搜索结果: 1-12 共查到“农学 dietary energy”相关记录12条 . 查询时间(0.111 秒)
Dietary Energy Level Affects the Composition of Cecal Microbiota of Starter Pekin Ducklings
duck bacterial diversity dietary energy
2018/3/5
In this study, we evaluated the phylogenetic diversity of the cecal microbiota of 3-week-old ducklings fed three
diets differing in metabolizable energy. The contents of the ceca were collected from ...
Effects of Dietary Energy Levels on the Physiological Parameters and Reproductive Performance of Gestating Gilts
Energy Level Gilts Body Weight Backfat Thickness Reproductive Performance
2016/7/27
This experiment was conducted to investigate the effects of dietary energy levels on the physiological parameters and reproductive performance of gestating first parity sows. A total of 52 F1 gilts (Y...
Characterization of Dietary Energy in Swine Feed and Feed Ingredients: A Review of Recent Research Results
Dietary Energy Net Energy Measurement Distiller Dried Grains with Solubles Pigs
2016/5/17
Feed is single most expensive input in commercial pork production representing more than 50% of the total cost of production. The greatest proportion of this cost is associated with the energy compone...
Daily Feed Intake, Energy Intake, Growth Rate and Measures of Dietary Energy Efficiency of Pigs from Four Sire Lines Fed Diets with High or Low Metabolizable and Net Energy Concentrations
Pig Growth Performance Feed Efficiency Dietary Energy
2016/5/9
A trial was conducted to: i) evaluate the BW growth, energy intakes and energetic efficiency of pigs fed high and low density diets from 27 to 141 kg BW, ii) evaluate sire line and sex differences whe...
High and low dietary energy and protein levels for broiler chickens
Dietary energy protein levels performance carcass broiler chicken
2011/1/12
This experiment was carried out to ascertain the effect of feeding combination of high and low calorie and protein on the performance and carcass values of broiler chickens. Four diets having four dif...
Effect of Dietary Energy Levels of Gestating Sows on Physiological Parameters and Reproductive Performance
Energy Level Body Weight Backfat Thickness Progesterone Primiparous Sow
2016/5/5
This experiment was conducted to investigate the effects of dietary energy levels of gestating gilts on physiological parameters and reproductive performance for primiparous sows. A total of 40 F1 gil...
Effects of Dietary Energy and Protein on Performance,Egg Composition,Egg Solids,Egg Quality and Profits of Hy-Line W-36 Hens During Phase 3
dietary energy laying hens protein
2009/7/30
A 4×3 factorial experiment with four added dietary energy (fat) levels (0 (0.0), 24 (0.5), 48 (1.0), and 72 (1.5)kcal ME/kg (%fat)) and three protein levels (14.9, 15.5, and 16.1%) was conducted to de...
Effect of Dietary Energy on Performance,Egg Component,Egg Solids,and Egg Quality in Bovans White and Dekalb White Hens During Phase 2
egg composition energy feed conversion feed intake strains
2009/7/29
A 4×2 factorial experiment of four dietary energy levels (2,776, 2,820, 2,864 and 2,908kcal/kg) and two strains (Bovans White and Dekalb White) was conducted to determine the influence of dietary ener...
Effects of Dietary Energy Intake Levels on Growth Performance and Body Composition of Finishing Barrows and Gilts
Energy Intake Growth Performance Body Composition Finishing Barrows and Gilts
2016/4/28
This study was conducted to investigate the effects of different energy intake on physical and chemical composition in body fractions, growth performance and meat characteristics of finishing barrows ...
Effects of Dietary Energy Concentration and Lysine on the Digestible Energy Ratio for Apparent Amino Acid Digestibility in Finishing Barrows
Barrows Lysine:DE Ratio Amino Acid Digestibility Urinary Nitrogen
2016/4/27
This experiment was performed to investigate the effects of two energy levels and four lysine:digestible energy (DE) ratios on the apparent digestibility of nutrients in finishing pigs. The experiment...
Effects of Synchronizing the Rate of Dietary Energy and Nitrogen Release on Ruminal Fermentation, Microbial Protein Synthesis, Blood Urea Nitrogen and Nutrient Digestibility in Beef Cattle
Beef Cattle Dietary Energy Microbial Protein Synchrony Index Nutrient Digestibility
2016/4/20
The objective of this research was to determine the effects of synchronizing the rate of dietary energy and nitrogen release on: ruminal fermentation, microbial protein synthesis, blood urea nitrogen,...
Effect of Dietary Energy and Protein Contents on Buffalo Milk Yield and Quality during Advanced Lactation Period
Italian Mediterranean Buffalo Milk Production Dietary Energy and Protein Level
2016/4/8
Among Italian buffalo farmers, it is widely held that administering diets with high energy and protein concentrations is an effective way to increase milk production. In order to assess the validity o...