ABSTRACT
Effect of the supplementation on twin rearing ewes upon milk produetion, liveweight, body condition and lambs growth

Christian Crempien L.1 y Andrés Castillo M. 2
 

Milk production in Precocious Merino ewes rearing twin lambs, was investigated. Sixteen ewes of the same age, similar liveweight, lambing date and body condition, were stocked at arate of 6.15 heads/ ha, in a subterranean clover and phalaris pasture. Eight ewes were supplemented with pellets (10.67 MJ metabolizable energy and 12.6% crude protein per kg D.M.). Concentrate did not affect milk production, body weight nor body condition of the ewes, neither lambs growth nor botanical composition of the pasture. Milk production curves were adapted to Wood's mathematical model.

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1 Estación Experimental La Platina (INIA), Casilla 439, Correo 3, Santiago, Chile.
2 Egresado de la Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile.