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| Salles,Márcia Saladini Vieira; Zanetti,Marcus Antonio; Salles,Fernando André; Titto,Evaldo Antonio Lencioni; Conti,Renata Maria Consentino. |
| In order to evaluate the effect of environmental temperature on ruminal fermentation and on mineral levels of growing ruminants, it was used 12 male calves (initial average weight 82.9 ± 7.7 kg, 100 days of age), were employed in a randomized block design (by weight) experiment, with repeated weight measurement and two environmental temperatures: thermoneutral (24ºC) and heat-stressed (33ºC), during 38 days. The animals exposed to 33ºC presented lower dry matter ingestion, lower T3 (triiodothyronine) serum level, higher ammoniacal nitrogen (NH3-N) level in the rumen liquid, and higher rectal and body temperatures during all the experimental period when compared to the animals kept in thermoneutral environment (24ºC). The animals kept under heat stress... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammoniacal nitrogen; Dry matter ingestion; Heat stress; Macromineral; Micromineral; Volatile fatty acids. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000400025 |
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| Muniz,Mendelson Henrique Baldassa; Berto,Dirlei Antonio; Augusto,Regina Maria Nascimento; Trindade Neto,Messias Alves; Wechsler,Francisco Stefano; Tierzo,Vivian Lo; Hauptli,Lucélia. |
| A presente pesquisa foi realizada com o objetivo de comparar os efeitos de fontes orgânicas e inorgânicas de microminerais sobre o desempenho, os parâmetros sanguíneos e a deposição de minerais em tecidos e órgãos de leitões desmamados. Foram utilizados 54 leitões de genética comercial, desmamados com idade média de 24 dias e peso médio de 7,35±0,88kg, num delineamento experimental de blocos ao acaso, com dois tratamentos, nove repetições e três animais por parcela. Os tratamentos foram representados pelo uso de rações suplementadas com minerais de fontes orgânicas ou inorgânicas (Cu, Zn, Fe, Mn e Se) no período dos 24 aos 57 dias de idade. Foram avaliados o consumo diário de ração, o ganho diário de peso, a conversão alimentar, os parâmetros hematológicos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Micromineral; Mineral quelatado; Suínos. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010001000018 |
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| Faria,Bruno Damaceno; Silva,Leandro Moreira; Ribeiro Junior,Valdir; Ferreira,Adriana Helena do Nascimento; Rostagno,Horacio Santiago; Albino,Luiz Fernando Teixeira; Hannas,Melissa Izabel. |
| ABSTRACT: This study was undertaken to evaluate the effects of dietary calcium levels and supplementation with organic trace minerals selenium, copper, iron, zinc and manganese on performance, tissue deposition and litter mineral concentration. A total of 2,496 one-day-old male Cobb 500 broilers were randomly assigned to a 3 × 4 factorial experimental design with three levels of dietary Ca [8, 10 and 12 g kg–1, while maintaining the same Ca:nPP (non-phytate phosphorus) ratio (2:1)] and four levels of micromineral supplementation (0.62, 0.72, 0.82 and 0.92 g kg–1). There was a total of 12 treatments, with eight replicates of 26 birds per pen. Micromineral supplementation (MS) was achieved by adding different levels of the product Bioplex TR Se® and Ca... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chicken; Micromineral; Tibia; Breast muscle. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000100401 |
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