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Artificial Rearing of Lambs: Feeding Cold Milk Ad Libitum versus Warm Milk Three Times Per Day to Appetite, and Effects of an Antibiotic-Vitamin-Iron Supplement on Growth Performance and Digestibility of Diet Constituents^{1, 2,}

Université Laval, Québec, Canada

Abstract

The advantages and possibilities of weaning lambs at 3 days of age and rearing them artificially in a program of intensive sheep production were well pointed out by Welch, Vander Noot and Gilbreath (1963), Large (1965a), Pinot and Teissier (1965) and Brisson and Lemay (1968). Various types of milk substitutes have been used with artificially reared lambs and most of them have been reviewed by Large (1965a) and Large and Penning (1967).

Liquid milk substitutes were usually fed at or near body temperature. Large and Penning (1967), however, reported that offering cold (0 C–14 C) reconstituted whole milk or milk substitute to early-weaned lambs (1 to 2 days of age) resulted in high growth rates and few health problems. The authors pointed out that one of the main advantages of the cold milk feeding method would be the greatly reduced demand for labor in such rearing systems.

The beneficial effects of antibiotic supplements on growth of young calves were reviewed by Preston (1962).

¹ Contribution No. 84, Faculte d'Agriculture, and No. 6, Centre de Recherches en Nutrition.

² This work was supported in part by an Operating Grant from Canada Department of Agriculture, Research Branch.

³ Departement de Zootechnie et Centre de Recherches en Nutrition.

⁴ Present address: Department of Dairy Science, The Ohio State University, Columbus.

⁵ The authors gratefully acknowledge Alex Couture Inc. Quebec City, for the tallow and Pfizer Company Ltd. Montreal, for the antibiotic-vitamin supplement. The authors also wish to acknowledge the help and advice given by Dr. Wilfried Holtmann of the Département de Zootechnie with regards to statistical analyses.