Journal of
Cell and Animal Biology

  • Abbreviation: J. Cell Anim. Biol.
  • Language: English
  • ISSN: 1996-0867
  • DOI: 10.5897/JCAB
  • Start Year: 2007
  • Published Articles: 260

Review

Physiological responses of dairy animals to recombinant bovine somatotropin: A review

E. B. Soliman
  • E. B. Soliman
  • Animal Production Department, Faculty of Agriculture, Minia University, Minia, Egypt.
  • Google Scholar
M. A. A. EL-Barody
  • M. A. A. EL-Barody
  • Animal Production Department, Faculty of Agriculture, Minia University, Minia, Egypt.
  • Google Scholar


  •  Accepted: 02 December 2013
  •  Published: 31 January 2014

References

 

Abdel-Rahman HA, Khalil AS, EL-Hamamsy HT, Ezzo OH (2010). The Effect of recombinant bovine somatotropin administration on milk production, some hemato- biochemical parameters and reproductive performance of lactating cows. Global Veterinaria 4:366-373.
 
Acosta DAV, Pfeifer LFM, Schmitt E, Schneider A, Silveira PAS, Jacometo CB, Brauner CC, Rabassa VR, Corre MN, Del Pino FAB (2013). Effect of pre-partum somatotropin injection in late pregnant Holstein heifers with high body condition score on metabolic parameters, resumption of ovulation and milk production. Can. J. Anim. Sci. 93:287-292.
Crossref
 
Austin CL, Schingoethe DJ, Casper DP, Cleale RM (1990). Interaction of bovine somatotropin and nutrition on milk production and composition from dairy cows. J. Dairy Sci. 73:Suppl. 1, 159.
 
Barbano DM, Lynch JM, Bauman DE, Hartnell JF, Hintz RL, Memeth MA (1996). Effect of prolonged-release formulation of n-methionyl bovine somatotrophin (sometribove) on milk composition. J. Dairy Sci. 75:1775.
Crossref
 
Bareille N, Faverdin P, Hay M. (1997). Modification of feed intake response to ß2-agonist by bovine somatotropin in lactating or dry cows. J. dairy Sci. 80:52.
Crossref
 
Bassett NS, Currie MJ, Breier BH, Klempt M, Min SH, McCutcheon SN, MacKenzie DD, Gluckman PD. (1998). The effects of ovine placental lactogen and bovine growth hormone on hepatic and mammary gene expression in lactating sheep. Growth Horm. IGF Res. 8:439-446.
Crossref
 
Bauman DE (1992). Bovine somatotropin: Review of an emerging animal technology. J. Dairy Sci. 75:3432.
Crossref
 
Bauman DE (1999). Bovine somatotropin and lactation: from basic science to commercial application. Domestic Anim. Endocrinol. 17:101-116.
Crossref
 
Becker BA, Johnson HD, Li R, Collier RJ (1990). Effect of farm and stimulated laboratory cold environmental conditions on the performance and physiological responses of lactating dairy cows supplemented with bovine somatotropin (BST). Internat. Biometeoriol. 34:151.
Crossref
 
Beswick NS, Kennelly JJ (2000). Influence of bovine growth hormone and growth hormone-releasing factor on messenger RNA abundance of lipoprotein lipase and stearoyl-CoA desaturase in the bovine mammary gland and adipose tissue. J. Anim. Sci. 78:412.
 
Binelli M, Vanderkool WK, Chapin LT, Vandhaar MJ, Turner JD, Moseley WM, Tucker HA (1995). Comparison of growth hormone-releasing factor and somatotropin: Body growth and lactation of primiparous cows. J. Dairy Sci. 78:2129.
Crossref
 
Blennemann BY, Moon YK, Freake HC (1992). Tissue-specific regulation of fatty acids synthesis by thyroid hormone. Endocrinol. 190:637.
 
