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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...
Effects of Protein Level and Mangosteen Peel Pellets (Mago-pel) in Concentrate Diets on Rumen Fermentation and Milk Production in Lactating Dairy Crossbreds
Protein Level Mangosteen Peel Pellets Rumen Fermentation Milk Production Dairy Crossbreds
2016/5/10
Four, lactating dairy crossbreds (50%×50% Holstein Friesian×Native Zebu cattle) were randomly assigned according to a 2×2 factorial arrangement (two protein levels and two levels of mangosteen peel pe...
Relationships between external and internal udder measurements and the linear scores for udder morphology traits in dairy sheep
Tsigai Improved Walachian Lacaune ewe mammary gland cistern
2015/6/2
Udder morphology traits were measured and subjectively assessed by the use of linear scores in 266 ewes of Tsigai (T), Improved Walachian (IW) and Lacaune (LC) dairy breeds. Animals were recorded repe...
Red & White Dairy Cattle Association（RWDCA）
Red & White Dairy Cattle Association White Dairy
2014/6/10
The RWDCA was established in 1964, based on the principles of an open herdbook and the bloodlines of the Red Holstein. Nearly fifty years later, the RWDCA is a strong and growing organization. The bre...
Factors Affecting High Mortality Rates of Dairy Replacement Calves and Heifers in the Tropics and Strategies for Their Reduction
Pre-weaning Calf Mortality Tropics Small Holder Dairy Systems
2016/5/9
The tropics is not an ideal location for calf rearing as the high temperatures and humidities introduce many potential disease problems to milk fed calves. In addition, the type of dairy farming (gene...
Effects of Using Monensin and Different Levels of Crude Protein on Milk Production, Blood Metabolites and Digestion of Dairy Cows
Monensin Crude Protein Blood Parameters Milk Production Dairy Cow
2016/5/5
Twenty-four Holstein dairy cows were used to evaluate the single and combined effects of different levels of crude protein (CP) and monensin treatment during early lactation on blood metabolites, milk...
Milk Quality and Antimicrobial Resistance against Mastitis Pathogens after Changing from a Conventional to an Experimentally Organic Dairy Farm
Organic Dairy Farm Antibiotic Resistant Mastitis Pathogens Cattle
2016/5/4
The present study was to investigate the effect of the transition from conventional to organic dairy farming on the antimicrobial resistant pattern of pathogens in milk. A farm with tie-stall manageme...
Day-to-day variation in yield, composition and somatic cell count of saleable milk in hand milked zebu dairy cattle
Zebu cow milk day-to-day variation milk composition
2010/9/10
The aim of the study was to determine the relative day-to-day variation in yield and composition of zebu cows. Ten multiparous zebu cows in day 41 ± 1.6 of lactation were used in the study. After a 14...
Effects of Feeding Extruded Soybean, Ground Canola Seed and Whole Cottonseed on Ruminal Fermentation, Performance and Milk Fatty Acid Profile in Early Lactation Dairy Cows
Extruded Soybean Ground Canola Seed Whole Cottonseed Ruminal Fermentation Milk Fatty Acid Dairy Cows
2016/4/27
Four ruminally cannulated Holstein cows averaging 43 days in milk (DIM) were used in a 4?? Latin square to determine the effect of feeding extruded soybean, ground canola seed and whole cottonseed on ...
Effects of Neutral Detergent Fiber from Rice Straw on Blood Metabolites and Productivity of Dairy Cows in the Tropics Center.
Neutral Detergent Fiber Rice Straw Dairy Cows Tropics
2016/4/20
This study aimed to assess the effects of neutral detergent fiber (NDF) from rice straw on blood metabolites and productivity of dairy cows in the tropics. Eight Holstein×indigenous (75-87.5% Holstein...
RELATIONSHIPS BETWEEN BODY MEASUREMENT OF DAIRY CALVES AT SIX MONTH OF AGES AND AGE AT FIRST CALVING AND MILK PRODUCTION
cattle milk production body measurement
2010/11/30
In this research, the relationships of between body measurements such as heart girth, body length, height at withers and chest depth at six month of ages of calves and their age at first calving and t...
Comparison of long-term selection responses of breeding policy in dairy herds
dairy cattle breeding policy selection genetic contribution economic contribution gene flow Metod
2015/6/1
Genetic and economic responses to genetic gain were evaluated for these breeding arrangements: single use of bulls under testing; single and repeated use of proved bulls for two years and for three ye...
Genetic and Environmental Deterrents to Breeding for Disease Resistance in Dairy Cattle
Breeding Strategies Disease Resistance Dairy Cattle
2016/4/13
Selection for increased milk production in dairy cows has often resulted in a higher incidence of disease and thus incurred a greater health costs. Considerable interests have been shown in breeding d...
Response to ACTH Challenge in Female Dairy Calves in Relation to Their Milk Yield
ACTH Challenge Response Cortisol FFA Insulin Glucose
2016/4/13
Attempts have been made to establish relationship between the response to ACTH challenge in female calves, growth and first lactation performance. A total of 19 Holstein calves weighing 100 kg i. v. w...