@article{MAKHILLJAVA20141364282,
    title = {Effect of Dietary Protein Level on Growth Performance and Nitrogen Excretion 
  of the Juvenile Convict Cichlid, <I>Amatitlania nigrofasciata</I>},
    journal = {Journal of Animal and Veterinary Advances},
    volume = {13},
    number = {6},
    pages = {390-394},
    year = {2014},
    issn = {1680-5593},
    doi = {javaa.2014.390.394},
    url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2014.390.394},
    author = {Nejdet,Umit,OsmanSabri,Kutalmis and},
    keywords = {Growth,protein requirements,Amatitlania nigrofasciata,ornamental fish,ammonia excretion},
    abstract = {A 8 weeks growth trial was conducted to determine the effects of dietary protein on the growth of the convict cichlid <I>Amatitlania nigrofasciata</I> and on water quality in closed recirculating systems. Four test diets were formulated to contain protein levels ranging 30-45%. The fish averaging 0.47&plusmn;0.07 g were reared in 10 L aquarium. Fish were fed <I>ad libitum</I> at 08:30, 12:30 and 16:30 for 8 weeks. A second-order polynomial regression between dietary protein levels and weight gain in each group, demonstrated that the most suitable protein level for maximum growth was determined to be 40.8%. The feed conversion ratios of fish ranged from 1.78-2.78 in the experimental groups. Results showed significant differences in SGR and WG. Dietary protein level significantly influenced ammonia excretion, fish fed 45% protein excreted higher concentrations of ammonia-nitrogen than fish fed 30-40% dietary protein. For optimum growth, feed conversion and ammonia excretion, a diet containing 40.8% protein, 12% lipid and 20.8 kJ gross energy/kg diet is recommended for juvenile convict cichlids, <I>A. nigrofasciata</I>.}
    }