Somatotropina bovina recombinante (rBST) sobre o desempenho e a digestibilidade aparente de novilhas (½ Nelore x ½ Red Angus) em confinamento

Nascimento, Willian Gonçalves do; Prado, Ivanor Nunes do; Rigolon, Luiz Paulo; Marqués, Jair de Araújo; Wada, Fabio Yoshimi; Matsishita, Makoto; Scomparin, Vanderlei Xavier

doi:10.1590/s1516-35982003000200026

Cited by 5 publications

(4 citation statements)

References 18 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The average carcass dressing was 51.8%. A carcass dressing of about 52% can be considered normal for heifers slaughtered at 24 months, as observed in other studies of heifers slaughtered of a similar weight (Kazama et al, 2008;Marques et al, 2010;Nascimento et al, 2003).…”

Section: Resultssupporting

confidence: 54%

“…-June, 2015 crossbreeding and finished in a feedlot can be superior to 1.50 kg day -1 (Macedo et al, 2007;Marques et al, 2000). The feed efficiency of heifers finished in a feedlot may vary from between 6 and 8 kg of dry matter for a gain of 1 kg of body weight, which is close to the observed efficiency of males finished in feedlot (Farias et al, 2012;Marques et al, 2000;Nascimento et al, 2003). In addition, heifers have a better quality of meat compared to the steers and bulls finished on pasture or feedlot (Kazama et al, 2008;Macedo et al, 2007;Rotta et al, 2009) due to their increased sexual precocity.…”

Section: Introductionmentioning

confidence: 70%

“…In Brazil, the heifers slaughtered represent approximatively 5% of the cattle slaughtered for beef production (ANUALPEC, 2014). The heifers finished in feedlot are slaughtered at between 20 and 24 months, with between 180 to 210 kg carcass weight (Marques et al, 2010;Nascimento et al, 2003;Prado et al, 2000a;b). The average daily gain of these heifers varies between 0.70 and 1.20 kg and the hot carcass dressing is from 50 to 54% (Farias et al, 2012;Marques et al, 2000;Nascimento et al, 2003;Prado et al, 2000a;b).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

<b>Slaughter weight did not alter carcass characteristics and meat quality of crossbred heifers supplemented and finished in a pasture system

Andreotti

Gusman

Ramos

et al. 2015

Acta Sci. Anim. Sci.

View full text Add to dashboard Cite

This work was carried out to evaluate the animal performance, carcass characteristics and meat quality of crossbred heifers slaughtered at three different body weights. The heifers were slaughtered with 330 (Light), 360 (Medium) and 400 (Heavy) kg body weight. The final weight, average daily gain and carcass weight were greater for HEA heifers, intermediate for MED heifers and lower for LIG heifers. However, carcass dressing and pH were similar for the three heifers groups. Dripping loss, dissection loss and the muscle, fat and bone percentages on the 6th rib did not alter by slaughter weight. Slaughter weight did not affect the colour, shear force and lipid oxidation of meat. In conclusion, heavy heifers finished in pasture and that were concentrate-supplemented had better animal performance; however, the carcass characteristics and meat quality were similar for the three heifers groups.Peso de abate não alterou as características de carcaça e qualidade da carne de novilhas mestiças terminadas a pasto com suplementação RESUMO. Este trabalho foi realizado para avaliar o desempenho animal e características da carcaça e da carne de novilhas mestiças abatidas com três diferentes pesos vivos. As novilhas foram abatidas com 330 kg (LEV), 360 kg (MED) e 400 kg (PES). O peso vivo final, ganho médio diário e peso de carcaça foram superiores para as novilhas PES, intermediário para as novilhas MED e inferiores para as novilhas LEV. No entanto, o rendimento de carcaça e pH foram semelhantes para os três grupos de animais. As perdas por gotejamento, dissecação e as percentagens de músculo, gordura e ossos na 6ª costela não foram alteradas pelos três pesos de abate. Da mesma forma, o peso de abate não teve efeito sobre a coloração, força de cisalhamento e oxidação lipídica da carne. Em conclusão, novilhas mais pesadas terminadas em pastagem e suplementadas com concentrado apresentaram melhor desempeno animal; todavia, as características de carcaça e qualidade da carne não foram alteradas.Palavras-chave: análise instrumental, peso de abate, novilhas, qualidade da carne.

show abstract

Section: Resultssupporting

confidence: 54%

Section: Introductionmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

<b>Slaughter weight did not alter carcass characteristics and meat quality of crossbred heifers supplemented and finished in a pasture system

Andreotti

Gusman

Ramos

et al. 2015

Acta Sci. Anim. Sci.