Burchard JF, Gallo M, Mckiddie D, Block E. (1990). Effect of bovine somatotropin on milk yield in dairy cows. Brief Communication of the XXIII International Dairy Congress, Montreal, October 8-12. Vol. I.
 
Burton JL, McBride BW, Kennedy BW, Burton JH, Elsasser TH, Woodward B (1990a). rbST and the bovine immune system. Brief Communication of the XXIII International Dairy Congress, Montreal, October 8-12. Vol. I, 80.
 
Burton JL, McBride BW, Burton JH, Eggert RG (1990b). Health and reproductive performance of dairy cows treated for up to two consecutive lactations with bovine somatotropin. J. Dairy Sci. 73:3258.
Crossref
 
Capper JL, Casta-eda-Gutiérrez E, Cady RA, Bauman DA (2008). The environmental impact of recombinant bovine somatotropin (rbST) use in dairy production. PNAS, 105:9668-9673.
Crossref
 
Capuco AV, Keys JE, Smith J.J. (1989). Somatotropin increases thyroxine-5'-monodeiodinase activity in lactating mammary tissue of the cow. J. Endocrinolgy 121:205.
Crossref
 
Carstens GE, Glaser DE, Byers FM, Greene LW, Lunt DK (1997). Effects of bovine somatotropin treatment and intermitten growth pattern on mammary gland development in heifers. J. Anim. Sci. 75:2378-2388.
 
Chadio S (2009). Effects of recombinant bovine somatotropin administration to lactating goats. Small Rumin. Res., 35:263-269.
Crossref
 
Chaiyabutr N, Boonsanit D, Chanpongsang S (2011). Effects of cooling and exogenous bovine somatotropin on hematological and biochemical parameters at different stages of lactation of crossbred Holstein Friesian cow in the tropics. Asian-Aust. J. Anim. Sci. 24:230-238.
 
Chaiyabutr N, S Thammacharoen, S. Komolvanich, S. Chanpongsang. (2007). Effects of long-term exogenous bovine somatotropin on water metabolism and milk yield in crossbred Holstein cattle. J. Agric. Sci. (Cambridge) 145:173-184.
Crossref
 
Chalupa W, Vecchiarelli B, Galligan DT, Verguson JD, Baird LS, Hemken RW, Harmon RJ, Soderholm CG, Otterby DE, Annexstad RJ, Linn JG, Hansen WP, Ehle FR, Palmquist DL, Eggert RG (1996). Responses of dairy cows supplemented with somatotropin during weeks 5 through 43 of lactation. J. Dairy Sci. 79:800.
Crossref
 
Chase CC Jr, Kirby CJ, Hammond AC, Olson TA, MC Lucy (1998). Pattern of ovarian growth with a growth hormone receptor deficiency. J. Anim. Sci. 76:212.
 
Cole WJ, Eppard PJ, Boysen BG, Madsen KS, Sorbet RH, Miller MA, Hintz RL, White TC, Ribelin WE, Hammond BG, Collier RJ, Lanza GM (1992). Responses of dairy cows to high doses of a sustained-release bovine somatotropin administered during two lactations. J. Dairy Sci. 75:111.
Crossref
 
Collier RJ, Miller MA, McLaughlin CL, Johnson HD, Baile CA (2008). Effects of recombinant bovine somatotropin (rbST) and season on plasma and milk insulin-like growth factors I (IGF-I) and II (IGF-II) in lactating dairy cows. Domestic Anim. Endocrionol. 35:16-23.
Crossref
 
Dahl GE, Chapin LT, Allen MS, Moseley WM, Tuker HA (1993). Galactopoietic effects of recombinant somatotropin and growth hormone-releasing factor in dairy cows. J. Dairy Sci. 76:1550-1557.
Crossref
 
Davis JJ, Sahlu T, Puchala R, Herselman MJ, Fernandez JM, McCann JP, Coleman S.W. (1999). The effect of bovine somatotropin treatment on production of lactating Angora does with kids. J. Anim. Sci. 77:17.
 
