2001
DOI: 10.3168/jds.s0022-0302(01)74715-7
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Effects of Prepartum Somatotropin and Monensin on Metabolism and Production of Periparturient Holstein Dairy Cows

Abstract: Fifty-five multiparous Holstein dairy cows were used to evaluate the singular and combined effects of somatotropin and monensin treatments during the late dry period on postpartum metabolism and production. Treatments were 1) control (C); 2) injection of exogenous bovine somatotropin (bST); 3) TMR top dressed with 300 mg of monensin/day (M); and 4) monensin and somatotropin in combination (bST+M) during the last 28 days before expected parturition. A 500-mg subcutaneous injection of sustained release somatotro… Show more

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Cited by 57 publications
(58 citation statements)
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“…In agreement with these observations, in this study, somatotropin-treated heifers had lower BCS loss and better energy balance related parameters, such as higher insulin and lower NEFA concentrations in the early postpartum period, even though they produced more milk. Vallimont et al (2001) also found a reduction in postpartum NEFA concentration after injecting cows with somatotropin exclusively in the prepartum period, in concert with our current findings.…”
Section: Discussionsupporting
confidence: 91%
“…In agreement with these observations, in this study, somatotropin-treated heifers had lower BCS loss and better energy balance related parameters, such as higher insulin and lower NEFA concentrations in the early postpartum period, even though they produced more milk. Vallimont et al (2001) also found a reduction in postpartum NEFA concentration after injecting cows with somatotropin exclusively in the prepartum period, in concert with our current findings.…”
Section: Discussionsupporting
confidence: 91%
“…Os autores não encontraram diferenças quanto ao EC entre os animais tratados e os animais controle, observando-se valor médio de 3,5. Vallimont et al (2001) observaram resultados semelhantes com suplementação de rbST a partir de 28 dias pré-parto. Hadsell et al (1993) trabalharam com vacas secas tratadas com hormônio de crescimento a partir de oito semanas pré-parto e não observaram diferenças no peso dos animais tratados em relação aos animais controle, registrando-se variações apenas quanto à perda de peso nos animais submetidos à restrição alimentar no mesmo período.…”
Section: Resultsunclassified
“…Outros autores também não encontraram efeito da monensina sódica na produção de leite de bovinos (Sauer et al, 1989;Ramanzim et al, 1997;Beckett et al, 1998;Vallimont et al, 2001 …”
Section: Resultsunclassified
“…O resultado obtido para ECC neste experimento foi semelhante ao encontrado por Van der Merwe et al (2001), ao avaliarem o efeito da monensina sódica na dieta de vacas em lactação sob pastejo. Esses autores relataram que o ECC, apesar de não-significativo, foi superior nos animais suplementados, e que o ganho de peso no período experimental foi superior nas vacas alimentadas com monensina.…”
Section: Total Mozzarella Production (Kg)unclassified
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