1 |
Almquist JO. 1973. Effects of sexual preparation on sperm output, semen characteristics and sexual activity of beef bulls with a comparison to dairy bulls. J. Anim. Sci., 36:331-336
DOI
|
2 |
Flipse RJ and Almquist JO. 1961. Effect of total digestible nutrient intake to four years of age on growth and reproductive development and performance of dairy bull. J. Dairy Sci., 44:905
DOI
|
3 |
Foote RH, Munkenback N and Greene WA. 1976. Testosterone and libido in Holstein bulls of various ages. J. Dairy Sci., 59:2011-2013
DOI
ScienceOn
|
4 |
Gamer DL, Johnson LA, Allen CH, Palencia DD and Chambers CS. 1996. Comparison of seminal quality in Holstein bulls as yearlings and mature sires. Theriogenology, 45:923-924
DOI
ScienceOn
|
5 |
Price EO and Wallach SJR. 1990. Short-term individual housing temporary reduces the libido of bulls. J. Anim. Sci., 68:3572-3577
DOI
|
6 |
Swanson LV, Wettemann RP, Rawlings NC, Hafs HD and Magee WT. 1971. Pubertal relationships of some endocrine and reproductive criteria in Hereford bulls. J. Anim. Sci., 33 :823-828
DOI
|
7 |
Van Demark NL, Boyd LJ and Baker FN. 1956. Potential services of bull frequently ejaculated for consecutive years. J. Dairy Sci., 39:1071-1072
|
8 |
Wells ME, Awa OA and Fancy SS. 1972. Effect of season on acrosome status in the bull. J. Dairy Sci., 55:1174-1178
DOI
ScienceOn
|
9 |
Thibier M. 1975. Peripheral plasma testosterone concentrations in bulls around puberty. J. Reprod. Fertil., 42:567-569
DOI
ScienceOn
|
10 |
Erb RE, Andrews FN and Hilton JH. 1942. Seasonal variation in semen quality of the dairy bull. J. Dairy Sci., 25:815-826
DOI
|
11 |
Everett RW and Bean B. 1982. Environmental influences on semen output. J. Dairy Sci., 65: 1303-1310
DOI
ScienceOn
|
12 |
Amann RP, Almquist JO and Lambiase JT. 1966. Seasonal cycles in bull semen characteristics. J. Anim. Sci., 25:916
|
13 |
Baker FN, Van Demark NL and Salisbury G. 1955. Growth of Holstein bulls and its relation to sperm production. J. Anim. Sci., 14:746
DOI
|
14 |
Hahn J, Foote RH and Seidel GE Jr. 1969. Testicular growth and related sperm output in dairy bulls. J. Anim. Sci., 29:41-47
DOI
|
15 |
Wallach SJ and Price EO. 1988. Bulls fail to show preference for estrous females in serving capacity tests. J. Anim. Sci., 66:1174-1178
DOI
|
16 |
Van Demark NL and Manger RE. 1964. Effect of energy intake growth on the reproductive performance of dairy bulls. 1. Growth of reproductive organ and puberty. J. Dairy Sci., 47:798
DOI
|
17 |
Brockett CC, Presicce GA, Foote RH, Kaproth MT and Rycroft HE. 1994. Semen quality and behavior of Holstein bulls exposed to estradiol-treated bulls for mounts. J. Dairy Sci., 77:124-131
DOI
ScienceOn
|
18 |
Field MJ, Bums WC and Warnick AC. 1979. Age, season, and breed effects on testicular volume and semen traits in young bulls. J. Anim Sci., 48:1299-1304
DOI
|
19 |
SAS/STAT User's guide (release 6.03 edition) SAS Institute Inc, Cary NC USA, 1988
|
20 |
Baronos S, Mann T, Rowson LE and Skinner JD. 1969. The effect of nutrition and androgens on the composition of bovine blood plasma and seminal plasma at puberty. Br. J. Nutr., 23:191-201
DOI
ScienceOn
|
21 |
김선환, 김기구, 유규종, 고석권, 김경주, 김충기, 김창근, 정영채. 1981. 한우종모우의 번식능력에 관한 연구. I. 종모우의 연령, 계절 및 채취 빈도가 정액량, 정자농도, 총정자수 및 정자활력에 미치는 영향. 한국축산학회지. 5:35-42
|
22 |
Everett RW, Bean B and Foote RH. 1978. Sources of variation of semen output. J. Dairy Sci., 61: 90-95
DOI
ScienceOn
|
23 |
Amann RP, Kavanaugh JF, Griel Jr LC and Voglmayr JK. 1974. Sperm production of Holstein bulls determined from testicular spermatid reserves, after cannulation of rete testis or Vas deferens and by dairy ejaculation. J. Dairy Sci., 57:93-99
DOI
ScienceOn
|