
Authors: L.F. Brito, F.G. Silva, A.L.P. Melo, G.C. Caetano, R.A. Torres, M.T. Rodrigues and G.R.O. Menezes
Data from 1279 lactations of 783 Alpine and Saanen goats of the herd of our university in Minas Gerais, Brazil, were used to study environmental effects on and to estimate genetic parameters for milk production until 270 days of lactation (MP270) and for production and percentages of fat (PFAT and %FAT), protein (PPROT and %PR.. Read More»
Authors: R.P. Araldi, R.F. Carvalho, T.C. Melo, N.S.P. Diniz, T.A. Santâ��Ana, J. Mazzuchelli-de-Souza, D.D. Spadacci-Morena, W. Be�§ak and R.C. Stocco
Bovine papillomavirus (BPV) is an oncogenic virus associated with benign and malignant lesions, which result in notable economic losses. Peripheral blood samples and cutaneous papillomas were obtained from four adult beef cattle. Viral molecular identification was performed using specific primers for BPV-1, -2 and -4 in blood .. Read More»
Authors: F.R. Araujo Neto, R.B. L�´bo, M.D.S. Mota and H.N. Oliveira
We estimated genetic parameters for various phases of body and testicular growth until 550 days of age in Nelore cattle, using Bayesian inference, including correlation values and error estimates. Weight and scrotal records of 54,182 Nelore animals originating from 18 farms participating in the Brazilian Nelore Breeding Progra.. Read More»
Authors: M.C. Baeza, P.M. Corva, L.A. Soria, G. Rincon, J.F. Medrano, E. Pavan, E.L. Villarreal, A. Schor, L. Melucci, C. Mezzadra and M.C. Miquel
The somatotropic axis is a major regulatory pathway of energy metabolism during postnatal growth in mammals. Genes involved in this pathway influence many economically important traits. The association of selected SNPs in these genes with carcass traits was examined in grazing Brangus steers. These traits included final live w.. Read More»
Authors: E.A. Simielli Filho, M.E.Z. Mercadante, J.A. II Vasconcelos Silva and L.A. Josahkian
Records of 17,141 Nellore cattle participating in cattle championships, born from 1994-2009, were used to estimate genetic parameters between animal rank in cattle championships, evaluated from weaning to 36 months of age as repeated traits, and growth, fertility, and carcass traits, evaluated at 365 days of age as single trai.. Read More»
Authors: Y.Q. Wang, W.W. Wu, L.K. Wang, K. Chen and Y.H. Li
The aim of this study was to investigate the effects of partial hepatic ischemia/reperfusion (I/R) on postoperative cognitive function in mice. One hundred Kunming mice were randomized into control group (N = 20), sham group (N = 20) and I/R group (N = 60), which was equally divided into 3 subgroups according to the ischemia t.. Read More»
Authors: P. Ianella, C.M. McManus, S.R. Paiva and A.R. Caetano
Resistance and susceptibility to scrapie in sheep have been associated with SNPs located at codons 136, 154 and 171 of the prion protein (PRNP) gene. Many countries have sheep breeding programs selecting for resistance to scrapie based on the genotyping of these SNPs. We adapted a fast and robust method for genotyping sheep fl.. Read More»
Authors: J.M. Huang, Z.Y. Wang, Z.H. Ju, C.F. Wang, Q.L. Li, T. Sun, Q.L. Hou, S.Q. Hang, M.H. Hou and J.F. Zhong
Bovine lactoferrin (bLF) is a member of the transferrin family; it plays an important role in the innate immune response. We identified novel splice variants of the bLF gene in mastitis-infected and healthy cows. Reverse transcription-polymerase chain reaction (RT-PCR) and clone sequencing analysis were used to screen the spli.. Read More»
Authors: Y. Wang, R.P. Zhang, Y.M. Zhao, Q.Q. Li, X.P. Yan, J.Y. Liu, H. Gou and L. Li
This study aimed to investigate whether the differential expression of muscle development-related genes is one of the reasons why muscle development differs between Pekin, Jianchang, and Heiwu ducks, which are all domesticated duck breeds (Anas platyrhynchos domestica) breeds. At 2 weeks of age, the RNA expression of paired box 7 (Pax7), paired box 3 (Pax.. Read More»
Authors: M. Yue, Y.G. Tian, Y.J. Wang, Y. Gu1, N. Bayaer, Q. Hu and W.W. Gu,
The IGF-1 gene is an important regulating factor that has a growth-promoting effect on growth hormone. The IGF-1 gene promotes muscle cell differentiation in the muscle cell formation process. The IGF-1 gene also regulates the growth of skeletal muscle during skeletal muscle growth. In addition, the IGF-1 gene plays an importa.. Read More»