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| Ferreira, Lucas Silveira; Universidade de São Paulo; Silva, Jackeline Thais; Universidade de São Paulo; Paula, Marília Ribeiro de; Universidade de São Paulo; Soares, Marcelo Cesar; Universidade de São Paulo; Bittar, Carla Maris Machado; Universidade de São Paulo. |
| The fermentative, microbiological and nutritional dynamics of bovine colostrum fermented under anaerobic conditions at different temperatures is provided. Colostrum was homogenized and stored in PET bottles in anaerobic conditions and incubated at controlled temperature (32.5 ± 1°C or 22.5 ± 1°C) or at room temperature (17.4 - 21.5ºC) and opened after 0, 1, 7, 14, 21, 28 and 35 days to determine fermentative and nutritional parameters and bacteria, yeast and mold counts. Further, pH rates showed significant variations during the fermentation period (p < 0.0001), with colostrum stored at 32.5°C, exhibiting the lowest rates and significant reduction during the first days. Titratable acidity and lactic acid concentration showed increasing rates and LAB... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dairy calves; Feed quality; Liquid diet; Milk replacer dairy Calves; Feed quality; Liquid diet; Milk replacer. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/19870 |
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| FERREIRA, F. C.; SALMAN, A. K. D.; CRUZ, P. G. da. |
| A criação de bezerras, fase que será discutida neste capítulo, compreende não apenas a fase de criação per si, mas também o período que antecede seu nascimento (o período seco das vacas, aproximadamente 60 dias antes do parto). Os aspectos práticos mais importantes que permitem a melhoria dos sistemas de criação de bezerras do nascimento até o desmame são os seguintes: os cuidados no período do pré-parto até o nascimento, instalações, manejo ao nascimento, cuidados durante o período de cria, saúde da bezerra, cuidados após a desmama e controle dos índices zootécnicos. |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Bezerro Leiteiro; Método de Criação; Manejo; Dairy calves; Animal husbandry; Amazonia. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126178 |
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| DIAS, J.; MARCONDES, M. I.; NORONHA, M. F.; RESENDE, R. T.; MACHADO, F. S.; MANTOVANI, H. C.; DILL-McFARLAND, K. A.; SUEN, G.. |
| At birth, calves display an underdeveloped rumen that eventually matures into a fully functional rumen as a result of solid food intake and microbial activity. However, little is known regarding the gradual impact of pre-weaning diet on the establishment of the rumen microbiota. Here, we employed next-generation sequencing to investigate the effects of the inclusion of starter concentrate (M: milk-fed vs. MC: milk plus starter concentrate fed) on archaeal, bacterial and anaerobic fungal communities in the rumens of 45 crossbred dairy calves across pre-weaning development (7, 28, 49, and 63 days). Our results show that archaeal, bacterial, and fungal taxa commonly found in the mature rumen were already established in the rumens of calves at 7 days old,... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Microbiota; Archaea; Bacteria; Fungi; Rumen; Dairy calves; Diet; Age. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1083389 |
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| RODRIGUES, J. P. P.; LIMA, J. C. M.; CASTRO, M. M. D.; VALADARES FILHO, S. de C.; CAMPOS, M. M.; CHIZOTTI, M. L.; MARCONDES, M. I.. |
| Our objective was to estimate the energy and protein requirements of Holstein young calves up to 87 days old. Forty-two Holstein calves aged 4 days were used. From these, ten were randomly selected and slaughtered to compose the baseline slaughter (BS) group. The remaining calves were randomly assigned to eight treatments in a 4 × 2 factorial using a completely randomized design. The treatments were 2, 4, 6, and 8 kg/day of milk (297 g/kg CP; 319 g/kg of fat) fed twice daily, and then harvested at 59 or 87 days of age. Calves were fed a starter (193 g/kg CP; 133 g/kg NDF) ad libitum in all treatments. The calves slaughtered at 87 days of age had milk replaced by Coast-cross (Cynodoon sp.) hay (125 g/kg CP; 728 g/kg NDF). The net requirement of energy for... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Comparative slaughter; Efficiency of utilization; Growth; Maintenance; Metabolizable energy; Metabolizable protein; Dairy calves; Holstein; Metabolizable energy; Slaughter. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1058344 |
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| ROCHA, T. G.; SILVA, K. R.; SILVA, F. D. F.; ALFERI, A. A.; SILVA, D. G.; MONTASSIER, H. J.; BUZINARO, M. da G.; GREGORI, F.; ZAFALON, L. F.; FAGLIARI, J. J.. |
| The main strategy to prevent bovine rotavirus group A (RVA) diarrhea in calves is to vaccinate late-term dams aiming to enhance passive immunity transfer of specific immunoglobulins against the virus. This study aimed to evaluate influence of parity in titers of immunoglobulin G (IgG), IgG1 and IgM in serum and colostrum of vaccinated or unvaccinated Holstein cows and in serum of its calves, associated with monitoring for RVA diarrhea in calves. Cows and its calves were allotted into groups according to parity and vaccination (primiparous/multiparous; vaccinated/unvaccinated) and serum and colostrum samples of cows were taken as well as serum and fecal samples of its calves. Parturition influenced colostral titers of IgG and IgG1, which were higher in... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Bovine group A rotavirus; Humoral immune response; Dairy calves; Diarrhea; Vaccination. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1127571 |
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