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Dergiler / Turkish Journal of Veterinary and Animal Sciences / 2016 / Cilt: 40 - Sayı: 5

Effects of combining recombinant bovine growth hormone and anabolic implants on growth performance and dietary energetics of Holstein bull calves fed finishing diets

Alejandro PLASCENCIA
Maria LOPEZ-SOTO
Carolina MANRIQUEZ PUJOL
Jesus URIAS-ESTRADA
Alberto BARRERAS SERRANO
Jose CALDERON-CORTES
Gilberto LOPEZ-VALENCIA
Francisco MONGE-NAVARRO
Victor GONZALEZ-VIZCARRA
Sayfa
671–674
Yayın Tarihi
2022-11-05
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

The combinations of exogenous bovine somatotropin and anabolic implants did not enhance the growth performance or dietary energy of intact Holstein cattle fed a high-energy finishing diet.

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Amaç & Hipotez:Twenty-one Holstein bull calves (368 ± 5.2 kg) were used in order to evaluate the effects of combining recombinant bovine growth hormone (bST) and anabolic implants on growth performance and dietary energetics.
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Temel Bulgular & Veri:Steers were assigned (7 repetitions/treatment) to individual pens (16 m2) equipped with automatic waterers and 1.2 m fence-line feed bunks.
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Sonuç & Katkı:The combinations of exogenous bovine somatotropin and anabolic implants did not enhance the growth performance or dietary energy of intact Holstein cattle fed a high-energy finishing diet.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Abstract

Twenty-one Holstein bull calves (368 ± 5.2 kg) were used in order to evaluate the effects of combining recombinant bovine growth hormone (bST) and anabolic implants on growth performance and dietary energetics. Steers were assigned (7 repetitions/treatment) to individual pens (16 m2) equipped with automatic waterers and 1.2 m fence-line feed bunks. The experiment lasted 56 days. Treatments were: 1) no bST, no implant; 2) implant; and 3) bST + implant. Compared to implanted cattle, the combination of exogenous bovine somatotropin and anabolic implants did not enhance growth performance or observed dietary energy. Compared to nonimplanted cattle, anabolic implants increased dry matter intake (DMI, 8.3%), average daily gain (ADG, 18.5%), gain efficiency (ADG:DMI; 7.9%), dietary net energy (6%), and apparent energy retention per unit of DMI (7%). Implantation reduced the estimated maintenance coefficients of intact Holstein calves by around 17%. The combinations of exogenous bovine somatotropin and anabolic implants did not enhance the growth performance or dietary energy of intact Holstein cattle fed a high-energy finishing diet.

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Bu Makaleye Atıf Yap

PLASCENCIA, A., LOPEZ-SOTO, M., PUJOL, C. M., URIAS-ESTRADA, J., SERRANO, A. B., CALDERON-CORTES, J., LOPEZ-VALENCIA, G., MONGE-NAVARRO, F., GONZALEZ-VIZCARRA, V. (2022). Effects of combining recombinant bovine growth hormone and anabolic implants on growth performance and dietary energetics of Holstein bull calves fed finishing diets. Turkish Journal of Veterinary and Animal Sciences, Cilt: 40 - Sayı: 5, 671–674. https://ajindex.com/articles/615139

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Kaynakça (15)

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