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微卫星标记与奶牛数量性状QTL定位Mapping Quantitative Trait Loci for Quantitative Traits in Dairy Cattle Using Microsatellite Markers
奶牛 数量性状基因座 微卫星标记
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2007/12/30
摘要本文对奶牛产奶性能（产奶量、乳脂率、乳脂量、蛋白率、蛋白量）、乳房炎及体细胞数、繁殖性能、生产寿命等数量性状QTL定位研究进展进行了综述。
Abstract:Mapping of quantitative trait loci for some important traits (milk yield,fat percentage,fat yield,protein percentage,p...
Estimation of Ruminal Degradation and Intestinal Digestion of Tropical Protein Resources Using the Nylon Bag Technique and the Three-step In vitro Procedure in Dairy Cattle on Rice Straw Diets
Rumen Degradability Rumen By-pass Protein In sacco Three-step Technique Protein Sources Digestibility Rice Straw Cassava Hay
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2016/4/27
The experiment was carried out using fistulated multiparous Holstein Friesian crossbred (75% Holstein Friesian and 25% Red Sindhi) dairy cows in their dry period fed on untreated rice straw to evaluat...
Year-round Monitoring of Verotoxin-producing Escherichia coli from Feces of Dairy Cattle
Dairy Cattle Feces Verotoxin Genes Escherichia coli PCR Detection Diet Change
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2016/4/25
A PCR-aided monitoring of verotoxin-producing Escherichia coli (VTEC) was performed over the period of 12 months by using fresh feces collected monthly from 5 dairy cows that had been identified as VT...
Association between SNPs within Prolactin Gene and Milk Performance Traits in Holstein Dairy Cattle
Holstein Dairy Cattle Prolactinx Prolactin Haplotype SNPs Milk Performance Traits
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2016/4/22
Prolactin plays an important role in mammary gland development, milk section initiation and maintenance of lactation, so the bovine prolactin gene is considered as a potential quantitative trait locus...
Effects of Varying Levels of Whole Cottonseed on Blood, Milk and Rumen Parameters of Dairy Cows
Whole Cottonseed Dairy Cow Rumen Blood
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2016/4/21
Four lactating Holstein cows were used in a 4횞4 Latin-square design to determine the effects of various levels of whole cottonseed (WCS) in diets on parameters including milk (yield and fat con...
Effects of Urea Level and Sodium DL-malate in Concentrate Containing High Cassava Chip on Ruminal Fermentation Efficiency, Microbial Protein Synthesis in Lactating Dairy Cows Raised under Tropical Condition
Urea Sodium DL-malate Rumen Fermentation Cassava Chip Urea-treated Rice Straw Tropical Dairying
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2016/4/21
Four, lactating dairy cows were randomly assigned according to a 2횞2 Factorial arrangement in a 4횞4 Latin square design to study supplementation of urea level (U) at 2 and 4% and sodium ...
Relationship between the Polymorphisms of 5''Regulation Region of Prolactin Gene and Milk Traits in Chinese Holstein Dairy Cows
Prolactin (PRL) PCR-RFLP PCR-SSCP Milk Traits
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2016/4/21
Prolactin (PRL) plays an important role in promoting mammalian mammary gland development, and milk production during lactation. Therefore the PRL gene was chosen as a candidate gene for milk traits in...
Dietary Fatty Acid Supplementation during Transitional Period Increases Milk Production in Dairy Cows
Dairy Cows Dietary Fatty Acids Milk Production Milk Composition Plasma Constituents
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2016/4/19
The effect of dietary fatty acid supplementation on milk production, milk composition and plasma constituents in dairy cows was examined. Dietary fatty acids including mainly palmitic acid and stearic...
Prevalence of Lymphocyte Nuclear Pockets in Holstein-Friesian Dairy Cattle Infected with Bovine Leukemia Virus in Korea
BLV EBL Bovine Enzootic Pocket Leukemia
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2016/4/19
The integral relationship between the occurrence of lymphocyte nuclear pockets (LNPs) and BLV-infection was examined in Holstein-Friesian dairy cattle in Korea. Transmission electron microscope (TEM) ...
Postpartum Reproductive Management Based on the Routine Farm Records of a Dairy Herd: Relationship between the Metabolic Parameters and Postpartum Ovarian Activity
Dairy Herd Reproductive Management Metabolic Parameters Ovarian Activity
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2016/4/19
The aim of this study was 1) to confirm the practical efficiency of a routine milk P4 monitoring system for postpartum reproductive management of a dairy herd, and 2) to evaluate the relationship betw...
Polymorphism of the Promoter Region of Hsp70 Gene and Its Relationship with the Expression of HSP70mRNA, HSF1mRNA, Bcl-2mrna and Bax-AMrna in Lymphocytes in Peripheral Blood of Heat Shocked Dairy Cows
Polymorphism hsp70 Gene Dairy Cow HSP70mRNA HSF1mRNA Bcl-2mRNA
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2016/4/19
The blood samples were collected from dairy cows at the same milking stage. The single-strand conformation polymorphism (PCR-SSCP) method was used to analyze for polymorphism at the 5`-flanking region...
Characteristics of Bovine Lymphoma Caused by Bovine Leukemia Virus Infection in Holstein-Friesian Dairy Cattle in Korea
BLV EBL Bovine Enzootic Gross Finding Leukemia
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2016/4/19
The frequency and distribution of lymphoma caused by bovine leukemia virus (BLV) infection in various organs were investigated. Lymphoma samples were obtained from slaughtered cattle or from cattle su...
Studies of the Microbial and Physical Properties of Oriental Style Dairy Product Kou Woan Lao with Probiotics
Kou Woan Lao Lao-chao Probiotics Rhizopus javanicus Saccharomyces cerevisiae
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2016/4/19
The objective of this research was to combine the physiological functionality of probiotics (Lactobacillus acidophilus and Bifidobacterium longum) and the milk-clotting activity of culture filtrate fr...
Odds Ratio and Probability of Conception of Holstein Friesian Dairy Cows in the Kingdom of Saudi Arabia
Conception Odd Ratio Holstein Cattle Logistic Regression
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2016/4/18
Logistic Regression Analysis was used to compute the odds ratio (OR) and probability of conception of Holstein dairy cows of AL-MARAIE company. Data consisted of 103,778 reproductive records collected...
Association of Candidate Genes with Production Traits in Korean Dairy Proven and Young Bulls
Prolactin Hormone Polymorphisms Information Contents 305-day Production Traits Predicted Transmitting Ability
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2016/4/18
This study was performed to offer effective basic data for selection and improvement of Korean dairy cattle through identifying distributional properties among candidate genes (bovine butyrophilin, si...