搜索结果: 16-30 共查到“知识库 特种经济动物饲养学”相关记录85条 . 查询时间(1.134 秒)
Airborne noise, structure-borne sound (vibration) and vacuum stability of milking systems
milking stress milking machine
2015/6/5
Problems with milking and udder health can be attributed to the following causes: (1) sound intensity level (noise) > 65 dB in the milking area, (2) transmission of oscillation (vibration) > 0.3 m/s2 ...
Possibilities of using dairy compounds exposed to different treatments in dairy cow feeding
dairy compound feed protected protein tannic acid
2015/6/1
This study was conducted to investigate the effects of untreated dairy compound feeds; DCF (control) and DCFs subjected to 2% fat (F); 2.5% tannic acid (TA); 2% fat + 2.5% tannic acid (F + TA) on the ...
Effects of probiotic bacteria on the performance of arctic foxes, pathomorphology and microflora of their alimentary tracts
arctic fox nutrition probiotic
2015/6/1
Studies on the use of Enterococcus faecium and Lactobacillus acidophilus cultures in arctic fox nutrition were performed on 80 foxes, in the period from weaning to the end of growth and fur developmen...
Monitoring of physical activity for management of cow reproduction
cow physical activity pedometers
2015/6/1
The objective of this paper was to assess by means of pedometers the period of anoestrus in a herd where the calving interval was 400 days and to detect the influence of some factors (breed, year, sea...
Main sources of the economic efficiency of beef cattle production systems
beef cattle production systems marketing strategies
2015/6/1
The economic efficiency of several beef production systems on pasture was investigated under different marketing strategies. All calculations were carried out with the computer program ECOWEIGHT. None...
Effects of rearing, sire and calving season on growth and milk efficiency in dairy cows
dairy cows rearing sire
2015/6/1
32 primiparous cows were used. We tested the hypotheses that live weight and milk efficiency were influenced by the system of rearing from the second week of life to weaning, by the sire, and by the s...
Effects of different forage-containing rations on metabolic parameters and milk yield in the peripartum of Holstein cows
hay silage forage
2015/6/1
To evaluate the forage effects on performance and metabolic parameters, 24 Holsteins were randomly fed one of the diets containing a forage mixture with majority of alfalfa hay (AH), alfalfa silage (A...
Single nucleotide polymorphism (SNP) in the 5?noncoding region of the bovine growth hormone receptor gene and its association with dairy production traits in Polish Black-and-White cattle
cattle GHR gene
2015/6/1
The effects of cow抯 genotype for growth hormone receptor (GHR) were determined on milk production traits of the Polish Black-and-White (BW) cattle. It was shown that GHR genotypes significantly influe...
Technologically difficult, pathogenic and food risky bacterial contamination of raw milk and other materials from dairy cow herds
dairy cow hygiene rough fodder
2015/6/1
Processing of milk for higher value-added products and milk food chain safety require prevention of higher occurrence of microorganisms that can produce spores. It is important to carry out prevention...
Factors affecting goat milk yield and its composition
Czech White Shorthaired goat fat protein
2015/6/1
The aim of the paper was to prove the accuracy of various statistical models of vari璦nce analysis for estimation of systematic factors that influence milk yield and fat and protein content in dairy go...
Residual pharmaceutically active compounds (PhACs) in aquatic environment – status, toxicity and kinetics: a review
residual PhACs aquatic environment status
2015/4/1
Awareness of residual pharmaceutically active compounds (PhACs) in aquatic ecosystems is growing as research into these pollutants increases and analytical detection techniques improve. For most pharm...
The effects of partial replacement of corn silage on biochemical blood parameters in lactating primiparous dairy cows
forage sources corn silage blood cows
2015/4/1
The aim of this experiment was to investigate the effects of partial replacement of corn silage with long alfalfa hay and/or coarse chopped wheat straw on biochemical parameters in late lactating Hols...
Effects of Copper and Selenium Supplementation on Performance and Lipid Metabolism in Confined Brangus Bulls
Cattle Cholesterol Fatty Acids Minerals Nutrition
2016/5/16
Twenty-eight Brangus cattle were used to determine the effect of copper and selenium supplementation on performance, feed efficiency, composition of fatty acids in Longissimus dorsi (LD) muscle, and c...
糖基化反应改善大豆抗原蛋白功能特性的研究进展
糖基化 大豆抗原蛋白 功能特性
2015/11/6
大豆含有丰富的营养成分，被广泛应用于食品和饲料行业，但大豆中的抗原蛋白对人和动物有一定的致敏作用而不利于吸收和利用，有时甚至导致幼龄动物的死亡。因而改善大豆抗原蛋白功能特性及去除抗原蛋白的致敏性便成为了研究的热点。该文围绕蛋白质糖基化方法可安全有效的改善蛋白质功能性质这一特性，综述了糖基化方法对大豆抗原蛋白功能特性影响的相关研究，以期对大豆抗原蛋白的后续深入研究提供理论参考。