De La Sota RL, Lucy MC, Staples CR, Thacher WW (1993). Effects of recombinant bovine somatotropin (sometribove) on ovarian function in lactating and nonlactating dairy cows. J. Dairy Sci. 76:1002-1013.
Crossref
 
Downer JV, Patterson DL, Rock DW, Chalupa WV, Cleale RM, Firkins JL, Lynch GL, Clark JH, Brodie BO, Jenny BF, De Gregorie R (1993). Dose titration of sustained-release recombinant bovine somatotropin in lactating dairy cows. J. Dairy Sci. 76:1125.
Crossref
 
El-Gohary E S, Abdel-Khalek EA, Ashmawy TAM, Teleb DF, Sallam A A (2011). Effect of recompinant bovine somatotropin (rbST) on growth performance and puberty incidence of male and female lambs born from rbST treated ewes. Egyptian J. Sheep Goat Sci. 6:47 -57.
 
Esteban E, Kass PH, Weaver LD, Rowe JD, Holmberg CA, Franti CE, Fred Troutt H. (1994). Reproductive performance in high producing cows treated with recombinant bovine somatotropin. J. Dairy Sci. 77:3371.
Crossref
 
Fernandez N, Molina M P, Balasch S, Torres A, and Adriaens F. (2001). Bovine somatotropin dose titration in lactating dairy ewes. 3. Treatment interval. J. Dairy Sci. 84:2170-2176.
Crossref
 
Fernandez N, Rodriguez M, Peris C, Barceld M, Molina MP, Torres A, Adriaens F (1995). Bovine somatotropin titration in lactating dairy ewes. 1. Milk yield and milk composition. J. Dairy Sci. 78:1073.
Crossref
 
Flores R, Looper ML, Rorie RW, Lamb MA, Reiter ST, Hallford DM, Krieder DL, Rosenkrans CF (2007). Influence of body condition and bovine somatotropin on estrous behavior, reproductive performance, and concentrations of serum somatotropin and plasma fatty acids in postpartum Brahman-influenced cows. J. Anim. Sci. 85:1318.
Crossref
 
French N, Boer G, Kennelly JJ, Boer G. (1990). Effects of feeding frequency and exogenous somatotropin on lipolysis, hormone profils and milk production in dairy cows. J. Dairy Sci. 73:1552.
Crossref
 
Gabr Sh A (2013). Effect of rbST administration on pubertal age and some blood parameters in Friesian heifers. Egyptian J. Anim. Prod. 50:122-131.
 
Gallo GF, Block E (1990). Effects of recombinant bovine somatotropin in nutritional status and liver function of lactating dairy cows. J. Dairy Sci. 73:3276.
Crossref

 

Gibson JP, M. Muelen Van der, McBride BW, Burton JH (1992). The effects of genetic and phenotypic production potential on response to recombinant bovine somatotropin. J. Dairy Sci. 75:878.
Crossref
 
Gluckman PD, Breier BH, Davis SR (1987). Physiology of the somatotropic axis with particular reference to the ruminant. J. Dairy Sci. 70:442.
Crossref
 
Gong J, Baxter G, Barmley T, Webb R (1997). Enhancement of ovarian follicle development in heifers by treatment with rbST: A dose response study. J. Reprod. Fertil. 110:91.
Crossref
 
Gong JG, McBride D, Bramley TA, Webb R (1993). Effects of recombinant bovine somatotropin, insulin like growth factor-I and insulin on the proliferation of bovine granulose cells invitro. J. Endocrinol. 139:67
Crossref
 
Gong JG, McBride D, Bramley TA, Webb R (1994). Effects of recombinant bovine somatotropin, insulin like growth factor-I and insulin on bovine granulosa cell steroid genesis in vitro. J. Endocrinol. 143:157.
Crossref
 
Gulay MS, Hayen MJ, Teixeira LC, Wilcox CJ, Head HH (2003). Responses of Holstein cows to a low dose of somatotropin (bST) prepartum and postpartum. J. Dairy Sci. 86:3195-3205.
Crossref
 
Hadley ME (1992). Endocrinology. 3rd Ed. Prentic Hall Interbational Inc. Englewood Cliffs, New Jersey. USA.
 
