搜索结果: 1-15 共查到“畜牧学 concentration”相关记录35条 . 查询时间(0.19 秒)
Effect of the first and second postpartum partial milking on blood serum calcium concentration in dairy cows
incomplete colostrum milking subclinical hypocalcemia milk fever
2015/7/3
Parturient paresis and subclinical hypocalcemia are frequent metabolic disorders in dairy cows postpartum. The aim of this study was to determine the effect of postpartum partial milking in the first ...
Composition of major proteins in cow milk differing in mean protein concentration during the first 155 days of lactation and the influence of season as well as short-term restricted feeding in early and mid-lactation
dairy cattle casein feed restriction
2015/7/3
A variety of proteins contributes greatly to the unique nutritional and functional quality of dairy cow milk. Particularly, milk casein content and composition have substantial influence on the proces...
Dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheep
selenium linseed oil fatty acid
2015/6/23
Each group comprised 5 lambs with an average initial body weight of 25 ± 2 kg.
For 35 days the sheep were fed the control or experimental diets enriched with 5% LO, SeVI, or LO and SeVI
combined. ...
Influence of dietary selenium level on the concentration of conjugated linoleic acid isomers, other fatty acids and amino acids in the liver and femoral muscles of rats
selenised yeast conjugated linoleic acid isomers rats liver femoral muscles fatty acids amino acids minerals
2015/6/9
The purpose of the present study was to determine the influence of diets containing conjugated linoleic acid isomers (CLAmix) with or without low (LSe) or high (HSe) concentration of selenised yeast (...
The effects of housing systems and age of hens on the weight and cholesterol concentration of the egg
conventional cages enriched cages litter system outdoor system yolk cholesterol egg weight
2015/6/4
The effects of laying hen age and the housing of laying hens in conventional cages, enriched cages, litter system and outdoor system on egg weight and yolk and egg cholesterol concentration were studi...
Effect of herd, parity, stage of lactation and milk yield on urea concentration in milk
dairy cow milk urea non-nutritional factors
2015/6/2
The objective of this study was to determine how non-nutritional factors such as herd, parity, days in milk, milk production, and milk components affect the concentration of milk urea. A retrospective...
Effect of different agronomical measures on yield and quality of autumn saved herbage during winter grazing – 2nd communication: Crude protein, energy and ergosterol concentration
winter pasture grazing livestock metabolisable energy ergosterol mycotoxins
2015/6/2
In addition to the results published in the first communication (Opitz von Boberfeld et al., 2006) this paper presents crude protein, energy (ME) and ergosterol concentrations of autumn saved herbage ...
Effect of dietary sodium selenite,Se-enriched yeast and Se-enriched Chlorella on egg Se concentration, physical parameters of eggs and laying hen production
sodium selenite Se-yeast Se-Chlorella laying hens Se in eggs Haugh unit hen production
2015/6/2
ISA Brown laying hens at 24 weeks of age, housed in laying battery cages, were used in this 4-group experiment. One group was fed a basal diet containing primarily maize, soybean meal and wheat. Selen...
Pelleting in Associated with Sodium Monensin Increases the Conjugated Linoleic Acids Concentration in the Milk of Dairy Cows Fed Canola Seeds
Animal Production Ionophore Heat Treatment Polyunsaturated Fatty Acid
2016/5/18
To evaluate the effects of the pelleting and the addition of sodium monensin on production, the chemical and lipid composition of milk and butter physical characteristics, 4 Holstein dairy cows (135 d...
Changes of Serum Calcium Concentration, Frequency of Ruminal Contraction and Feed Intake Soon after Parturition of Dairy Cows Fed Difructose Anhydride III
Dairy Cows Difructose Anhydride III Feed Intake Serum Calcium Concentration Ruminal Contraction
2016/5/17
Requirements to control the large decrease in serum calcium (Ca) due to parturition and to increase the feed intake soon after parturition have been well accepted in dairy cows. This study was aimed t...
Moisture Concentration Variation of Silages Produced on Commercial Farms in the South-Central USA
Baleage Chopped Silage Commercial Farm Nutritive Value Silage Moisture
2016/5/17
Preservation of forage crops as silage offers opportunity to avoid the high risk of rain-damaged hay in the humid south-central USA. Recent developments with baled silage or baleage make silage a less...
Effects of Dietary Selenium, Sulphur and Copper Levels on Selenium Concentration in the Serum and Liver of Lamb
Selenium Sulphur Copper Nutrition Sheep
2016/5/17
Thirty-two lambs were distributed in eight treatments under 2×2×2 factorial experiment to compare the effects of two levels of selenium (0.2 to 5 mg/kg dry matter [DM]), sulphur (0.25% and 0.37%) and ...
Effects of Feeding Increasing Proportions of Corn Grain on Concentration of Lipopolysaccharide in the Rumen Fluid and the Subsequent Alterations in Immune Responses in Goats
Goat, Haptoglobin High Corn Grain Diet Lipopolysaccharide Serum Amyloid A
2016/5/12
This study was conducted to investigate the effects of feeding increasing proportions of corn grain on concentration of lipopolysaccharide (LPS) in the rumen fluid and the subsequent alterations in im...
Seasonal Changes in Serum Testosterone, LDH Concentration and Semen Characteristics in Markhoz Goats
Markhoz Goat, Semen Characteristics, Testosterone, Lactate Dehydrogenase
2016/5/9
This experiment was conducted to study variations of serum testosterone and seminal characteristics of Markhoz male goats. Blood samples were obtained via jugular vein, and semen was collected by usin...
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 ...