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Effect of feeding protected
soybean fat supplement and Salbutamol administration on growth
performance, nutrient digestibility and carcass characteristics of
Iranian Bahmaei
feedlot lambs
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Forouzmand M*1, Ghasemi H2 and Rowghani E3 |
1Department of Animal Sciences, Yasouj University,
Yasouj, Iran; 2Animal Sciences, Yasouj University, Yasouj,
Iran; 3Department of Animal Sciences, Darab Branch,
Islamic Azad University, Darab, Iran
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Abstract |
This study was conducted
to evaluate the effect of feeding protected soybean fat and
beta-adrenergic agonist Salbutamol on growth performance, nutrients
digestibility and carcass characteristics of Iranian Bahmaei
feedlot lambs. Twenty male lambs (mean age 90±7 days, mean weight of
29±1.7 kg) were used in a completely randomized design with four
treatments (five replicates per treatment) for 80 days. The treatments
were: Control (basal diet), F, experimental diet containing 5% protected
soybean fat supplement, S, basal diet plus Salbutamol (4 mg/kg of DMI)
and FS, experimental diet containing 5% protected soybean fat supplement
and administration of Salbutamol (4 mg/kg of DMI). Treatments were
similar in terms of energy, protein, NDF contents and forage to
concentrate ratio. At the end of the experiment, the results showed that
although feeding fat supplement increased fat and ash digestibility, but
had no significant effect on body weight change, average daily gain and
feed conversion ratio, DM, OM, NDF and ADF digestibility. Salbutamol did
not affect lamb performance and nutrient digestibility however, improved
carcass characteristics by increasing weight and percentage of thigh,
shoulders, carcass without fat tail and decreased fat tail weight and
percentage. Simultaneous use of fat supplement and beta agonist
Salbutamol significantly increased weight and percentage of carcass tail
fat and reduced carcass without tail fat weight compared to the control
(P<0.05). Carcass weight and visceral components were not affected by
treatments (P>0.05). Therefore, based on the results of this study,
administration of Salbutamol (4 mg/kg of DMI) is recommended to improve
carcass characteristics but simultaneous use of protected supplemental
fat and beta agonist Salbutamol is not recommended.
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Keywords:
Carcass characteristics,
Lambs, Performance, Protected fat, Salbutamol |
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To cite this article:
Forouzmand M, H Ghasemi
and E
Rowghani, 2016.
Effect of feeding protected
soybean fat supplement and
Salbutamol administration on growth performance, nutrient digestibility
and carcass characteristics of Iranian
Bahmaei feedlot lambs.
Res.
Opin.
Anim. Vet. Sci., 6(1): 7-12. |
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