Effect of lignosulfonate supplementation on carryover of monocrotophos to milk in lactating crossbred goats
2015
Kumar, Vinod | Puniya, Monica | Roy, Debashis
This study was conducted to investigate the effect of lignosulfonate supplementation on carryover of monocrotophos to milk in crossbred (Alpine × Beetal) lactating goats. Study was conducted in two phases: In phase-I an in vitro experiment was conducted in two sets to observe the effect of different levels of monocrotophos (MCP) on in vitro digestibility parameters (trial 1) and calcium lignosulfonate (LIG) as ameliorant (trial 2). Based on result obtained in in vitro experiment, 25 mg MCP/kg and 2.5% LIG (DM basis) were tested for in vivo experiment in phase II. For in vivo study, twenty lactating goats were randomly distributed into four treatments of five animals in each. The dietary treatments consisted of basal ration devoid of supplemental LIG and MCP (control) or were supplemented with LIG (2.5%, DM basis), MCP (25 ppm, DM basis) or both LIG (2.5%) and MCP (25 ppm). Goats were raised for 60 days and daily feed intake and milk yield was recorded. At 0, 15, 30, 45 and 60 days, milk samples were analysed for its composition and carryover of MCP. In the present findings, MCP intoxication did not affected (P>0.05) intake of DM, DCP and TDN. Milk yield (ranged 1.30-1.38 kg/day) and its composition was similar in control, LIG and MCP group but in MCP with LIG supplemented goats had significantly (P<0.05) lower milk yield, %fat, 4%FCM, energy corrected milk and milk energy corrected value. The content of protein, lactose, total solid and SNF varies over time. The supplementation of lignosulfonate as mechanical antidote in MCP intoxicated goats lowered its carryover to milk but its palatability of must be increased in diet either as total mixed ration or as pelleted feed.Â
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