Effect of Rapid Growth with Fattening of Dairy Heifers on Their Lactational Ability
Open Access
- 1 March 1960
- journal article
- research article
- Published by American Dairy Science Association in Journal of Dairy Science
- Vol. 43 (3) , 377-387
- https://doi.org/10.3168/jds.s0022-0302(60)90172-7
Abstract
Identical twin heifers were separated at 4 to 12 mo. and reared either normally, with little grain feed, or by nearly full feeding of grain along with hay. The latter fattened heifers were 32% heavier than their mates at 2 yr. After calving they were fed alike. Milk production of 7 fattened twins averaged only 84.8% as much as normals. The lower average production of fattened twins persisted also in the 2d lactation. Udders of some of the rapidly grown twins were incompletely developed, with open areas lacking lobule-alveolar tissue.Keywords
This publication has 2 references indexed in Scilit:
- Influence of rearing intensity on body development and milk productionProceedings of the British Society of Animal Production, 1956
- The Effect of Inanition on Mammary-Gland Development and LactationJournal of Nutrition, 1948