共 50 条
- [1] EFFECTS OF BODY MEASUREMENTS AND WEIGHT ON CALF SIZE AND CALVING DIFFICULTY OF HOLSTEINS[J]. JOURNAL OF DAIRY SCIENCE, 1989, 72 (09) : 2402 - 2410SIEBER, MFREEMAN, AEKELLEY, DH
- [2] RELATIONSHIPS OF PELVIC STRUCTURE, BODY MEASUREMENTS, PELVIC AREA AND CALVING DIFFICULTY[J]. JOURNAL OF ANIMAL SCIENCE, 1988, 66 (05) : 1081 - 1088JOHNSON, SKDEUTSCHER, GHPARKHURST, A
- [3] FACTORS AFFECTING CALVING DIFFICULTY AND THE INFLUENCE OF PELVIC MEASUREMENTS ON CALVING DIFFICULTY IN PERCENTAGE LIMOUSIN HEIFERS[J]. OKLAHOMA AGRICULTURAL EXPERIMENT STATION MISCELLANEOUS PUBLICATION, 1979, (104): : 136 - 144BELCHER, DRFRAHM, RR
- [4] Calving difficulty as related to body weights and measurements of cows and calves in a herd of Gascon breed[J]. CZECH JOURNAL OF ANIMAL SCIENCE, 2008, 53 (05) : 187 - 194Bures, D.Barton, L.Zahradkova, R.Teslik, V.Fiedlerova, M.
- [5] Estimation of Genetic Parameters and Correlations among Some Body Measurements of Holstein Calves and Effects of These Measurements on Calving Difficulty[J]. JOURNAL OF ANIMAL AND VETERINARY ADVANCES, 2009, 8 (08): : 1589 - 1594Unalan, Adnan
- [6] EFFECT OF SIRE ON CALVING DIFFICULTY[J]. JOURNAL OF ANIMAL SCIENCE, 1972, 35 (05) : 1089 - &OMARY, CCCOONRAD, DJ
- [7] A STRATEGY FOR MINIMIZING CALVING DIFFICULTY[J]. VETERINARY MEDICINE, 1993, 88 (08) : 778 - &ANDERSEN, KJBRINKS, JSLEFEVER, DGODDE, KG
- [8] Genetic relationships of calving difficulty with birth measurements and carcass traits in Japanese Black cattle[J]. ANIMAL SCIENCE JOURNAL, 2020, 91 (01)Hosono, MasahikoOyama, HidemiInoue, Keiichi
- [9] SOME OBSERVATIONS ON THE PREDICTION OF CALVING DIFFICULTY[J]. VETERINARY RECORD, 1979, 105 (23) : 533 - 534CLARKEWILLIAMS, JFOGORMAN, MGROGER, PA
- [10] Calving difficulty in Holsteins and Jerseys and their crossbreeds[J]. POULTRY SCIENCE, 2004, 83 : 284 - 284McClintock, S.Kevin, B.Wells, M.Michael, G.