id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72251	Juga, J.; Syväjärvi, J.; Vilva, V.	A simulation study for optimizing the use of dairy bulls in breeding programs 	1987	8	.pdf	application/pdf	3266	174	61	number of number of number of young bulls daughters in tested bulls progeny test 1: 132 180 24 2: 132 180 12 3: 238 100 24 4: 238 100 12 5: 477 50 24 Weights that were used in overall selection index. /year proportions of bulls used for inseminations: 60 % with young bulls 34 % with tested bulls 6 % with beef bulls inseminations required: 1.7 inseminations/pregnancy young bulls; 10.7 inseminations/lactation record tested bulls: 3.6 inseminations/lactation record (37 % of Ist lactation records were made by daughters of young bulls 63 % of Ist lactation records were made by daughters of tested bulls) 6 bull sires/year tested bulls were used for 3 years generation interval in sire to son path was 8 years heritabilities: milk production 0.25 fertility 0.05 seminated with tested bull semen or with young bull semen were fixed (Table 1).	cache/afs-72251.pdf	txt/afs-72251.txt