搜索结果: 1-15 共查到“动物营养学 dairy”相关记录31条 . 查询时间(0.046 秒)
基于CPM-Dairy软件评估饲粮有效营养价值对荷斯坦奶牛生产性能预测的有效性及瘤胃微生物区系和血清生化指标的影响
CPM-Dairy软件 奶牛 瘤胃微生物区系 代谢能 代谢蛋白质 玉米淀粉
2020/11/4
本试验旨在通过对奶牛血清生化指标、瘤胃发酵参数与微生物区系及生产性能的综合评判，研究基于CPM （Cornell-Penn-Miner）-Dairy软件评估饲粮有效营养价值进行荷斯坦奶牛生产性能预测的有效性，为CPM-Dairy软件在奶牛饲料生产中的应用提供理论依据。采用4×4拉丁方试验设计，选择4头体况接近的奶牛，分别饲喂4种不同玉米淀粉添加量（0、300、600及900 g/d），但泌乳净能、...
Nutrient production from dairy cattle manure and loading on arable land
Dairy Cattle Manure Composting Weight Reduction Nutrient Loss Nutrient Loading Coefficients
2017/3/8
Along with increasing livestock products via intensive rearing, the accumulation of livestock manure has become a serious issue due to the fact that there is finite land for livestock manure recycling...
Effect of Grape Pomace Powder, Mangosteen Peel Powder and Monensin on Nutrient Digestibility, Rumen Fermentation, Nitrogen Balance and Microbial Protein Synthesis in Dairy Steers
Monensin Microbial Protein Synthesis Rumen Fermentation Dairy Steers
2016/11/10
This study was designed to investigate the effect of grape pomace powder (GPP), mangosteen peel powder (MPP) and monensin on feed intake, nutrients digestibility, microorganisms, rumen fermentation ch...
Conditions for cold stress development in dairy cattle kept in free stall barn during severe frosts
winter cows wind chill milk production housing
2015/7/7
The impact of low temperatures combined with higher velocity of ventilated air in winter during
severe frost in a free stall barn on the development of cold stress in Holstein-Friesian breed dairy c...
Relationships between the results of hypo-osmotic swelling tests, sperm motility, and fertility in Estonian Holstein dairy bulls
bull fertility semen quality sperm membrane intactness
2015/6/23
However, the HOS-2 and HOS-3 values in FT semen
had high correlations with NRR (r = 0.65, r = 0.66, P < 0.001 at batch level and r = 0.63, r = 0.71, P < 0.01
at bull level), which was comparable t...
Non-structural carbohydrates in the nutrition of high-yielding dairy cows during a transition period
dairy cows NFC dry matter intake milk performance transition period
2015/6/8
The main aim of this study was to investigate experimentally the effect of different composition of non-structural carbohydrates (NFC) in prepartum feed rations administered to high-yielding dairy cow...
The Effect of Yerba Mate (Ilex Paraguariensis) Supplementation on Nutrient Degradability in Dairy Cows: An In sacco and In vitro Study
Dairy Cows Degradability In vitro In sacco Yerba Mate Tannins
2016/5/19
This study was carried out to investigate the effects of Yerba Mate (YM) supplementation on nutrients’ degradation, in vitro dry matter disappearance, gas production and rumen ammonia concentration. T...
Mineral Metabolism in Singleton and Twin-pregnant Dairy Goats
Fetuses Genotype Maternal Body Reserves Mineral Retention
2016/5/17
During pregnancy, the maternal body undergoes significant physiological changes. The present study assessed the changes on calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na) and potassium (K) m...
Factors affecting somatic cell count in dairy goats: a review
milk quality mastitis benchmarking
2014/10/23
Somatic cell count (SCC) in monitoring udder health has been described in numerous studies as a useful method for the diagnosis of intramammary infection (IMI), and it is considered in standards of qu...
基于CPM-Dairy的几种我国常用奶牛饲料原料聚类分析
CPM-Dairy 数据库 聚类分析 CNCPS
2013/11/4
本试验依据康奈尔大学净碳水化合物净蛋白质体系(CNCPS)和CPM-Dairy配方软件的技术思想,对几种我国常用奶牛饲料原料进行聚类分析。采用近红外分析和实验室分析对4大类[苜蓿干草、干酒糟及其可溶物(DDGS)、玉米粉和玉米青贮],共1 169个我国常用奶牛饲料样品的16类指标进行测定,用聚类分析的方法对样品科学分类。结果表明,用聚类分析的方法,根据不同饲料的特点,分别将苜蓿干草分为12类、DD...
Nutrition-induced Changes of Growth from Birth to First Calving and Its Impact on Mammary Development and First-lactation Milk Yield in Dairy Heifers: A Review
Cattle Heifer Growth Mammary Development Milk Yield
2016/5/10
This review focuses on the nutritional effects from birth until age at first calving on growth, mammary developmental changes, and first-lactation milk yield in heifer calves. The advancement in the g...
The Nutritive Value of Live Yeast Culture (Saccharomyces cerevisiae) and Its Effect on Milk Yield, Milk Composition and Some Blood Parameters of Dairy Cows
Live Yeast Culture Milk Production Milk Quality Characteristics Blood Plasma Metabolites Lactating Cow
2016/5/9
This study was conducted to determine the nutritive value of live yeast culture (RumiSacc, Saccharomyces cerevisiae) and to investigate its effects on milk yield, milk composition and some blood param...
Effects of Energy Intake on Performance, Mobilization and Retention of Body Tissue, and Metabolic Parameters in Dairy Cows with Special Regard to Effects of Pre-partum Nutrition on Lactation - A Review
Dry Matter Intake Milk Production Dry Period Health Mobilization Metabolic Parameters
2016/5/6
The present review focuses on the effects of energy intake on performance, changes in body tissue during lactation, and metabolic parameters in dairy cows. Especially, pre-partum nutrition and its inf...
Oxidative Stress and Antioxidant Status during Transition Period in Dairy Cows
Antioxidative Enzymes Oxidative Stress Production Diseases Transition Period Dairy Cow
2016/5/6
The study was conducted on 20 Holstein X Sahiwal cross bred dairy cows, with an average milk production of 2,752113.79 liters in 2845.75 days during a single lactation, that were divid...
Effect of estrus synchronization on dairy goat milk composition
Agricultural instrument machinery and tractor assets
2011/1/11
The aim of this study was to determine the factors affecting the agricultural instrument, machinery and tractor assets of the enterprises in the central district villages of Erzurum province and the m...