搜索结果: 1-8 共查到“dual purpose”相关记录8条 . 查询时间(0.093 秒)
Effect of inorganic or organic selenium supplementation on productive performance, egg quality and some physiological traits of dual-purpose breeding hens
selenium egg production fertility hatchability egg quality
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2015/6/8
One hundred and twenty (100♀ + 20♂) 30-weeks-old dual-purpose breeding hens of Gimmizah strain were housed in individual cages in a semi-open house. Birds were distributed randomly into five treatment...
Genetic evaluation of daily gains of dual-purpose bulls using a random regression model
daily gains curve random regression heritability correlation bulls
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2015/6/5
Daily gains of 8 243 dual-purpose bulls from 100 to 400 days of age during the years 1971 to 2007 were analyzed by random regression models. Orthogonal Legendre polynomials (LP) of degree 4 were appli...
Trajectory of body weight of performance tested dual-purpose bulls
cattle random regression heritability genetic correlation growth curve linear spline
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2015/6/4
6 508 bulls of dual-purpose cattle at performance-test stations were weighed at intervals of 30 days from birth to 420 days. After all editing a total of 74 558 weight records were available. Live wei...
Germplasm evaluation and enhancement for the development of cowpea (Vigna unguiculata (L.) Walp dual-purpose F2 genotypes
Vigna unguiculata germplasm harvest index dual-purpose
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2011/1/10
Cowpea is an important grain legume as well as fodder crop, especially in the dry regions of South Africa. The production of this crop has been below average because of low genetic variation and culti...
喷灌和软管灌溉两用机组水量分布特性与试验（Experiment and Analysis on Water Distribution Uniformity of Machine of Sprinkling Irrigation and Hose Irrigation Dual Purpose）
喷灌 软管灌溉 水量分布特性 试验
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2009/11/24
喷灌和软管灌溉两用轻小机组具有喷灌和软管灌溉两种灌水方式，且有高度可升降、喷幅可调等特点。采用理论分析和试验验证相结合的方法，对该机组水量分布特性进行了研究，分析了影响机组水量分布特性的因素，计算了机组在配置喷灌和软管灌溉系统时的喷灌强度、均匀系数，结果表明，影响机组水量分布均匀性的主要因素是所配置灌水器的水量分布特性、灌水器配置间距、行走速率、土壤和地形、风速等。在室内试验时，机组喷灌均匀系数达...
Evaluation of some sorghum [Sorghum bicolor（L）Moench] cultivars and lines as sweet, dual purpose, and grain types
Iran sucrose content
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2009/2/19
Nine cultivars and lines of sorghum of Iran were evaluated for sucrose content, grain yield, and yield components. Results show that cv Rio had the highest sucrose content (125.6 g kg–1 fresh stalk) a...
Comparison of Indigenous Browses and Sunflower Seed Cake Supplementation on Intake and Growth Performance of Dual-purpose Goats Fed Buffel Grass (Cenchrus ciliaris) Hay
Indigenous Browses Goats Intake Digestibility Growth
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2016/4/19
A study to compare the effects of supplementing Delonix elata, Grewia similis, Tamarindus indica and sunflower seed cake on intake and growth rate of dual-purpose goats fed low quality Buffel grass (C...
Effect of Supplementary Feeding Strategies on the Performance of Stall Fed Dual-purpose Dairy Cows Fed Grass Hay-based Diets
Dual-purpose Cows Plane of Nutrition Feeding Strategy Milk Yield Live Weight Body Condition
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2016/4/12
Supplementary feeding strategies were evaluated from pre-calving throughout lactation on 24 dual-purpose Mpwapwa breed cows in their second or greater lactation, weighing 246-455 kg. The Mpwapwa breed...