Effects of higher levels of chromium and copper on broiler health and performance during the peak tropical summer season
| Autor: | Fiaz Ahmad, Muhammad Tariq Javed, Mansoor Abdullah Sandhu, Razia Kausar |
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| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | Veterinarski arhiv Volume 74 Issue 5 |
| ISSN: | 1331-8055 0372-5480 |
| Popis: | The effects of higher levels of chromium alone, and in combination with copper, were investigated in broiler chicks divided into seven equal groups. Group G served as control, receiving no treatment. Groups A, B and F received chromium chloride at a rate of 2 g/kg and nicotinic acid 150 mg/kg, while groups C, D and E received chromium chloride 8 mg/kg and nicotinic acid 150 mg/kg. Broilers in groups A and C received copper sulfate at a rate of 200 mg/kg, while groups B and D received 400 mg/kg feed. Both live and carcass mass showed non-significant difference between treatment groups and control during the treatment period. However, during the withdrawal period these were higher (P Istražen je učinak većih razina samog kroma i u kombinaciji s bakrom na zdravlje i proizvodnost tovnih pilića. Pilići u skupinama A, B i F bili su hranjeni hranom u koju je bio umiješan krom u obliku krom klorida u količini od 2 g/kg te nikotinska kiselina u količini od 150 mg/kg. C, D i E skupine bile su hranjene hranom u koju je primiješan krom klorid u količini od 8 mg/kg te nikotinska kiselina u količini od 150 mg/kg. Pilićima skupine A i C bio je primiješan bakreni sulfat u dozi od 200 mg/kg, dok je skupinama B i D primiješan bakreni sulfat u dozi od 400 mg/kg. Težine pilića pokusnih skupina nisu se znatno razlikovale u odnosu na kontrolu, iako su u razdoblju bez primjene bile više u ptica hranjenih kromom odnosno onih kromom i bakrenim sulfatom. Konverzija hrane bila je bolja u pokusnih skupina u odnosu na kontrolu. Relativna težina jetre u odnosu na težinu tijela tijekom prva dva tjedna bila je niža (P |
| Databáze: | OpenAIRE |
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