try, chymotrypsin-chy, amylase









































amy, lipoprotein lipase-lpl, phospholipase-phl and pepsinogen-pep was analyzed at the end of the {A}rtemia (12 dpf) and compound diet (26 dpf) feeding periods in order to better understand the digestive function and nutritional needs of this 









































species. {E}xcept for pep expression, that was highest in 45:10 group, no differences were found in the expression of the analyzed digestive genes during the {A}rtemia feeding period (12 dpf). {H}owever, digestive genes were differentially modulated by the different  compound diets (26 dpf). {T}ryp, amy, phl and pep expressions were highest in 45:15 group, whereas lpl expression was highest in 45:10 group and lowest in 30:15 and 30:10 groups. {G}roups 30:15, 30:10 and 40:10 showed similar levels of amy and phl expression. {T}ry expression was lowest in 30:10 group followed by 30:15 and 45:10 groups, whereas the lowest pep expression was observed in 30:15 and 30:10 groups followed by 45:10 group. {N}o significant differences were found in chy expression among the four dietary treatments. {T}ry and lpl expressions increased during development in all groups with the exception of groups 30:10 and 30:15, respectively. {P}hl expression increased during development in 45:15 and 45:10 groups while it remained stable in the others. {C}hy expression decreased during development in 45:10 group and amy expression increased during development in 45:15 group whereas their expression remained invariable in the rest of the groups. {P}ep expression increased during development  in all dietary groups. {I}n conclusion, the dietary protein and lipid content and their ratios modulated the digestive function in {P}. punctier early juveniles. {T}hus, the better growth and survival and the lower incidence of cannibalism observed in 45:15 group might be explained by the better digestive performance showed by these individuals.},
  keywords = {{PEROU} ; {AMAZONIE}},
  numero = {},
  pages = {48},
  booktitle = {{L}acqua 19 : {A}cuicultura {S}ustentable para el {D}esarrollo {S}ocial y {E}conómico},
  year = {2019},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090995},
}