Abstract
ABSTRACT The objective of this study was to evaluate the productivity and carcass traits of unweaned Suffolk lambs finished on pasture and subjected to three strategies for endoparasite control: prophylactic treatment of all animals every 28 days; treatment of animals with a cut off number of nematode fecal egg count (FEC) ≥ 700; and treatment of animals using the FAMACHA scores ≥ 3. Average daily weight gain (ADG) and FEC were evaluated every 14 days for 112 days. Body condition [...]
Highlights
In sheep production, the main objective is undoubtedly the economic production, maintaining high welfare indicators
The objective of this study was to evaluate the productivity and carcass traits of unweaned Suffolk lambs finished on pasture and subjected to three strategies for endoparasite control: prophylactic treatment of all animals every 28 days; treatment of animals with a cut off number of nematode fecal egg count (FEC) ≥ 700; and treatment of animals using the FAMACHA scores ≥ 3
Pasture conditions were homogeneous for the three strategies of endoparasite control (P>0.05) (Table 1)
Summary
The main objective is undoubtedly the economic production, maintaining high welfare indicators. Biotic and abiotics aspects (i.e. nutrition and health programs) have an important impact on animal yield (Demirhan, 2019). Finishing lambs on pasture is challenging due to the high rate of nematode infections (Molento et al, 2016). Imported breeds with high nutritional requirements and sensibility to gastrointestinal nematodes are used in Brazil to improve productivity indexes (Amarante et al, 2004). Pasture-based sheep production is more challenging to young animals due to their high susceptibility to parasite infections (Greer, 2009), since nutritional management and parasite control are crucial for
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