共 13 条
[1]
Dammrich K, 1970, Zentralbl Veterinarmed B, V17, P131
[2]
EVANS M, 1975, POULTRY INT, V14, P60
[3]
EVANS M, 1975, POULTRY INT, V14, P58
[4]
EVANS M, 1975, POULTRY INT, V14, P56
[5]
GROTH W., 1962, ZENTRALBL VETERINARMED, V9, P1009
[6]
HELDER JF, 1974, INDIAN POULT REV, V6, P85
[7]
LENKEIT W, 1972, HDB TIERERNAHRUNG, P593
[8]
RODENHOFF G, 1971, Zentralblatt fuer Veterinaermedizin Reihe A, V18, P297
[9]
TITUS HW, 1971, SCI FEEDING CHICKENS, P135
[10]
WALKER D, 1969, POULTRY WORLD 0501, P19