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| Carvalho,Roberta Ferreira; Mazon,Madeline Rezende; Silva,Ana Paula dos Santos; Oliveira,Leticia Silva; Zotti,Claiton André; Silva,Saulo da Luz e; Leme,Paulo Roberto. |
| ABSTRACT: Additives are used in high concentrate diets to prevent metabolic disorders in cattle. This study was designed to evaluate the effect of calcium sources and monensin on the control of ruminal acidosis in Nellore cattle that were abruptly shifted to a high (92.3%) concentrate diet. Eight cannulated steers were randomly assigned to two contemporary 4x4 Latin square. Treatments involved the addition of a calcium source, either limestone (LI) or a product derived from calcareous algae (CA), to the basic diet with or without the presence of monensin. Calcareous alga (Lithothamnium calcareum) is a natural and renewable product and a source of calcium carbonate. The quantity of added limestone, calcareous algae and monensin was 7.1g kg-1, 7.4g kg-1 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acidosis; Feedlot; High concentrate; Ruminal variables. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400713 |
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| Petrolli,Tiago Goulart; Sutille,Maria Aparecida; Petrolli,Osmar José; Stefani,Lenita Moura; Simionatto,Anderson Tiecher; Tavernari,Fernando de Castro; Zotti,Claiton André; Girardini,Lilian Kolling. |
| ABSTRACT The objective of this study was to evaluate performance, hematological parameters, leukocyte counts, and respiratory microbiota of broilers under heat stress receiving eucalyptus oil supplementation. Cobb broilers (n = 1200) were randomly distributed on the first day of life in a factorial arrangement with additional treatment (2 × 2 + 1) with two periods of oil administration via drinking water (daily, from 18 to 35 days of life) and two periods of oil administration via spray (daily, from 18 to 35 days of age) plus a control treatment, consisting of twelve replications, with 20 animals each. The birds were kept in a controlled environment with constant temperature at 32 °C to induce heat stress by infrared heaters. Eucalyptus oil was supplied by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additives; Environment; Essential oils; Poultry. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100200 |
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| Paula,Raphael Marques de; Zotti,Claiton André; D’Abreu,Léa Furlan; Cônsolo,Nara Regina Brandão; Leme,Paulo Roberto; Silva,Saulo da Luz e; Saran Netto,Arlindo. |
| ABSTRACT This study was carried out to evaluate the effect of a blend of additives (choline, methionine, selenium, and organic zinc) on performance, feed efficiency, rumen parameters, and carcass traits of Nellore heifers finished with roughage-free diet. Nellore heifers (n = 36; average BW = 244±24.1 kg; average 24 months of age) were maintained in a feedlot system for 86 d. Heifers were separated into two groups: control and additive. Heifers in control group were fed a based diet composed of 850 g kg−1 corn grain and 150 g kg−1 of a mineral-vitamin-protein pellet. The additive group was fed a diet supplemented with a blend of choline, methionine, selenium, and organic zinc at 1,667, 4,000, 1, and 24.37 mg kg−1 of the diet dry matter, respectively. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid; Feedlot; Metabolic modulator; Minerals. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100700 |
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