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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、...
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...
Performance and milk composition of dairy goats as affected by the dietary level of stoned olive cake silages
toned Olive Cake Silages Fatty Acid Composition Goat Milk Phenolic Compounds
2017/3/9
The current study compared the effects of dietary levels of two phase stoned olive cake (OC) in form of silage (OCS) on milk production and quality of Saanen goats.
Effects of selenium-rich yeast supplementation on the plasma progesterone levels of postpartum dairy cows
Cow Postpartum Progesterone Reproduction Selenium
2017/3/9
The effects of the pre- and postpartum supplementation of cows with Se on their plasma P4 concentrations after calving were investigated.
Effect of inclusion of different levels of Leucaena silage on rumen microbial population and microbial protein synthesis in dairy steers fed on rice straw
Dairy Steers Leucaena Silage Microbial Population Microbial Protein Synthesis Rice Straw
2017/3/8
Leucaena leucocephala (Leucaena) is a perennial tropical legume that can be directly grazed or harvested and offered to ruminants as hay, silage, or fresh. However, Leucaena contain phenolic compounds...
The influence of milking on the teat canal of dairy cows determined by ultrasonographic measurements
ultrasonography udder teat regeneration milking traits
2017/2/21
The effect of milking on the length and diameter of the teat canal during teat regeneration immediately after milking was evaluated. The practical measurements of the teat canal were performed on 70 H...
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...
Corpus luteal angiogenesis in a high milk production dairy breed differs from that of cattle with lower milk production levels
Holstein Friesian dairy cows dual purpose cows corpus luteum vascularisation capillary angiogenesis
2016/10/14
Globally, high producing, young dairy cows often have health and fertility problems such as ovarian, uterine and placental dysfunction, mastitis and impaired wound healing. These health issues can res...
Co-infection with bovine viral diarrhoea virus and Anaplasma marginale in a dairy cattle herd may lead to acute bovine anaplasmosis
BVDV mixed infection epidemiological investigation immunosuppression outbreak
2016/10/14
This report describes an acute exacerbation of subclinical anaplasmosis manifesting itself in clinical signs in a large number of animals after infection with bovine viral diarrhoea virus (BVDV). The ...
Effects of erythromycin on milk yield, rumen contraction rate and blood beta-hydroxybutyrate concentration in dairy cows after laparoscopic reposition of the left displaced abomasum
cattle dislocatio abomasi endoscopy prokinetic drugs gastrointestinal mobility
2016/9/1
The objective of this study was to evaluate the beneficial effects of erythromycin (Emy), a prokinetic drug active at the level of the abomasum, duodenum and proximal duodenum, in dairy cows undergoin...
Improvement of Milk Fatty Acid Composition for Production of Functional Milk by Dietary Phytoncide Oil Extracted from Discarded Pine Nut Cones (Pinus koraiensis) in Holstein Dairy Cows
Dairy Cow Fatty Acids Feed Additive Milk Phytoncide Oil
2016/12/28
This study was conducted to examine the effects of adding phytoncide oil extracted from Korean pine nut cone byproduct to the diet of dairy cows on milk yield and compositions, fatty acid characterist...
Therapeutic effects of a combined antibiotic-enzyme treatment on subclinical mastitis in lactating dairy cows
mastitis Staphylococcus aureus biofilm enzyme-antibiotic treatment genomic DNA ica genes
2016/6/3
The objective of this study was to evaluate a combined antibiotic-enzyme therapy for Staphylococcus aureus mastitis and biofilm formation. A total of 141 cases of S. aureus chronic mastitis from three...
Imputation Accuracy from Low to Moderate Density Single Nucleotide Polymorphism Chips in a Thai Multibreed Dairy Cattle Population
Imputation Accuracy Linkage Disequilibrium Multibreed Dairy Cattle
2016/5/19
The objective of this study was to investigate the accuracy of imputation from low density (LDC) to moderate density SNP chips (MDC) in a Thai Holstein-Other multibreed dairy cattle population. Dairy ...
H-Nuclear Magnetic Resonance-Based Plasma Metabolic Profiling of Dairy Cows with Fatty Liver
Dairy Cow Fatty Liver H-Nuclear Magnetic Resonance Metabolomics Plasma
2016/5/19
Fatty liver is a common metabolic disorder of dairy cows during the transition period. Historically, the diagnosis of fatty liver has involved liver biopsy, biochemical or histological examination of ...
Effects of Monensin on Metabolism and Production in Dairy Saanen Goats in Periparturient Period
Monensin Dairy Goats Saanen Metabolism
2016/5/11
This trial evaluated the effects of dietary supplementation with monensin sodium on dry matter intake, metabolic parameters and milk yield and milk composition of dairy Saanen goats in the periparturi...