搜索结果: 1-15 共查到“农学 P and N excretion”相关记录20条 . 查询时间(0.062 秒)
Effects of dietary protein level on growth performance and nitrogen excretion of dairy heifers
Heifers Growth Performance Protein Nitrogen Excretion
2017/3/9
Protein supplementation is costly and can result in excess nitrogen (N) excretion. The objective of this study was to evaluate the effects of feeding different levels of dietary protein on average dai...
Strategic control of Dicrocoelium dendriticum (Digenea) egg excretion by naturally infected sheep
dicroceliosis trematoda strategic treatment
2015/4/8
The aim of this study was to determine the most appropriate months for applying albendazole (ABZ; oral suspension dose 20 mg/kg body weight) to sheep naturally infected with Dicrocoelium dendriticum a...
Polygenic Resistance In The Highly DDT-resistant 91-R Strain Of Drosophila Melanogaster Involves Decreased Penetration, Increased Metabolism And Direct Excretion Of DDT
Resistance Metabolism P-glycoprotein
2014/10/21
Resistance to dichlorodiphenyltrichloroethane (DDT) in the 91-R strain of Drosophila melanogaster is extremely high compared to the susceptible Canton-S strain (>1500 times). Oxidative detoxification ...
Effect of Dietary Concentrate:forage Ratios and Undegraded Dietary Protein on Nitrogen Balance and Urinary Excretion of Purine Derivatives in Dorper×thin-tailed Han Crossbred Lambs
Lamb Concentrate:Forage Undegraded Dietary Protein Nitrogen Balance Purine Derivatives
2016/5/16
This study aimed to investigate dietary concentrate: forage ratios (C:F) and undegraded dietary protein (UDP) on nitrogen balance and urinary excretion of purine derivatives (PD) in lambs. Four Dorper...
Effect of Microbial Phytase on Performance, Nutrient Absorption and Excretion in Weaned Pigs and Apparent Ileal Nutrient Digestibility in Growing Pigs
Novel Phytase Performance Metacarpal Bone Characteristics Apparent Ileal Digestibility Pigs
2016/5/6
Two experiments were conducted to evaluate the efficacy of Trichoderma reesei derived phytase for pigs fed diets with fixed calcium to total phosphorus ratios (1.5:1). In Exp. 1, 280 weaned pigs (init...
Modelling nitrogen excretion, elephant grass growth and animal production in a stall-feeding dairy system
Dairy heifers digestibility nitrogen excretion elephant grass
2011/1/12
This study reports on a simulation model of livestock-forage with excreted nitrogen (N) as a source of N for elephant grass (Pennisetum purpureum) growth. It is shown that nitrogen partitioning betwee...
Effects of Dietary Adenine on Growth,Feed Intake,Purine Excretion and Tissue Purine Concentrations in Young Chickens
dietary adenine adverse effects growth retardation adenine metabolites young chickens
2009/7/31
It was examined whether dietary adenine has adverse effects on growth and feed intake in 2-month-old chickens as reported previously in younger chickens. The male chickens were fed ad libitum on contr...
Effects of Amino Acid,Enzyme Mixture and Phytase Added to Low Protein and Low Phosphorus Diet on Performance and Excretion of Nitrogen and Phosphorus in Broilers
broiler excretion of nitrogen excretion of phosphorus amino acid phytase
2009/7/31
In the purpose to reducing excretion of nitrogen (N) and phosphorus (P) without the influence of the growth performances and abdominal fat in broilers, a feeding trial and balance test were conducted....
Effects of Excess Essential Amino Acids in Low Protein Diet on Abdominal Fat Deposition and Nitrogen Excretion of the Broiler Chicks
broiler essential amino acids fat deposition nitrogen excretion
2009/7/30
Two experiments were conducted to determine whether the excess essential amino acids in low protein diets affects the performance, nitrogen excretion and abdominal fat deposition of broiler chicks. Es...
The Effects of Phytase Supplementation on Performance and Phosphorus Excretion from Broiler Chickens Fed Low Phosphorus-Containing Diets Based on Normal or Low-phytic Acid Barley
Poultry Low-phytate Barley Performance Phosphorus Excretion
2016/4/29
A total of 240 day-old broiler chicks were used to study the effects of phytase on performance and phosphorus (P) excretion from birds fed diets containing low phytate barleys formulated without inorg...
EFFECTS OF PROTEIN-XANTHOPHYLL (PX) CONCENTRATE OF ALFALFA ADDITIVE TO CRUDE PROTEIN-REDUCED DIETS ON NITROGEN EXCRETION, GROWTH PERFORMANCE AND MEAT QUALITY OF PIGS
fatteners feeding protein content
2010/12/7
The infl uence of protein-xanthophyll (PX) concentrate of alfalfa supplement to crude protein-reduced diets was examined in relation to nitrogen excretion, performance parameters and pig meat quality....
Dietary Inclusion of Enzyme Phytase in Egg Layer Diet on Retention of Nutrients, Serum Biochemical Characters and Phosphorus Excretion
Phytase nutrients retention serum biochemical phosphorus excretion
2010/11/11
A study was carried out to find out the effect of enzyme phytase (One gram contained 2410
IU of phytase activity) supplemented at 300, 600, 900 and 1200 IU/kg in layer chicken diets containing availa...
Evaluation of Urinary Nitrogen Excretion from Plasma Urea Nitrogen in Dry and Lactating Cows
Dry Cow Lactating Cow Nitrogen Clearance Plasma Urea Nitrogen
2016/4/28
Data of 42 balance measurements from dry and lactating Holstein cows and blood and urine samples from 24 Japanese Black cows were collected to evaluate the potential for predicting urinary nitrogen (N...
Estimation of Rumen Microbial Protein Supply Using Urinary Purine Derivatives Excretion in Crossbred Calves Fed at Different Levels of Feed Intake
Crossbred Calves Levels of Feed Intake Purine Derivatives Microbial Protein Supply
2016/4/26
A study was carried out to study the response of total purine derivatives (PD) excretion in urine to determine microbial N (MN) supply at four fixed levels of feed intake (namely 95, 80, 60 and 40% of...
Effects of Supplementing with Single or Multiple Trace Minerals on Growth Performance, Fecal Mineral Excretion and Nutrient Utilization in Pullets from 1 to 18 Weeks of Age
Trace Mineral Pullet Mineral Excretion Growth Performance
2016/4/26
This study investigated whether supplemental Cu, Fe, Zn, and Mn are needed in a practical diet for pullets. Four hundred and twenty females of an egg-laying strain (1-d-old, Lohmann Brown Layer) were ...