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Growth rate and metabolic status in Buffalo- calves fed on diets supplemented with lasalocid.
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Abstract: Forty buffalo male calves were used to study the effect of Lasalocid supplementation (33 mg/kg feed) on their growth rate and metabolic status. Calves were divided according to their age and initial live body weights (LBW) into two main groups A (3.8:t0.37 mo and 109:t 2.8 kg) and B (17.9:t 1.1 mo and 220:t 1 kg) each of twenty buffalo male calves. Animals of each main group were divided into four subgroups based on concentrate/roughage ratio (C:R) of the diet and lasalocid supplementation: 1) fed 60:40 C:R none supplemented diet (MC), 2) fed 60:40 C:R supplemented diet (ML), 3) fed 40:60 C:R none supplemented diet (RC) and 4) fed 40:60 C:R supplemented diet (RL).
Live body weight (LBW) of the groups treated with lasalocid and fed 60 % of concentrate in their diet (AML and BML) was higher than other treated groups along the growth period. Differences in daily weight gain (DWG) between groups were significantly affected by lasalocid treatment. The groups AML and BML achieved the highest DWG.
The advance of the experimental period exerted highly significant (p < 0.01) influence upon concentration of the tested blood metabolites. Lasalocid treatment depressed percent of PCV (P > 0.05) and slightly decreased Hb concentration. No significant differences in plasma BUN, creatinine and thyroxine concentrations were detected due to type of ration or lasalocid treatment in both groups (A and B). Blood creatine concentrations were significantly (P<0.05) reduced by lasalocid treatment and high concentrate feeding. Lasalocid treatment significantly (P<0.05) increased concentration of blood albumin and total lipids in the heavier groups of calves (B). In group A, differences in blood phosphorus content were significantly (P<0.05) referring to the type of ration.
Changes in blood metabolites associated with ionophore and high concentrate feeding may be indirectly related to increased turnover rate of nitrogen metabolism and absorption of minerals via active transport mechanism involving changes in energy available for ion transport.
Keywords: Buffalo calves, lasalocid, growth, blood metabolites.
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| Publication year |
2000
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| Availability location |
7 شارع نادى الصيد-الدقى(معهد بحوث الانتاج الحيوانى)
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| Availability number |
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| Organization Name |
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| City |
القاهرة
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| serial title |
Egypt. J.Agric. Res.
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| Department |
Buffalo Breeding Research Department
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| Author(s) from ARC |
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| Agris Categories |
Animal physiology - Nutrition
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AGROVOC
TERMS |
Blood plasma.
Buffalo meat.
Calves.
Metabolism.
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| Publication Type |
Journal
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