Abstract
Extract Sir:— Various techniques are employed to determine the gestational age of foetal lambs. Most are quantitative, based on weight or length measurements. Often crown anus length is used . (1) Evans, H.E. and Sack, W.O. 1973. Estimation of the developmental age of the ovine fetus and lamb. Vet. Rec., 99: 22–26. Quoted by Richardson, C.; Herbert, C.N.; Terlecki, S. (1976) [Google Scholar]

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