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.
A protocol of two inseminations (12h and 36h; time schedule) per estrous was applied in fifty sows in order to study the individual influence of the insemination order on the offspring composition. Analyses of microsatellites were used for identification of the paternity. The first and the second inseminations contributed respectively with 34.8% and 65.2% of all piglets that were born. Piglets were born from both inseminations (mixed litters) in 80% of the farrowings. Each of the first or the second insemination contributed to 10% of the litters. Although the first insemination was applied before the first half of the estrous, it contributed to the piglets that were born in 90% of the farrowings.
Identification of paternity of piglets to determine the contribution of the first or the second insemination to the offspring composition
Silveira,Paulo Roberto Souza da and Cesconeto,Robson José and Zanella,Eraldo Lourenso and Junior,Waldomiro Barioni. Identification of paternity of piglets to determine the contribution of the first or the second insemination to the offspring composition. R. Bras. Zootec. [online]. 2008, vol.37, 4, [cited 2026-10-09], pp.609-615. Available from: <https://rbz.org.br/article/identification-of-paternity-of-piglets-to-determine-the-contribution-of-the-first-or-the-second-insemination-to-the-offspring-composition/>. ISSN 1516-3598. http://doi.org/10.1590/S1516-35982008000400004.
Silveira,Paulo Roberto Souza da; Cesconeto,Robson José; Zanella,Eraldo Lourenso; Junior,Waldomiro Barioni. Identification of paternity of piglets to determine the contribution of the first or the second insemination to the offspring composition. R. Bras. Zootec., v.37, 4, p. 609-615. Apr. 2008. Available from: <https://rbz.org.br/article/identification-of-paternity-of-piglets-to-determine-the-contribution-of-the-first-or-the-second-insemination-to-the-offspring-composition/>. acess on 09 Oct. 2026. http://doi.org/10.1590/S1516-35982008000400004.
Silveira,Paulo Roberto Souza da, & Cesconeto,Robson José, & Zanella,Eraldo Lourenso, & Junior,Waldomiro Barioni. (2008). Identification of paternity of piglets to determine the contribution of the first or the second insemination to the offspring composition. R. Bras. Zootec., 37(4) , 609-615. http://doi.org/10.1590/S1516-35982008000400004.
SilveiraPaulo Roberto Souza da, CesconetoRobson José, ZanellaEraldo Lourenso, JuniorWaldomiro Barioni. Identification of paternity of piglets to determine the contribution of the first or the second insemination to the offspring composition. R. Bras. Zootec. [Internet]. 2008 Apr [cited 2026 Oct 09]; 37(4): 609-615. Available from: https://rbz.org.br/article/identification-of-paternity-of-piglets-to-determine-the-contribution-of-the-first-or-the-second-insemination-to-the-offspring-composition/. http://doi.org/10.1590/S1516-35982008000400004.
Figure 9
Differential abundance of taxa between treatments for Fimenecus sp004556705 (A) and NSJ-53 sp014384795 (B) species on day 21 of lactation in 8 sows per treatment fed to one of three dietary treatments: 1) a diet containing xylanase (Control; valorization of 40 kcal of ME/kg diet, CD40), 2) CD40 + β-mannanase (0.3 g/kg, valorization of 45 kcal ME/kg diet, CD85), and 3) CD40 + β-mannanase (0.3 g/kg, valorization of 60 kcal ME/kg diet, CD100).
