Now showing items 1-1 of 1
A study of the interactions between Holstein-Friesian genotypes and feeding systems, with emphasis on system performance and cow grazing ability : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Animal Science, Institute of Veterinary, Animal and Biomedical Sciences, Massey University, New Zealand
(Massey University, 2006)
Imported genetic material of the Holstein-Friesian breed from overseas (OS), mainly from North America, has been used in New Zealand (NZ) since the late 1960's. This has diluted the genetic base of the former NZ Friesian ...