Journal of Animal Science and Biotechnology

Table 1 Lactation performance¹of young East Friesian-cross and Dorset-cross ewes (1996 and 1997)

From: Dairy sheep production research at the University of Wisconsin-Madison, USA – a review

Trait	Breeding of ewe
Trait	Dorset-cross³	East Friesian-cross²
Number of lactations	76	246
Lactation length, d	92.7^a	126.2^b
Milk yield, kg	56.9^a	109.1^b
Fat,%	5.5^a	5.0^b
Fat yield, kg	3.3^a	5.5^b
Protein,%	5.4^a	5.0^b
Protein yield, kg	3.2^a	5.4^b
Somatic cell count, log₁₀	4.99	5.02

¹Ewes were milked starting approximately 30 d after parturition.
²75% or 87.5% Dorset breeding and 0.0% East Friesian breeding.
³12.5% to 50% East Friesian breeding.
^a,bMeans within a row with no superscript in common are different (P < 0.05).

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ISSN: 2049-1891

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