Broiler Chick
Mostrando 1-12 de 46 artigos, teses e dissertações.
-
1. Effect of Egg Position in the Incubator on Broiler Hatching Results
ABSTRACT This study investigated whether the effect of egg location during incubation on hatching results in broiler eggs. For this purpose, a total of 756 broiler eggs were incubated for 21 days. The eggs were divided near the door and near the fan, and distributed on top (216 eggs), 324 in the middle (324 eggs), and in the bottom (216 eggs) according to a
Braz. J. Poult. Sci.. Publicado em: 20/12/2019
-
2. EMBRYONIC MORTALITY AND BROILER CHICK QUALITY (Gallus gallus) FROM GLASS-SHELLED EGGS
Resumo Ovos de casca vítrea apresentam em suas superfícies pontos com coloração cinza claro de vários diâmetros, que ficam mais visíveis com o decorrer do período de armazenagem. Objetivou-se no trabalho, avaliar a fase de mortalidade embrionária, peso do ovo durante o período de incubação, intervalo de tempo de nascimento e a qualidade dos pinto
Ciênc. anim. bras.. Publicado em: 24/10/2019
-
3. Effects of in ovo injection of lysine and methionine into fertile broiler (parent stock) eggs on hatchability, growth performance, caecum microbiota, and ileum histomorphology
ABSTRACT We investigated the effect of in ovo injection of lysine, methionine, or their mixture into fertile broiler eggs on hatchability, chick weight, growth performance, inner organ development, caecum total aerobic bacteria, E. coli, coliforms, Enterobactericaea, and ileal histomorphology of broilers. Three hundred fertile eggs obtained from 60-week-old
R. Bras. Zootec.. Publicado em: 18/06/2018
-
4. Effect of Hatching Time on Yolk Sac Percentage and Broiler Live Performance
ABSTRACT This study investigated the effects of broiler chick hatching time on the percentage of the yolk sac and subsequent broiler live performance. Broiler hatching eggs were obtained from a commercial flock at 55 wk of age and were stored for 2 d at 18°C and 75% relative humidity (RH) prior to incubation. Chicks were identified as hatching Early (471-47
Braz. J. Poult. Sci.. Publicado em: 2018-04
-
5. Standard Body Weight and Serum Estradiol and Progesterone Concentrations in Response to Total Lysine Content in Female Broiler Breeders from 14 to 42 Days after Hatch
ABSTRACT This study was conducted to determine the total lysine requirement for female broiler breeders from days 14 to 42. Two-hundred and ten female broiler breeders were used in a completely randomized design with 6 replicates per treatment and 5 chicks per pen under restricted feeding. The contents of total lysine used in this experiment were 0.68, 0.72,
Rev. Bras. Cienc. Avic.. Publicado em: 2018-03
-
6. Water vapor conductance: a technique using eggshell fragments and relations with other parameters of eggshell
ABSTRACT The objective of this study was to evaluate a technique for quantifying eggshell conductance using shell fragments from hatched eggs. Additional objectives were to calculate the correlation between eggshell conductance, porosity, and thickness and correlate these parameters with incubation data. The study design was fully randomized in a 3 × 3 fact
R. Bras. Zootec.. Publicado em: 2017-12
-
7. Effect of Sources and Levels of Dietary Zinc on the Performance, Carcass Traits and Blood Parameters of Broilers
ABSTRACT A total of 400 one-day-old, straight-run, commercial (Ross 308) broiler chicks were used to evaluate the effects of two dietary levels of zinc (Zn) sources on broiler chick performance, carcass traits and blood parameters. Corn-soybean diets were formulated for three rearing phases (starter, grower and finisher). The two dietary treatments applied c
Rev. Bras. Cienc. Avic.. Publicado em: 2017-09
-
8. Effect of Egg Weights on Hatching Results, Broiler Performance and Some Stress Parameters
ABSTRACT The present study was conducted to investigate the effect of hatching egg weight of broiler parent stocks on hatching results, chick performance, carcass characteristics, internal organ weights and some blood stress parameters. Eggs were divided into 3 egg weight groups (55.0 to 60.0 g (light), 60.1 to 65.0 g (medium) and 65.1 to 70.0 g (heavy)) for
Rev. Bras. Cienc. Avic.. Publicado em: 2017-06
-
9. Performance of Chicks Submitted to Fasting Post-Hatching and with Maltodextrine Supplementing to Diet as Hydrating and Energetic Additive
ABSTRACT This study aimed to evaluate the effect of maltodextrin on performance of chicks passed through four fasting periods. A completely randomized design was performed, consisting of three treatments (1 - control, 2 - 4% saccharose; 3-4% maltodextrin 20) and four fasting periods after hatching (0, 12, 24 and 36 hours) with four replications, totaling 192
Rev. Bras. Cienc. Avic.. Publicado em: 2017-01
-
10. Effect of Incubator Type and Broiler Breeder Age on Hatchability and Chick Quality
ABSTRACT Two experiments were conducted to evaluate the effect of broiler breeder age and incubator type on hatching parameters, hatch window, embryo diagnosis results, and hatchling physical quality. The treatments consisted of a combination of three broiler breeder ages (29, 35 and 59 weeks of age) and two incubator types (single stage, SS; or and multiple
Rev. Bras. Cienc. Avic.. Publicado em: 2016-12
-
11. Thermal gradients of container and mean surface temperature of broiler chicks transported on different shipments
ABSTRACT This study aimed to evaluate the thermal gradients between the container environment and the interior of chick boxes and mean surface temperature of broiler chicks during transportation on different shipments. The research was conducted in the state of São Paulo, Brazil, with the accompaniment of nine shipments with different density boxes, using a
Eng. Agríc.. Publicado em: 2016-08
-
12. Prediction of mean surface temperature of broiler chicks and load microclimate during transport
ABSTRACT This study aimed to determine a model to predict mean surface temperature of broiler chicks and live load microclimate conditions during transport by using neural networks. The research was conducted in the state of São Paulo, Brazil, by monitoring nine shipments with different density of boxes using an air-conditioned truck with an average capacit
Eng. Agríc.. Publicado em: 2016-08