搜索结果: 1-15 共查到“农学 pasture”相关记录37条 . 查询时间(0.093 秒)
The effect of grazing on the productive performance and meat quality was evaluated for chickens
(Ross 308, n = 192). Chickens were kept in two pens on wooden shavings (2 × 96) from one day of age. O...
Fattening heifers on continuous pasture in mountainous regions–implications for productivity and meat quality
beef cattle Alpine pasture daily gain product quality fatty acid
2015/6/24
Economical and ecological issues as well as consumer demand for sustainably produced agricultural food rise the trends to fatten beef cattle on pasture during the grazing season. However, particularly...
Modelling Pasture-based Automatic Milking System Herds: The Impact of Large Herd on Milk Yield and Economics
Walking Distance Milking Interval Milk Yield Profit
2016/5/18
The aim of this modelling study was to investigate the effect of large herd size (and land areas) on walking distances and milking interval (MI), and their impact on milk yield and economic penalties ...
Modelling Pasture-based Automatic Milking System Herds: System Fitness of Grazeable Home-grown Forages, Land Areas and Walking Distances
Herd Size Walking Distance Grazeable Home-Grown Forages
2016/5/18
To maintain a predominantly pasture-based system, the large herd milked by automatic milking rotary would be required to walk significant distances. Walking distances of greater than 1-km are associat...
Modelling Pasture-based Automatic Milking System Herds: Grazeable Forage Options
Agricultural Production Systems Simulator Dairy Forage Options Forage Rotations
2016/5/18
One of the challenges to increase milk production in a large pasture-based herd with an automatic milking system (AMS) is to grow forages within a 1-km radius, as increases in walking distance increas...
Ad libitum Pasture Feeding in Late Pregnancy Does Not Improve the Performance of Twin-bearing Ewes and Their Lambs
Body Condition Score Feeding Back Fat Depth Live Weight Survival
2016/5/18
The present study evaluated the effect of controlled ryegrass-white clover herbage availability from day 128 until day 142 of pregnancy in comparison to unrestricted availability, on the performance o...
Migratory dynamics of cyathostomin larvae in a Bermuda grass pasture in South America
Keywords:Cyathostominae infective larvae irrigation seasons
2015/4/15
Studies of the migratory dynamics of cyathostomin infective larvae (L3) in different seasons and with two types of irrigation were carried out over 12 months (September 2006 to September 2007) in the ...
Ingestive Behavior of Heifers Supplemented with Glycerin in Substitution of Corn on Brachiaria brizantha Pasture
Biodiesel Efficiency Ethology Glycerin, Ingestion
2016/5/17
The objective was to evaluate the ingestive behavior of crossbred heifers finished on a Brachiaria brizantha cv. Marandu pasture receiving four levels of glycerin in their supplementation. Thirty-six ...
Nutritional Evaluation of Young Bulls on Tropical Pasture Receiving Supplements with Different Protein:Carbohydrate Ratios
Digestibility Grazing Intake Pasture Supplementation, Calf
2016/5/17
The objective of this work was to evaluate the nutritional parameters of young bulls supplemented with different ratios of protein: carbohydrate on tropical pastures from 4 until 18 months old. Fifty-...
Seasonal Variations in Voluntary Intake and Apparent Digestibility of Forages in Goats Grazing on Introduced Leymus chinensis Pasture
Leymus chinensis n-Alkanes Intake Digestibility Goat
2016/5/16
The nutrient composition of pasture, voluntary intake and digestibility of diet ingested by goats grazing on an introduced Leymus chinensis pasture were measured across spring (May), summer (July), au...
Grazing Soybean to Increase Voluntary Cow Traffic in a Pasture-based Automatic Milking System
Automatic Milking System Cow Traffic Pasture Soybean
2016/5/16
Pasture-based automatic milking systems (AMS) require cow traffic to enable cows to be milked. The interval between milkings can be manipulated by strategically allocating pasture. The current experim...
Grazing Behavior and Locomotion of Young Bulls Receiving Different Nutritional Plans in a Tropical Pasture
Activity Cattle GPS Sensor Supplement
2016/5/16
The objectives of this study were to compare visual observation and an electronic grazing time method and to evaluate the effects of nutritional plans on intake, grazing behavior and horizontal and ve...
Intake and Performance of Yearling Steers Grazing Guineagrass (Panicum maximum cv. Tanzania) Pasture Supplemented with Different Energy Sources
Soybean Hulls Corn Performance Steers Consumption Dry Period
2016/5/11
The aim of this study was to evaluate the efficiency of supplements containing different energy sources in relation to mineral supplementation of steers grazing guineagrass (Panicum maximum cv Tanzani...
Changes in Metabolites Concentration in Nguni and Crossbred Calves on Natural Pasture
Age Calcium Glucose Non-esterified Fatty Acids Total Protein Calf
2016/5/9
Accurate assessment of the nutritional status of Nguni cattle is becoming increasingly important in determining their mechanism for adaptation to challenging environments. Changes in body weights and ...
Effect on Milking Performance of Vitamin-Trace Element Supplements to Early Lactation Italian Brown Cows Grazing Ryegrass (Lolium multiflorum) Pasture
Cow Pasture Vitamin Trace Element Milk Yield
2016/5/6
The objective of this study was to examine the effects of concentrates containing different levels of a vitamin-trace elements premix on milk yield and composition of dairy cows. The trial, which last...