Huber JT, Sullivan JL, Willman S, Arana M, Denigan M, De Corte C, Hoffman RG, Hartnell GF (1991). Response of Holstein cows to biweekly sometribove (SB) injections for 4 consecutive lactations. J. Dairy Sci. 74 (Suppl. 1):211.
 
James IJ, Osinowo OA, Smith O F, Bemji MN, Rekwot PI (2010). Effects of bovine somatotropin on the pattern of milk yield within and between injection intervals in west African dwarf goats. J. Agric. Sci. Environ. 10:86-97.
 
Johnson HD, Li R, Manalu W, Spencer-Johnson KJ, Becker BA, Coiler RJ, Baile CA (1991). Effects of somatotrophin on milk yield and physiological responses during summer farm and hot laboratory conditions. J. Dairy Sci. 74:1250.
Crossref
 
Kahl S, Capuco AV, Binelli M. Vanderkool WK, Tucker HA, Moseley WM (1995). Comparison of growth hormone-releasing factor and somatotropin: Thyroid status of lactating primiparous cows. J. Dairy Sci. 78:2149.
Crossref
 
Kannan CR (1987). The pituitary gland. Plenum Publishing Corp. New York. Crossref
 
Kazmar GW, Canfield RC, Bean B (1990). Plasma growth hormone and prolactin concentrations in young dairy sires before and after 1 24 h fast. J. Dairy Sci. 73:3112.
Crossref
 
Knight CH (1992). Milk yield responses to sequential treatments with recombinant bovine somatotropin and frequent milking in lactating goats. J. Dairy Res. 59:115.
Crossref
 
Langhout DJ, Spicer LJ, Geisert RD (1991). Development of a culture system for bovine granulosa cells effects of growth hormone, estradiol and gonadotropins on cell proliferation, steroidgenesis and protein synthesis. J. Anim. Sci. 69:3321.
View
 
Laurent F, Vignon B, Coomants D, Wilkinson J Bonnel A (1992). Influence of bovine somatotropin on the composition and manufacturing properties of milk. J. Dairy Sci. 75:2226.
Crossref
 
Lucy MC, Staples CR, Michel FN, Thacher WW (1991). Energy balance and size and number of ovarian follicles detected by ultrasonography in early postpartum cows. J. Dairy Sci. 74:473.
Crossref
 
Ludwig SKJ, Smits NGE, Van der Veer G, Bremer MGEG, Nielen MWF (2012). Multiple Protein biomarker assessment for recombinant bovine somatotropin (rbST) abuse in cattle. PLOS ONE 7 (12):e52917.
Crossref
 
Madakaze CR, Phipps RH, Hard DL (1990). Preliminary results on the influence of bovine somatotropin (sometribove) on milk production in Zimbabwe. J. Dairy Sci. 73 (Suppl. 1):161.
 
Mattos WA, AV Pires, de Varis VP, Doque JD, Madsen KS (1989). The effect of sometribove (recombinant mrthyionyl bovine somatotropin) on milk yields and milk composition in lactating dairy cows in Brazil. J.Daiiry Sci. 72 (Suppl. 1):452.
 