View full text Add to dashboard Cite

show abstract

“…MATOS (1998) relata em sua pesquisa que nenhum aumento da incidência de mastite e debilidade dos animais foi observado diferindo. Resultados semelhantes em bovinos foram observados por (Nascimento et al 2003) ao avaliarem ganho de peso, conversão alimentar e rendimento de carcaça de novilhas mestiças de Nelore e Red Angus tratadas tanto com dose única de 250 mg de rBST quanto tratadas quinzenalmente.…”

Section: Discussionunclassified

Avaliação das características clínicas, morfométricas e do perfil bioquímico de cordeiros tratados com rBST (Somatotropina Bovina Recombinante)

Sant’ana¹,

Santos²,

Rodrigues³

et al. 2015

Pubvet

View full text Add to dashboard Cite

Professor(a) doutor(a) da Universidade Guarulhos 2 Médico(a) veterinário(a) autônomo(a) Resumo A somatotropina é um hormônio conhecido por efeitos no metabolismo geral, com atuação nos tecidos moles e ósseos, na retenção de nitrogênio, e na produção de leite. Neste estudo foram utilizados 47 cordeiros da raça Santa Inês, sendo que 27 foram tratados com 2 aplicações de 250 mg de BOOSTIN ® em torno dos 35 e 55 dias de idade e foram comparados a 20 cordeiros que receberam placebo. Avaliações clínicas, morfométricas, bioquímicas e o peso foram realizadas antes e quinzenalmente após o tratamento. De acordo com os resultados concluiu-se que o protocolo não influenciou o peso dos animais nem mesmo as medidas morfométricas e perfil bioquímico. O uso da somatotropina não causou qualquer efeito adverso na saúde dos cordeiros bem como alterações no local da aplicação.

show abstract

Is bovine somatotropin an alternative strategy to overcome the detrimental effects of high-gain diets on prepubertal Holstein × Gyr heifers?

Sguizzato,

Guimarães,

Santos

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

Feeding high-gain diets and an inadequate energy and protein ratio during pre-puberty may lead to impaired growth and mammary gland development of heifers. Thus, frequent application of bovine somatotropin (bST) may prevent future losses in productivity, improve mammary development and animal performance. We aimed to evaluate the effects of bST on digestibility, performance, blood metabolites, mammary gland development, and carcass composition of high-performance prepubertal Holstein × Gyr heifers. Thirty-four Holstein × Gyr heifers with an average initial body weight of 218 ± 49 kg and 14 ± 4 months of age were submitted to an 84-day trial evaluating the effects of no bST or bST injections. Treatments were randomly assigned to each animal within one of the tree blocks. The bST did not influence digestibility or performance parameters. Regarding blood results, IGF1 concentration presented an interaction between treatment and day, where bST heifers had the highest IGF1 concentration. Heifers receiving bST also showed increased ribeye area; however, only an experimental day effect for backfat thickness was observed, with greater accumulation of carcass fat on day 84. Heifers receiving bST had lower pixels/mm² on parenchyma, characteristic of greater parenchymal tissue. Moreover, heifers on bST treatment also had reduced pixels/mm2, characteristic of reduced fat pad tissue. Lastly, bST injections did not influence liver and muscle gene expression, nor most genes evaluated in mammary gland tissue, except for IGFBP3 expression, which was greater for bST heifers. In summary, we confirm the efficacy of bST injections to overcome the detrimental effects of high-gain diets on mammary gland growth and to improve lean carcass gain of prepubertal Holstein × Gyr heifers.

show abstract

Somatotropina bovina recombinante (rBST) sobre o desempenho e a digestibilidade aparente de novilhas (½ Nelore x ½ Red Angus) em confinamento

Cited by 5 publications

References 18 publications

<b>Slaughter weight did not alter carcass characteristics and meat quality of crossbred heifers supplemented and finished in a pasture system

<b>Slaughter weight did not alter carcass characteristics and meat quality of crossbred heifers supplemented and finished in a pasture system

Avaliação das características clínicas, morfométricas e do perfil bioquímico de cordeiros tratados com rBST (Somatotropina Bovina Recombinante)

Is bovine somatotropin an alternative strategy to overcome the detrimental effects of high-gain diets on prepubertal Holstein × Gyr heifers?

Contact Info

Product

Resources

About