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.
This work was carried out to isolate, characterize and identify Lactobacillusacidophilus strain from calves feces with 1- 3 days of age, collected directly from the rectum. The following tests for the characterization of the isolates were done: cellular morphology, gran test, catalase, gas production from glucose, growth at 15 and 45ºC, Litmus milk reduction, growth in culture medium with 4 and 8% sodium chloride, arginine hydrolysis, nitrate reduction and fermentation of several “carbohydrates”. From a total of 526 initial isolates, 12 (2.28%) strain of Lactobacillusacidophillus were identified.
Isolation of Lactobacillusacidophilus from calves feces
Chaves,Antônio Hamilton and Silva,José Fernando Coelho da and Pinheiro,Adão José Rezende and Campos,Oriel Fajardo de and Filho,Sebastião de Campos Valadares. Isolation of Lactobacillusacidophilus from calves feces. R. Bras. Zootec. [online]. 1999, vol.28, 5, [cited 2026-05-16], pp.1086-1092. Available from: <https://rbz.org.br/article/isolation-of-lactobacillusacidophilus-from-calves-feces/>. ISSN 1516-3598. https://doi.org/10.1590/S1516-35981999000500026.
Chaves,Antônio Hamilton; Silva,José Fernando Coelho da; Pinheiro,Adão José Rezende; Campos,Oriel Fajardo de; Filho,Sebastião de Campos Valadares. Isolation of Lactobacillusacidophilus from calves feces. R. Bras. Zootec., v.28, 5, p. 1086-1092. Sep. 1999. Available from: <https://rbz.org.br/article/isolation-of-lactobacillusacidophilus-from-calves-feces/>. acess on 16 May. 2026. https://doi.org/10.1590/S1516-35981999000500026.
Chaves,Antônio Hamilton, & Silva,José Fernando Coelho da, & Pinheiro,Adão José Rezende, & Campos,Oriel Fajardo de, & Filho,Sebastião de Campos Valadares. (1999). Isolation of Lactobacillusacidophilus from calves feces. R. Bras. Zootec., 28(5) , 1086-1092. https://doi.org/10.1590/S1516-35981999000500026.
ChavesAntônio Hamilton, SilvaJosé Fernando Coelho da, PinheiroAdão José Rezende, CamposOriel Fajardo de, FilhoSebastião de Campos Valadares. Isolation of Lactobacillusacidophilus from calves feces. R. Bras. Zootec. [Internet]. 1999 Sep [cited 2026 May 16]; 28(5): 1086-1092. Available from: https://rbz.org.br/article/isolation-of-lactobacillusacidophilus-from-calves-feces/. https://doi.org/10.1590/S1516-35981999000500026.
Figure 5
Dendrogram constructed using the UPGMA algorithm based on allele distances of each of the 74 individuals analyzed with five microsatellite markers.
The individuals belong to four sampling zones: (1) dam zone, (2) Huaynamota River zone, (3) central reservoir zone, and (4) southern reservoir zone.