McDowell GH, Leenanuruksa HD, Nimsup P, Gooden JM, Van der Walt CJ, Smithard R. (1988). Short-term effects of exogenous growth hormone: effects on milk yield and composition, plasma hormones and metabolites. Aust. J. Biol. Sci. 41:279.
Pubmed
 
McGuffy RK, Basson RP, Spike TE (1991). Lactation response and body composition of cows receiving somatotrpin and three ratios of forage to concentrate. J. Dairy Sci. 74:3095.
Crossref
 
McGuire MA, Bauman DE, Miller MA, Hartnell GF (1992). Responses of somatomedins (IGF-I and IGF-II) in lactating cows to variations in dietary energy and protein and treatrment with recombinant n-Methionyl bovine somatotropin. J. Nutr. 122:128.
Pubmed
 
Mellado M, Antonio-Chirino E, Meza-Herrera C, Veliz FG, Arevalo JR, Mellado J, Santiago A (2011). Effect of lactation number, year, and season of initiation of lactation on milk yield of cows hormonally induced into lactation and treated with recombinant bovine somatotropin. J Dairy Sci. 94:4524-4530. Crossref
 
Moallem U, Folman Y, Sklan D (2000). Effects of sometribove and dietary calcium soaps of fatty acids in early lactation on milk production, dry matter intake, and energy balance of high-yielding dairy cows. J. Dairy Sci. 83:2085.
Crossref
 
Molento CF, Block E, Cue RI, Petitclere D (2002). Effects of insulin, recombinant bovine somatotropin, and their interaction on insulin-like growth factor-I and milk protein production in dairy cows. J. Dairy Sci. 85(4):738-747.
Crossref
 
Moreira F, Badinga L, Burnley C, Thatcher WW (2002). Bovine somatotropin increases embryonic development in superovulated cows and improves post-transfer pregnancy rates when given to lactating recipient cows. Theriogenology 57, 1371-1387.
Crossref
 
Nielsen MO (1988). Effect of recombinantly derived bovine somatotropin on mammary gland synthetic capacity in lactating goats. J. Anim. Physiol. 59A:263-269.
Crossref
 
Nour El-Din ANM, El-Zarkouny SZ, Ghobashy H, Abdel-Gawad EI and Kesler DJ (2009). Growth, haematological and biochemical responses of growing lambs injected with growth hormone and supplemented with calcium soaps of fatty acids. South Afri. J. Anim. Sci. 2009, 39:65-68.
 
Nytes AJ, Combs DK, Shook GE, Shaver RD, Cleale RM (1990). response to recombinant bovine somatotropin (rbST) in dairy cows with different genetic merit for milk production. J. Dairy Sci. 73:784.
Crossref
 
Ocampo LC, Morales M, Basurto HC, Auro AA (1995):Effect of somatotropin on milk production of cross-bred dairy cows in the tropics. Vet. Mexico 26:137.
 
Oldenbroek JK, Garssen GJ (1988). Effect of treatment of bST on milk production, feed intake and metabolism of dairy cows of three different breeds. Onderzoek bovine somatotropin. 23:15.
 
Oldenbroek JK, Garssen GJ (1990). Effect of bovine somatotropin on milk production and metabolism of dairy cows during three successive years in trials at the Dutch Cattle Breeding Research Institute. Tijdschrift voor Die rgneeskunde. 115:613.
 
Pell AN, Tsang DS, Howlett BA, Huyler MT, Messerole VK, Samules WA, Hartnell GF, Hintz RL (1992). Nutrition, feeding and calves-effects of a prolonged-release formulation of sometribove (n-methionylen bovine somatotropin) on Jersey cows. J. Dairy Sci. 5:3416-3431.
Crossref
 
Phillips CJC (1996). Progress in dairy science. Pages 59-85. In: The effect of bovine somatotrophin on dairy production, cow health and economics. Cab International. Wallingford, Oxon, UK./*-Phipps RH, Adriaens F, Hard DL, de Kerchove G, Weller RF, Kerchove De G (1996). Use of bovine somatotropin for milk production: The effect of time of treatment initiation on milk production of Holstein/-Phipps RH, Madakadze C, Mutsvangwa T, Hard DL, Kerchove G (1991). Use of bovine somatotropin in the tropics: The effect of sometribove on milk production of Bos indicus, dairy crossbred and Bos Taurus cows in Zimbabwe. J. Agric Sci. 117:257.
 
