搜索结果: 1-11 共查到“畜牧学 Light”相关记录11条 . 查询时间(0.078 秒)
Red Color Light at Different Intensities Affects the Performance, Behavioral Activities and Welfare of Broilers
Behavior Broilers Intensities Performance Red-light, Welfare
2016/7/27
Red light (RL) marked higher weight gain (WG) and preference of broilers compared to other light colors. This study aimed to investigate how different intensities of RL affect the performance, behavio...
Nocturnal Light Pulses Lower Carbon Dioxide Production Rate without Affecting Feed Intake in Geese
Feed Intake Goose Intermittent Lighting Metabolic Rate Photoperiod
2016/5/19
This study was conducted to investigate the effect of nocturnal light pulses (NLPs) on the feed intake and metabolic rate in geese. Fourteen adult Chinese geese were penned individually, and randomly ...
The ability to perceive the near ultraviolet part of the light spectrum (the wavelength 320–400 nm) has been detected in many bird species. This ability is an important bird sense. The ecological impo...
Linseed, microalgae or fish oil dietary supplementation affects performance and quality characteristics of light lambs
light lamb lipid oxidation n-3 polyunsaturated fatty acids colour stability
2014/10/24
The aim of this work was to improve the fatty acid profile of meat from light lamb, frequently reared in Spain and in other Mediterranean countries. A total of 44 light lambs fed different n-3 polyuns...
The capability of alfalfa grazing- and concentrate-based feeding systems to produce homogeneous carcass quality in light lambs over time
fat depot zoometric measurement lucerne
2014/10/23
The effects of grazing on the carcasses and meat of light lambs are unclear, mainly due to variations in weather conditions and pasture production, which affect the growth of lambs and the quality of ...
Effects of Light Color on Energy Expenditure and Behavior in Broiler
Lighting Color Energy Expenditure Behavior Calorimetry Broiler Chicken
2016/5/17
This study was conducted in order to investigate whether the presence of light or different colors of light would influence the energy expenditure and behavior of broiler chickens. Eight 8-week-old br...
Light and noise conditions of buildings for breeding dairy cows
dairy cattle breeding lighting noise level animal welfare visual comfort people
2014/2/26
Check measurement of the illuminance, the uniformity ratio of illuminance and noise level was made in the selected stable building to prove quality of lightning both for service workers and the cattle...
Training dairy bull calves to stay within light-built electric fences (Research Note)
cattle electric fences learning grazing
2010/8/9
Training cattle to avoid electric fences before turnout to grazing reduces the risk of the animals breaking out from their paddock. We investigated the time needed for dairy bull calves to learn to av...
HEARING LOSS AMONG PRIVATE FARMERS IN THE LIGHT OF CURRENT CRITERIA FOR DIMINISHED SENSE OF HEARING
hearing loss PTA (Pure Tone Average) HFA (High Frequency
2010/12/24
The study covered a group of 128 private farmers aged 28–65 (mean age 47.2) who had a period of occupational activity of 11–40 years (23.9 years average).
Embryonic Growth, Hatching Time and Hatchability Performance of Meat Breeder Eggs Incubated under Continuous Green Light
Hatching Time Hatchability Per cent Chick Hatching Weight
2016/4/12
The effects of dark-control (D) and continuous green light (GL) exposure of incubated meat-type breeder eggs (Hybro) on embryonic growth from 5 to 15 days of age, hatching time, hatchability per cent ...
Effect of Extreme Light Regime on Production and Characteristics of Egg in Laying Geese
Laying Goose Light Regime Egg Production Egg Characteristics
2016/4/11
The objective of this study was to investigate the effect of long light regime (20 h light and 4 h dark, 20L:4D) and short light regime (4 h light and 20 h dark, 4L:20D) on egg production and egg char...