1COSGROVE J R, BOOTH P J, FOXCROT G R. Opioidergie control of gonadotrophin secretion in the prepubertal gilt during restricted feeding and realimentation [ J]. Reprod, 1991,191:277 - 284. 被引量：1
2COSGROVE J R, TILTON JE, HUNTER M G, et al. Gonadotrophin -independent mechanisims participate in ovarian responses to realimentation in feed - restriected prepubertal gilts [ J ]. Biol Reprod, 1992,47:736 - 745. 被引量：1
3PRUNIER A, LOUVEAUL. Influcenee of ovariectomy on metabolic and endocrine parameters during sexal development in the female pig [J]. Journal of Endocrinology, 1997,154:423 -429. 被引量：1
6SEJRSEN K, HUBER J T, TUCKER H A, et al. Influ- ence of nutrition on mammary development in pre-and post-pubertal heifers [ J ]. Journal of Dairy Science, 1982,65 (5) :793 - 800. 被引量：1
7KERTZ A F, BARTON B A, REUTZEL L F. Relative efficiencies of wither height and body weight increase from birth until first calving in Holstein cattle [ J ]. Journal of Dairy Science, 1998,81 ( 5 ) : 1479 - 1482. 被引量：1
8MEYER M J, CAPUCO A V, ROSS D A, et al. De- velopmental and nutritional regulation of the prepuber- tal bovine mammary gland: 1I. Epithelial cell prolifer- ation, parenchymal accretion rate, and allometric growth [ J ]. Journal of Dairy Science, 2006,89 ( 11 ) : 4298 - 4304. 被引量：1
9LAMMERS B P, HEINRICHS A J, KENSINGER R S. The effects of accelerated growth rates and estrogen implants in prepubertal Holstein heifers on estimates of mammary development and subsequent reproduction and milk production [J ]. Journal of Dairy Science, 1999,82 ( 8 ) : 1753 - 1764. 被引量：1
10WILDMAN E E, JONES G M, WAGNER P E, et al. A dairy cow body condition scoring system and its re- lationship to selected production characteristics [J]. Journal of Dairy Science, 1982,65 ( 3 ) :495 - 501. 被引量：1