Phipps RH, Weller RF, Craven N, Peel CJ (1990). Use of prolonged-release bovine somatotropin for milk production in British Friesian dairy cows. 1. Effect on intake, milk production and feed efficiency in two conscutive lacatations of treatment. J. Agric Sci. 115:95.
Crossref
 
Prosser CG, Fleet IR, Corps AN, Froesch ER, Heap RB (1990). Increase in milk secretion and mammary blood flow by intra-arterial infusion by insulin-like growth factor-I into the mammary gland of the goat. J. Endocrinol. 126:437.
Crossref
 
Puchala R, Prieto I, Banskalieva V, Goetsch AL, Lachica M, Sahlu T (2001). Effects of bovine somatotropin and thyroid hormone status on hormone levels, bod weight gain and mohair fiber growth of Angora goats. J. Anim. Sci. 79:2913.
Pubmed
 
Pulina G, A Nudda, Pietro N, Macciotta P, Battacone G, Rassu SPG, and Cannas A (2007). Non-nutritional factors affecting lactation persistency in dairy ewes: a review. Ital. J. Anim. Sci. 6:115-141.
 
Qudus M A, Ahmad N, Javed K, Abdullah M, Jabbar M A, Omer M O, Iqbal Z M, and Ahmad I (2013). Effect of recombinant bovine somatotropin on milk production and composition of lactating Beetal goats. The J. Anim. Plant Sci. 23:26-30.
 
Rajamahendran R, Desbottes S, Shelford JA, Peterson RG, Kennelly JJ (1989). Effect of recombinant bovine somatotropin (rbST) on milk production and reproduction performance of dairy cows. J. Dairy Sci. 72; Suppl. 1:444.
 
Requena R, Balasch S, Peris C, Rodríguez M and Fernández N (2010). Dose response of lactating dairy ewes during suckling and milking to bovine somatotropin. J. Anim. Sci. 88:3136-3144.
Crossref
 
Sallam SMA, Nasser MEA, Yousef MI (2005). Effect of recombinant bovine somatotropin administration on milk production, composition and some hemato-biochemical parameters of lactating goats. Egyptian J. Anim. Prod. 42(1):33-46.
 
Santos JEP, Huber JT, Theurer CB, Nussio LG, Nussio CB, Tarazon M, Lima-Filho RO (1999). Performance and nutrional digestibility by dairy cows treated with bovine somatotropin and fed diets with steam-flaked sorghum or steam-rolled corn during early lactation. J. Dairy Sci. 82:404-.411
Crossref
 
Schwab W, Kerchgessner M (1990). Recombinant bovine somatotropin (bGH) on nutrient digestibilty of dairy cows. 1. Influence of bGH on energy and protein metabolism of dairy cows at different stages of lactation. J. Anim. Physiol. and Nutr. 64:84.
Crossref
 
Sechen SJ, Bauman DE, Tyrrell HF, Reynolds P.J. (1989a). Effect of somatotropin on kinetics on nonestrified fatty acids and partition of energy, carbon, nitrogen in lactating dairy cows J. Dairy Sci. 72:59.
Crossref
 
Sechen SJ, McCutcheon SN, Bauman D.E. (1989b). Response to metabolic challenges in early lactation dairy cows during treatment with bovine somatotropin. Domest. Anim. Endocrinol. 6:141.
Crossref
 
Settivarin RS, Spain JN, Ellersieck MR, Byatt JC, Collier RJ, Spires DE (2007). Relationship of thermal status to productivity in heat-stressed dairy cows given recombinant bovine somatotropin. J. Dairy Sci. 90:1265-1280.
Crossref
 
Sharma BK, Vanderhaar MJ, Ames NK (1994). Expression of insulin-like growth factor-I in cows at different stages of lactation and in late lactation cows treated with somatotropin. J. Dairy Sci. 77:2232.
Crossref
 
Smits NGE, Bremer MGEG, Ludwig SKJ, Nielen MWF (2012). Development of a flow cytometric immunoassay for recombinant bovine somatotropin-induced antibodies in serum of dairy cows. Drug Test Analysis 4:362–367.
Crossref
 
