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.
Sixty two mares were randomly assigned to two experimental group, according to two intervals between the penultimate and the ultimate artificial insemination (48 or 72h). The mares were teased and inseminated on monday, wednesday and friday, when a follicle size was equal or greater than 3.0 cm in diameter, with semen from a stallion of proven fertility diluted with minimum contamination extender. The conception rates for the first cycle for the 48h and 72h intervals were 66.67% (24/36) and 65.22% (15/23) respectively, and the conception/cicle were 53.45% (31/58) and 56.76% (21/37), in the same order. Based on these results, one should consider recommending inseminations on monday, wednesday and friday, without fertility loss.
Effect of interval between the two last artificial inseminations on mares fertility inseminated with diluted fresh semen
Saturnino,Helton Mattana and Filho,José Monteiro da Silva and Silva,Manoel Dantas and Palhares,Maristela Silveira and Brandão,Felipe Zandonadi and Oliveira,Henrique Nunes. Effect of interval between the two last artificial inseminations on mares fertility inseminated with diluted fresh semen. R. Bras. Zootec. [online]. 2002, vol.31, 3, [cited 2026-04-23], pp.1143-1149. Available from: <https://rbz.org.br/article/effect-of-interval-between-the-two-last-artificial-inseminations-on-mares-fertility-inseminated-with-diluted-fresh-semen/>. ISSN 1516-3598. http://doi.org/10.1590/S1516-35982002000500010.
Saturnino,Helton Mattana; Filho,José Monteiro da Silva; Silva,Manoel Dantas; Palhares,Maristela Silveira; Brandão,Felipe Zandonadi; Oliveira,Henrique Nunes. Effect of interval between the two last artificial inseminations on mares fertility inseminated with diluted fresh semen. R. Bras. Zootec., v.31, 3, p. 1143-1149. Jun. 2002. Available from: <https://rbz.org.br/article/effect-of-interval-between-the-two-last-artificial-inseminations-on-mares-fertility-inseminated-with-diluted-fresh-semen/>. acess on 23 Apr. 2026. http://doi.org/10.1590/S1516-35982002000500010.
Saturnino,Helton Mattana, & Filho,José Monteiro da Silva, & Silva,Manoel Dantas, & Palhares,Maristela Silveira, & Brandão,Felipe Zandonadi, & Oliveira,Henrique Nunes. (2002). Effect of interval between the two last artificial inseminations on mares fertility inseminated with diluted fresh semen. R. Bras. Zootec., 31(3) , 1143-1149. http://doi.org/10.1590/S1516-35982002000500010.
SaturninoHelton Mattana, FilhoJosé Monteiro da Silva, SilvaManoel Dantas, PalharesMaristela Silveira, BrandãoFelipe Zandonadi, OliveiraHenrique Nunes. Effect of interval between the two last artificial inseminations on mares fertility inseminated with diluted fresh semen. R. Bras. Zootec. [Internet]. 2002 Jun [cited 2026 Apr 23]; 31(3): 1143-1149. Available from: https://rbz.org.br/article/effect-of-interval-between-the-two-last-artificial-inseminations-on-mares-fertility-inseminated-with-diluted-fresh-semen/. http://doi.org/10.1590/S1516-35982002000500010.
Figure 6
Differential abundance for the species Faecalibacterium prausnitzii (A) and Megamonas funiformis (B).
