Izvorni znanstveni članak

Effects of feeding different levels of formalin (37% formaldehyde) and urea on broiler health and performance.

Muhammad Tariq Javed ; Department of Veterinary Pathology, University of Agriculture, Faisalabad, Pakistan
Muhammad Amir Sarwar ; Department of Veterinary Pathology, University of Agriculture, Faisalabad, Pakistan
Razia Kausar ; Department of Veterinary Anatomy, University of Agriculture, Faisalabad, Pakistan
Imtiaz Ahmad ; Department of Veterinary Pathology, University of Agriculture, Faisalabad, Pakistan

Sažetak

This study was conducted on 280 birds divided into seven groups at 21 days of age and were given urea and formalin, alone and in combination through basal feed. Recorded observations revealed that at the end of the 3rd week, live mass and dressed carcass mass of birds given milder levels of urea and formalin (U-1% and F-2.5 ml) differed non-significantly from that of the control group, while these levels were lower in other treatment groups. Absolute mass of thymus was significantly lower (P<0.05) in all treatment groups except those given 20-ml formalin along with different levels of urea (1% and 4%), while that of the bursa was lower in all treatment groups. Absolute mass of spleen was significantly lower (P<0.05) in birds given 1% urea + 2.5 ml formalin and 4% urea + 20 ml formalin, while that of liver and kidney was lower (P<0.05) in birds given 20 ml formalin and in those given higher concentration of urea, along with two levels of formalin, than the control group (U-4%+F-2.5 ml; U-4%+F-20 ml). A non-significant difference was observed in absolute heart, proventriculus and gizzard masses between treatment and control birds. Feed consumption at the third week was significantly higher (P< 0.05) in birds given 20 ml formalin alone, or with 1% urea, than the control group. Final results of serum total proteins, albumin and fibrinogen showed a non-significant difference between treatment and control groups. However, serum globulins were significantly higher (P<0.05) in birds fed 1% urea + 20 ml formalin than the control group.

Ključne riječi

urea; formalin; live mass; carcass mass; organ mass; serum; proteins; broilers

Hrčak ID:

81098

URI

https://hrcak.srce.hr/81098

Datum izdavanja:

20.10.2002.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.248 *