EXERCISE AND INDUCED-PARTURITION EFFECTS ON DYSTOCIA AND REBREEDING IN BEEF-CATTLE

被引:8
作者
BELLOWS, RA
SHORT, RE
STAIGMILLER, RB
机构
[1] USDA-ARS, Miles City, 59301., MT
关键词
EXERCISE; PARTURITION; INDUCTION; BEEF CATTLE;
D O I
10.2527/1994.7271667x
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The study involved 44 primiparous, 2-yr-old heifers and 74 multiparous cows, 3 or 4 yr old, bred to a single Charolais bull. Variables were dam age (heifer, H; or cow, C), restricted (RE) or forced (FE) exercise for the last 90 d precalving, and natural (NP) or induced (IF) parturition. The RE dams were held in drylots; FE dams were on range until d 260 to 267 and walked 3.2 km/d for feed and water. Dams with IP received 10 mg of flumethazone on d 269 of gestation. Diets for FE and RE dams contained the same hay and grain, but FE dams were fed in amounts projected to give weight changes approximating those of RE dams. All dams were calved in drylots; thereafter, all pairs were maintained together on pasture to the end of the study. Exercise did not affect dystocia score or incidence, increased feed requirement 31% (P < .01), and gave a 14.8% higher (P < .05) pregnancy rate in the subsequent 45-d breeding season. We hypothesize the increased pregnancy may have resulted from a feed-endocrine effect related to body weight gain, body composition-metabolic changes, or subsequent higher feed intake. Induced calving shortened gestation length 8 d (P < .01), reduced calf birth wt 2.4 kg (P < .01), increased the incidence of retained fetal membranes (RFM) 60.3% (P < .01), increased interval from calving to first estrus 7.6 d (P < .05), and reduced calf weaning weight 6.9 kg (P < .15). Body weights and calf birth weights from C exceeded those of H (P < .05 to < .01), and more C (47.1%; P < .01) showed estrus by beginning of the breeding season and had 20.4-d shorter (P < .01) postpartum interval than H. We conclude that gestation exercise increased feed requirements, had no significant effect on parturition traits, and increased subsequent pregnancy rate; induced calving increased the incidence of RFM, increased the postpartum interval, and decreased subsequent pregnancy rate.
引用
收藏
页码:1667 / 1674
页数:8
相关论文
共 21 条
[1]   EFFECT OF PREPARTUM EXERCISE ON FEED-INTAKE AND MILK-PRODUCTION OF MULTIPAROUS COWS [J].
ANDERSON, MJ ;
LAMB, RC ;
WALTERS, JL .
JOURNAL OF DAIRY SCIENCE, 1979, 62 (09) :1420-1423
[2]   EFFECTS OF SIRE AND DAM ON LATE-PREGNANCY CONCEPTUS AND HORMONE TRAITS IN BEEF-CATTLE [J].
BELLOWS, RA ;
STAIGMILLER, RB ;
ORME, LE ;
SHORT, RE ;
KNAPP, BW .
JOURNAL OF ANIMAL SCIENCE, 1993, 71 (03) :714-723
[3]  
BELLOWS RA, 1988, J ANIM SCI, V66, P1073
[4]   LEVEL OF NUTRITION AND VISCERAL ORGAN SIZE AND METABOLIC-ACTIVITY IN SHEEP [J].
BURRIN, DG ;
FERRELL, CL ;
BRITTON, RA ;
BAUER, M .
BRITISH JOURNAL OF NUTRITION, 1990, 64 (02) :439-448
[5]   EFFECT OF CONTROLLED EXERCISE ON SEMEN CHARACTERISTICS IN 2-YEAR-OLD STALLIONS [J].
DINGER, JE ;
NOILES, EE ;
HOAGLAND, TA .
THERIOGENOLOGY, 1986, 25 (04) :525-535
[6]   EFFECT OF CONTROLLED EXERCISE ON LIBIDO IN 2-YR-OLD STALLIONS [J].
DINGER, JE ;
NOILES, EE .
JOURNAL OF ANIMAL SCIENCE, 1986, 62 (05) :1220-1223
[7]   EFFECTS OF DAM AGE, PREPARTUM NUTRITION AND DURATION OF LABOR ON PRODUCTIVITY AND POSTPARTUM REPRODUCTION IN BEEF FEMALES [J].
DOORNBOS, DE ;
BELLOWS, RA ;
BURFENING, PJ ;
KNAPP, BW .
JOURNAL OF ANIMAL SCIENCE, 1984, 59 (01) :1-10
[8]   EFFECTS OF EXERCISE DURING THE GROWING-FINISHING PERIOD ON PERFORMANCE, AGE AT PUBERTY AND CONCEPTION RATE OF GILTS [J].
HALE, OM ;
NEWTON, GL ;
CLEVELAND, ER .
JOURNAL OF ANIMAL SCIENCE, 1984, 58 (03) :541-544
[9]   EFFECTS OF FORCED EXERCISE DURING GESTATION ON FARROWING AND WEANING PERFORMANCE OF SWINE [J].
HALE, OM ;
BOORAM, CV ;
MCCORMICK, WC .
JOURNAL OF ANIMAL SCIENCE, 1981, 52 (06) :1240-1243
[10]   REPRODUCTIVE-PERFORMANCE OF EWES EXPOSED TO VASECTOMIZED RAMS BEFORE BREEDING AND FORCED EXERCISE BEFORE LAMBING [J].
HALLFORD, DM ;
HUDGENS, RE ;
MORRICAL, DG .
THERIOGENOLOGY, 1982, 18 (06) :663-669