PROTEIN AND FAT-METABOLISM IN COWS GIVEN SOMAVUBOVE BEFORE PARTURITION

被引:36
作者
SIMMONS, CR [1 ]
BERGEN, WG [1 ]
VANDEHAAR, MJ [1 ]
SPRECHER, DJ [1 ]
SNIFFEN, CJ [1 ]
STANISIEWSKI, EP [1 ]
TUCKER, HA [1 ]
机构
[1] UPJOHN CO,PERFORMANCE ENHANCEMENT RES,KALAMAZOO,MI 49001
关键词
MILK PROTEIN YIELD; FAT METABOLISM; RECOMBINANT BOVINE SOMATOTROPIN; PARTURITION;
D O I
10.3168/jds.S0022-0302(94)77125-3
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Forty-one Holstein cows were injected with 0, 5, or 14 mg/d of bST for the last 46 +/- 6 d before parturition. Compared with data for controls, the 5- and 14-mg doses of bST increased apparent protein synthesis about 16% before parturition. Exogenous bST before parturition increased apparent protein degradation 30% during wk 1 after parturition. During wk 1 of lactation, 14 mg of bST also increased milk protein yield 33%. No treatment differences were present in concentration of serum NEFA, body condition score, or thickness of subcutaneous fat. Therefore, administration of bST before parturition did not alter metabolism of subcutaneous fat. Prepartum treatment with 5 and 14 mg of bST increased and maintained serum somatotropin at 6.5 and 22.7 ng/ml, respectively, compared with 1.6 ng/ml in controls. Concentrations of serum IGF-I were initially increased but were not maintained as parturition approached. On d -23, IGF binding protein 3 was increased 65% but was not different among groups by d -7. For groups administered the 5 and 14 mg/d of bST, IGF binding protein 2 was decreased 40%. Administration of bST before parturition increased protein reserves and stimulated milk protein yield for 1 wk but did not alter metabolism of subcutaneous fat. Furthermore, energy balance appeared to be a major regulator of concentrations of IGF binding protein 3 and responsiveness of IGF-I to exogenous somatotropin before parturition.
引用
收藏
页码:1835 / 1847
页数:13
相关论文
共 43 条
[1]  
[Anonymous], 1989, NUTRIENT REQUIREMENT, V5th
[2]  
[Anonymous], CURRENT CONCEPTS ANI
[3]   TISSUE PROTEIN-SYNTHESIS IN LACTATING AND DRY GOATS [J].
BARACOS, VE ;
BRUNBELLUT, J ;
MARIE, M .
BRITISH JOURNAL OF NUTRITION, 1991, 66 (03) :451-465
[4]   INFLUENCE OF NUTRITION AND BOVINE GROWTH-HORMONE (GH) ON HEPATIC GH BINDING, INSULIN-LIKE GROWTH FACTOR-I AND GROWTH OF LAMBS [J].
BASS, JJ ;
OLDHAM, JM ;
HODGKINSON, SC ;
FOWKE, PJ ;
SAUERWEIN, H ;
MOLAN, P ;
BREIER, BH ;
GLUCKMAN, PD .
JOURNAL OF ENDOCRINOLOGY, 1991, 128 (02) :181-186
[5]   BOVINE SOMATOTROPIN - REVIEW OF AN EMERGING ANIMAL TECHNOLOGY [J].
BAUMAN, DE .
JOURNAL OF DAIRY SCIENCE, 1992, 75 (12) :3432-3451
[6]   EFFECT OF BOVINE SOMATOTROPIN ON METABOLISM OF LACTATING DAIRY-COWS - INFLUENCE ON RATES OF IRREVERSIBLE LOSS AND OXIDATION OF GLUCOSE AND NONESTERIFIED FATTY-ACIDS [J].
BAUMAN, DE ;
PEEL, CJ ;
STEINHOUR, WD ;
REYNOLDS, PJ ;
TYRRELL, HF ;
BROWN, ACG ;
HAALAND, GL .
JOURNAL OF NUTRITION, 1988, 118 (08) :1031-1040
[7]   BODY-COMPOSITION OF ANIMALS TREATED WITH PARTITIONING AGENTS - IMPLICATIONS FOR HUMAN HEALTH [J].
BERGEN, WG ;
MERKEL, RA .
FASEB JOURNAL, 1991, 5 (14) :2951-2957
[8]   PROTEIN RESERVES IN THE LACTATING DAIRY COW [J].
BOTTS, RL ;
HEMKEN, RW ;
BULL, LS .
JOURNAL OF DAIRY SCIENCE, 1979, 62 (03) :433-440
[9]   THE SOMATOTROPIC AXIS IN YOUNG STEERS - INFLUENCE OF NUTRITIONAL-STATUS AND OESTRADIOL-17-BETA ON HEPATIC HIGH-AFFINITY AND LOW-AFFINITY SOMATOTROPIC BINDING-SITES [J].
BREIER, BH ;
GLUCKMAN, PD ;
BASS, JJ .
JOURNAL OF ENDOCRINOLOGY, 1988, 116 (02) :169-177
[10]   REGULATION OF INSULIN-LIKE GROWTH FACTOR-BINDING PROTEINS IN SERUM AND LYMPH OF LACTATING COWS BY SOMATOTROPIN [J].
COHICK, WS ;
MCGUIRE, MA ;
CLEMMONS, DR ;
BAUMAN, DE .
ENDOCRINOLOGY, 1992, 130 (03) :1508-1514