Roughage Concentrate Ratio
Mostrando 1-12 de 27 artigos, teses e dissertações.
-
1. Feeding behavior of goat kids fed diets containing peach palm meal
ABSTRACT. The aim in this study was to evaluate the feeding behavior of goat kids fed diets containing peach palm meal replacing corn (0, 10, 40, 60, and 85 % on a dry matter basis). Thirty crossbred Boer kids, with 90 days old and initial body weight of 16.7 ± 3.5 kg were distributed in a completely randomized design with six replicates. Diets were daily s
Acta Sci., Anim. Sci.. Publicado em: 24/10/2019
-
2. Feed restriction of F1 Holstein × Zebu cows in the final third of lactation modifies intake, nutrient digestibility, feeding behavior, and performance
ABSTRACT The objective of this study was to evaluate the effect of quantitative feed restriction level on nutrient intake and digestibility, nitrogen balance, efficiency and feeding behavior, and productive performance of F1 Holstein × Zebu cows in late lactation. Sixty F1 Holstein × Zebu cows were used at the stage of late lactation (183.0±17.5 days of l
R. Bras. Zootec.. Publicado em: 15/04/2019
-
3. Sugarcane bagasse as exclusive roughage for dairy heifers
ABSTRACT The objective of this study was to evaluate the effect of different concentrate levels (40, 50, 60, and 70% on dry matter basis) on intake, digestibility of nutrients, and performance of heifers fed sugarcane bagasse as exclusive roughage. Twenty Girolando heifers, with an average body weight of 198±25.6 kg were assigned to a completely randomized
R. Bras. Zootec.. Publicado em: 2017-01
-
4. Ingestive behavior of dairy goats fed increasing levels of sugarcane in replacement of corn silage
The objective of this experiment was to evaluate levels of replacement (0, 33, 67 and 100%) of corn silage with fresh sugarcane in dairy-goat diets on the ingestive behavior of these animals. Eight lactating Alpine goats (after lactation peak) with a live weight of 51.95±3.29 kg were distributed into two 4 × 4 Latin squares according to their milk producti
R. Bras. Zootec.. Publicado em: 2014-12
-
5. Effects of heat stress on the physiological parameters and productivity of hair sheep in tropical and coastal environments
The experiment was carried out with sheep during the finishing phase in a partial confinement system to evaluate the following physiological parameters: rectal temperature (RT), respiratory rate (RR), heart rate (HR), productive performance and carcass characteristics. Fourteen uncastrated sheep with an average initial age of 90 days belonging to two genetic
R. Bras. Zootec.. Publicado em: 2014-10
-
6. Effects of dietary brown propolis on nutrient intake and digestibility in feedlot lambs
The present study tested brown propolis in crude or extract form as a feed supplement for feedlot lambs to identify the type that most improves in vivo nutrient digestibility. Digestibility was assessed by both total fecal collection and internal markers and the results obtained by these techniques were compared. The completely randomized design was used to
R. Bras. Zootec.. Publicado em: 2014-07
-
7. Risk assessment of finishing beef cattle in feedlot: slaughter weights and correlation amongst input variables
The objective of this study was to evaluate the risk associated with finishing crossbred Charolais × Nellore steers in feedlot at different slaughter weights (425, 467 or 510 kg), considering or disregarding the correlation amongst random input variables. Data were collected from 2004 to 2010 and used in the simulation of the financial indicator Net Present
R. Bras. Zootec.. Publicado em: 2014-02
-
8. Carcass characteristics of feedlot-finished Zebu and Caracu cattle
This study analyzes the chemical carcass characteristics and carcass losses in 86 cattle, both castrated and non-castrated, with an average initial weight of 329 kg and an average age of approximately 20 months, including 12 Gyr, 20 Guzerat, 20 Nellore, and 20 Caracu among the herds selected for weight determination at 378 days of age, as well as 14 Nellore
R. Bras. Zootec.. Publicado em: 2014-02
-
9. Intake, performance and nutrient digestibility of sheep fed sugarcane treated and ensiled with calcium oxide or urea
The objective of this study was to evaluate intake, performance and nutrient digestibility of sheep supplemented with sugarcane ensiled with four levels of calcium oxide (0.0, 0.8, 1.6 and 2.4%) and urea (1.5%), on a natural matter basis. Twenty castrated Santa Ines lambs with 24.09 kg average weight were housed in individual 1.5 m² pens, distributed in a c
R. Bras. Zootec.. Publicado em: 2013-10
-
10. Performance and carcass characteristics of Nellore young bulls fed different sources of oils, protected or not from rumen degradation
The objective was to evaluate the addition of vegetable oils protected or not from rumen degradation in the diet of feedlot-finished young bulls and their effects on performance and carcass characteristics. Thirty-five Nellore males of 402.69±14.90 kg initial weight and 18±2 months of age were utilized. The animals were confined for 96 days, after 28 days
R. Bras. Zootec.. Publicado em: 2013-02
-
11. Performance, carcass traits, meat quality and economic analysis of feedlot of young bulls fed oilseeds with and without supplementation of vitamin E
The objective of this research was to evaluate average daily gain (ADG), carcass traits, meat tenderness and profitability of keeping cattle fed different oilseeds and vitamin E in feedlot. A total of 40 Red Norte young bulls with initial average body weight of 339±15 kg were utilized. The experimental design was completely randomized in a 2 × 2 factorial
Revista Brasileira de Zootecnia. Publicado em: 2012-07
-
12. Metabolic changes in ruminant calves fed cation-anion diets with different proportions of roughage and concentrate
Two experiments were carried out with twenty-four male weaned Holstein calves to verify the influence of different dietary cation-anion concentrate and roughage proportions on calves metabolism. In the first experiment, calves were fed rations with -100, +200 and +400 mEq cation-anion balance/kg of dry matter, containing 60% of roughage and 40% of concentrat
Revista Brasileira de Zootecnia. Publicado em: 2012-02