搜索结果: 1-15 共查到“动物学 Yield”相关记录28条 . 查询时间(0.041 秒)
Impact of glucogenic additive in transition dairy cow diets of varying ruminal starch degradability on yield and composition of milk and reproductive parameters
cows transition period glucogenic additive propylene glycol
2015/6/23
A two-factorial experiment was carried out on 6 groups (10 animals each) of Polish Black
and White Holstein-Friesian cows in the transition period to determine the effect of glucogenic additive
(G...
Factors affecting ewe’s milk fat and protein content and relationships between milk yield and milk components
sheep milk composition environmental effects correlations lactation curves
2015/6/4
Test-day records of purebred Tsigai, Improved Valachian and Lacaune ewes were used to analyse the effect of environmental factors on milk fat and protein content. There were 121 424 and 121 158 measur...
Genetic Parameters for Milk Yield and Lactation Persistency Using Random Regression Models in Girolando Cattle
Lactation Persistency Legendre’s Polynomials Random Regression Model Cattle
2016/5/19
A total of 32,817 test-day milk yield (TDMY) records of the first lactation of 4,056 Girolando cows daughters of 276 sires, collected from 118 herds between 2000 and 2011 were utilized to estimate the...
Responses to Starch Infusion on Milk Synthesis in Low Yield Lactating Dairy Cows
Metabolic Parameter mRNA Abundance Glucose Tolerance Test Dairy Cows
2016/5/18
The effect of starch infusion on production, metabolic parameters and relative mRNA abundance was investigated in low yield lactating cows from 86 days in milk. Six Holstein cows fitted with permanent...
Genetic Analysis of Milk Yield in First-Lactation Holstein Friesian in Ethiopia: A Lactation Average vs Random Regression Test-Day Model Analysis
Dairy Cattle Genetic Parameters Random Regression Test-Day Model Test-Day Records
2016/5/18
The development of effective genetic evaluations and selection of sires requires accurate estimates of genetic parameters for all economically important traits in the breeding goal. The main objective...
Comparison of Milk Yield and Animal Health in Turkish Farms with Differing Stall Types and Resting Surfaces
Resting Surface Stall Type Milk Yield Cattle Health Problems
2016/5/17
The current study was carried out to determine the influence of different resting surfaces and stall types on milk yield and animal health. Study was carried out in Bursa that is one of the most impor...
Ovarian Follicular Dynamics, Ovarian Follicular Growth, Oocyte Yield, In vitro Embryo Production and Repeated Oocyte Pick Up in Thai Native Heifers Undergoing Superstimulation
FSH Follicle OPU COCs IVP Cattle
2016/5/11
The objective of this study was to compare the effectiveness of the protocols for superstimulation of follicular growth in Thai native heifers. Heifers (n = 20) were randomly divided into four groups ...
Factors Influencing Genetic Change for Milk Yield within Farms in Central Thailand
Tropic Dairy Cattle Dairy Farmer Selection Breeding
2016/5/6
The objective of this study was to characterize factors influencing genetic improvement of dairy cattle for milk production at farm level. Data were accumulated from 305-day milk yields and pedigree i...
Effects of Fermented Total Mixed Ration and Cracked Cottonseed on Milk Yield and Milk Composition in Dairy Cows
Fermented Total Mixed Ration Whole Cottonseed Dairy Cow
2016/5/3
Four lactating Holstein Friesian crossbred cows, with an average initial weight of 450 kg, 4812 days in milk and initial milk yield of 18 kg/h/d, were randomly arranged according to a 2...
Genetic Evaluation and Calculating Daughter Yield Deviation of Bulls in Iranian Holstein Cattle for Milk and Fat Yields
Daughter Yield Deviation Genetic Evaluation Genetic Trend Holstein Cows
2016/4/29
This study was aimed at a genetic evaluation of Iranian Holstein cattle for milk and fat yields and calculating daughter yield deviation (DYD) of bulls. The data file that was used in this research in...
Effect of Cattle Slurry on Growth, Biomass Yield and Chemical Composition of Maize Fodder
Cattle Slurry Biomass Yield Nutrient Content Maize Fodder
2016/4/28
An experiment was carried out to study the effect of cattle slurry on maize fodder (Zea mays) production. Maize fodder was produced at 4 cattle slurry levels T0 (0 ton/ha), T1 (10 ton/ha), T2 (12 ton/...
Polymorphism of Growth Hormone GH1-AluI in Jersey Cows and Its Effect on Milk Yield and Composition
Growth Hormone Polymorphism Jersey Milk Traits
2016/4/27
To analyze genetic effects on milk production traits, 164 unrelated Italian Jersey cows reared in 15 farms located in Southern Italy were characterized at the growth hormone locus. Using a Polymerase ...
Influence of Varying Level of Sodium Bicarbonate on Milk Yield and Its Composition in Early Lactating Nili Ravi Buffaloes
Early Lactating Buffaloes Sodium Bicarbonate Nitrogen Balance Milk Yield and Composition
2016/4/27
Influence of varying level of sodium bicarbonate (SB) supplementation on milk yield and its composition was examined in a randomized complete block design in early lactating Nili Ravi buffaloes during...
The Yield and Composition of Milk from Transgenic Rabbits
Rabbit Transgenic Milk Yield mWAP-hFVIII Gene
2016/4/25
Basic objective of this research was to compare the milk yield and composition of New Zealand White transgenic rabbit females expressing recombinant human factor VIII (hFVIII) in mammary gland during ...
Genetic Persistency of First Lactation Milk Yield Estimated Using Random Regression Model for Indian Murrah Buffaloes
Indian Murrah Buffaloes Wilmink Function Daily Breeding Values Genetic Persistency
2016/4/22
A random regression model was applied for the first time for the analysis of test day records and to study the genetic persistency of first lactation milk yield of Indian Murrah buffaloes. Wilmink??s ...