The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The objective of this work was to evaluate the effect of the administration of 20 mg of slow liberation bovine somatotropin (rBST) on the dry matter intake and on the digestibility coefficient of dry matter (MS), acid detergent fiber, crude protein, crude energy, nitrogen balance and the daily weight gain in lambs fed diets based on corn silage, sugar cane or hydrolyzed bagasse and concentrate. Twenty-four crossbred lambs, averaging 4-5 months of age and 22 + 2 kg LW, were used. There was no effect of the rBST on the dry matter intake, the digestibilities of crude protein, acid detergent fiber, the nitrogen balance and the daily weight gain of the lambs. The gross energy digestibility was affected by the rBST administration when different forages or periods post hormonal administration were considered, however, the effect of the hormonal action was observed only on the dry matter digestibility of corn silage diets.
Digestibility and live weight gain of lambs fed different forages and administration of recombinant bovine somatotropin (rBST)
Ezequiel,Jane Maria Bertocco and Sancanari,Juliana Borsari Dourado and Sampaio,Alexandre Amstalden Moraes and Kronka,Sérgio Nascimento and Ferro,Jesus Aparecido and Ferro,Maria Inês Tiraboschi and Macari,Marcos and Silva,Fernanda Pereira da. Digestibility and live weight gain of lambs fed different forages and administration of recombinant bovine somatotropin (rBST). R. Bras. Zootec. [online]. 1999, vol.28, 5, [cited 2026-04-24], pp.1102-1108. Available from: <https://rbz.org.br/article/digestibility-and-live-weight-gain-of-lambs-fed-different-forages-and-administration-of-recombinant-bovine-somatotropin-rbst/>. ISSN 1516-3598. https://doi.org/10.1590/S1516-35981999000500028.
Ezequiel,Jane Maria Bertocco; Sancanari,Juliana Borsari Dourado; Sampaio,Alexandre Amstalden Moraes; Kronka,Sérgio Nascimento; Ferro,Jesus Aparecido; Ferro,Maria Inês Tiraboschi; Macari,Marcos; Silva,Fernanda Pereira da. Digestibility and live weight gain of lambs fed different forages and administration of recombinant bovine somatotropin (rBST). R. Bras. Zootec., v.28, 5, p. 1102-1108. Sep. 1999. Available from: <https://rbz.org.br/article/digestibility-and-live-weight-gain-of-lambs-fed-different-forages-and-administration-of-recombinant-bovine-somatotropin-rbst/>. acess on 24 Apr. 2026. https://doi.org/10.1590/S1516-35981999000500028.
Ezequiel,Jane Maria Bertocco, & Sancanari,Juliana Borsari Dourado, & Sampaio,Alexandre Amstalden Moraes, & Kronka,Sérgio Nascimento, & Ferro,Jesus Aparecido, & Ferro,Maria Inês Tiraboschi, & Macari,Marcos, & Silva,Fernanda Pereira da. (1999). Digestibility and live weight gain of lambs fed different forages and administration of recombinant bovine somatotropin (rBST). R. Bras. Zootec., 28(5) , 1102-1108. https://doi.org/10.1590/S1516-35981999000500028.
EzequielJane Maria Bertocco, SancanariJuliana Borsari Dourado, SampaioAlexandre Amstalden Moraes, KronkaSérgio Nascimento, FerroJesus Aparecido, FerroMaria Inês Tiraboschi, MacariMarcos, SilvaFernanda Pereira da. Digestibility and live weight gain of lambs fed different forages and administration of recombinant bovine somatotropin (rBST). R. Bras. Zootec. [Internet]. 1999 Sep [cited 2026 Apr 24]; 28(5): 1102-1108. Available from: https://rbz.org.br/article/digestibility-and-live-weight-gain-of-lambs-fed-different-forages-and-administration-of-recombinant-bovine-somatotropin-rbst/. https://doi.org/10.1590/S1516-35981999000500028.
Figure 6
Differential abundance for the species Faecalibacterium prausnitzii (A) and Megamonas funiformis (B).