Soderholm CG, Otterby DE, Linn JG, Ehle FR, Wheaton JE, Hansen WP, Annexstad RJ (1988). Effects of recombinant bovine somatotropin on milk production, body composition and physiological parameters. J. Dairy Sci. 71:355.
Crossref
 
Spicer LJ, Stewart RE (1996). Interaction among bovine somatotropin, insulin an gonadotropins on steroid production by bovine granulosa and thecal cells. J.Dairy Sci. 79:813.
Crossref
 
Staples CR, Head HH, Darden DE (1988). Short-term administration of bovine somatotropin to lactating dairy cows in a subtropical environment. J. Dairy Sci. 71:3274.
Crossref
 
Stelwagen K, Grieve DG, Walton JS, Ball JL, McBride BW (1993). Effect of prepartum bovine somatotropin in primigravid ewes on mammogenesis, milk production and hormone concentrations. J. Dairy Sci. 76:992.
Crossref
 
Thammacharoen S, Komolvanich S, Chanpongsang S, Chaiyabutr N (2011). Respiratory hypocapnia at different stages of lactation during long-term exogenous bovine somatotropin in crossbred Holstein cattle in the tropic. Thai J. Vet. Med. 4:245-250.
 
Vanderkool WK, Vandhaar MJ, Sharma BK, Binelli M, Tucker HA, Akers RM, Moseley WM (1995). Comparison of growth hormone-releasing factor and somatotropin: The somatotropic axis in lactating primiparous cows. J. Dairy Sci. 78:2140.
Crossref
 
Weber WJ, Wallace CR, Hansen LB, Chester-Jones H, Crooker BA (2007). Effects of genetic selection for milk yield on somatotropin, Insulin-like growth factor-I and placental lactogen in Holstein cows. J. Dairy Sci. 90:3314.
Crossref
 
Weller RF, Phipps RH, Craven N, Peel CJ (1990). Use of a prolonged-release bovine somatotrophin for milk production in British Friesian dairy cows. J. Agric. Sci. 115:105.
Crossref
 
West JW, Bondari K, Johnson Jr. JC (1990). Effect of bovine somatotropin on milk yield and composition, body weight and condition score of Holstien and Jersey cows. J. Dairy Sci. 73:1062.
Crossref
 
White TC, Madsen DS, Hintz RL, Sorbert RH, Colier RJ, Hard DL, Hartnell GF, Samules WA, Kerchove G, Adrianens F, Craven N, Bauman DE, Bertrand G, Bruneau PH, Gravert GO, Head HH, Huber JT, Lamb RC, Palmer C, Pell AN, Phipps R, Weller R, Riva G, Rijpkema Y, Skarda J, Vedeau F, Wollny C. (1994). Clinical mastitis in cows treated with sometribove (recombinant bovine somatotropin) and its relationship to milk yield. J. Dairy Sci. 77:2249.
Crossref
 
Windsryg MD, Arambel MJ, Kent BA, Walters JL (1991). Effect of sometribove on rumen fermentation, rate of passage, digestibility, and milk production responses in dairy cows. J. Dairy Sci. 74:3518.
Crossref
 
Zhao X, Burton JH, McBride BW (1992). Lactation, health and reproduction of dairy cows receiving daily injections of a sustained-release somatotropin. J. Dairy Sci. 75:3122.
Crossref
 
Zinn S, Kazmer GW, Paquin-Platts DD (1993). Milk yield and composition response to a sustained-release formulation of bovine somatotropin in lactating dairy cows. J. Dairy Sci. 76 (Suppl.1):241 (Abst.).
 
Zoa-Mboe A, Head HH, Bachman KC, Baccari Jr F, CJ Wilcox (1989). Effects of bovine somatotropin on milk yield and composition, dry matter intake, and some physiological functions of Holstein cows during heat stress. J. Dairy Sci. 72:907-916.
Crossref