doenças derivadas da alimentaçao

[Esgalha]

ha concerteza aqui pelo forum biologos e veterinarios que me saibam repsonder a esta questao...

 

que tipo de problemas podem os peixes ter devido a defeciencias alimentares?

 

por exemplo ja ouvi dizer que alimentaçao demasiado rica em ferro e prejudicial ao figado, logo n convem abusar de bloodworm, coraçao de boi, espinafres etc etc.

 

mas que outro tipo de problemas poderemos ter?

imaginemos que n lhes sao fornecidas fibras suficientes ou calcio suficiente ou qq outro tipo de nutriente?

 

ja fazia falta um postezinho acerca de nutriçao :D

[nunomiguel]

Viva,

 

Retirei isto dum site já a algum tempo (que não me lembro qual é...).

Dá para ter uma ideia...

 

Calcium

Calcium is required for the formation of bone and the correct metabolic activity of the blood, nerves and heart i.e. it is essential as a cofactor for extracellular enzymes and proteins and vital in the integrity of skeletal and soft tissue and as a biological messenger in nerve excitation and muscle contraction, initiates hormonal secretion, and functions in intracellular regulation.  Calcium regulation and homeostasis in freshwater fish is via the gills, gut, and kidney (Hollis, 1997; Untergasser, 1991).  Uptake is achieved in the presence of vitamin D and may be inhibited in the presence of oxalic acid (calcium is converted into an insoluble salt)– a common constituent of many plants.  Other inhibitors include an excess of fibre which contains phytic acid; this combines with calcium in the intestines, forming an unusable calcium compound.  An excess of protein and or sodium increases the excretion of calcium.  It can be seen that the repercussions of feeding an unbalanced diet are serious indeed.

 

Potassium

Amongst most life functions, potassium is essential in maintaining the following systems: blood, endocrine, digestive, nervous; and also heart, kidneys, muscular and cellular functions.  A deficiency results in, decreased blood pressure, lethargy, nervousness, irregular heartbeat, and poor reflexes.  The deficiency affects the transmission of nerve and muscle impulses and prevents ‘normal’ chemical reactions within the cells.

 

Phosphorus

Phosphorus is essential for maintaining electrolyte balance.  A deficiency leads to the irregularities in the skeletal structure, brain cells and nervous system, circulatory systems digestive system, eyes, and the liver.  Deficiency symptoms include loss of appetite, lethargy, breathing gill beat irregularities and problems with several internal organs.  Phosphorus must be in balance with magnesium and calcium.

[Esgalha]

ja é um bom começo :D

 

entao relectivamente a excesso ou falta de proteiinas.

 

que papel negativo pode ter o fornecimento de ocmidademasiado rica em gorduras ( se´ra que os peixes tb têm ataques cardiacos e AVC's? )

 

etc etc.

 

 

n me admirava nada que mts dos problemas que o ppl acaba por ter com os peixes, n passará por uam alimentaçao incorrecta