Results 101 to 110 of about 11,071 (289)
Scientific Papers Animal Science and BiotechnologiesThe objective of this study was to estimate the genetic parameters for reproductive traits in Romanian Spotted, Simmental type cattle breed using animal model.
Mircea Cătălin Rotar +3 more
doaj
EFFECTS OF DIET SUPPLEMENTATION WITH ANIONIC SALTS ON BREEDING PERFORMANCE OF DAIRY COW
Agricultura, 2018 This research proves the effects of Calving Care on reproductive performance in dairy cow, during three successive lactations, on a group of 10 Holstein Friesian cows, using the method of period research.
Marius Bogdan +2 more
doaj +1 more source
Factors Affecting Calving Interval in Dairy Herds
Journal of Dairy Science, 1976 Abstract A total of 696 calving intervals on 370 cows from four breeds in the Oklahoma State University dairy herd was used to study breeding efficiency and various factors affecting calving interval within breed. Fertility of bulls differed within breeds.
H. Slama +3 more
openaire +1 more source
Relationships Among Herd Life, Milk Production, and Calving Interval
, 1967 Whether to select for longer life in the herd or shorter calving interval depends on the genetic and phenotypic relationships among herd life, amount of milk in first lactation, and calving interval. Herd life and average calving interval are essentially
Miller, Paul +2 more
core
Effects of calving interval of dairy cows on development, metabolism and milk performance of their offspring. [PDF]
Extending the voluntary waiting period (VWP) for insemination in dairy cows is of interest to reduce the frequency of calving events and inseminate at a moment with fewer fertility problems.
Burgers, Eline +7 more
core +1 more source
Integrative Zoology, EarlyView.Asian elephant population parameters were assessed using microsatellite, SNP, and sex determination DNA markers. This represents one of the first studies in mainland Asia to demonstrate that integrating microsatellite and SNP data enhances genotyping success from degraded fecal samples, increases the number of useable samples and markers, and ...
Rachel Crouthers +5 more
wiley +1 more source
Integrative Zoology, EarlyView.The graphical abstract illustrates the comprehensive workflow of our study, from the deployment of infrared cameras at sites with high activity of four large carnivores, through data collection and assessment of activity patterns, to the prediction of time periods with potential human–large carnivore conflicts and the proposal of corresponding ...
Dong Wang +3 more
wiley +1 more source
CALVING INTERVAL IN NELORE CATTLE
, 2007 The work presents the study of 368 calving intervals data in Nelore cattle of Goiânia - Goiás. It was observed that the average calving intervals were 16.15 +/- 0.22 months.
Pato, José Magno +1 more
openaire +1 more source
Quantifying permeability of linear barriers to animal movement: The permeability R package
Methods in Ecology and Evolution, EarlyView.Abstract Animals have always navigated environments characterized by linear features that influence movement, whether rivers, ridges or ravines. Large‐scale changes in land use have led to increasing interactions with anthropogenic features, especially roads and fences.
Nicole Barbour +3 more
wiley +1 more source
Extended calving interval : why isn't a 15-month calving interval the standard in Swedish dairy production? [PDF]
Ett 15 månaders kalvningsintervall har i tidigare forskning visat sig bidra till förbättrad djurvälfärd samt ökad lönsamhet inom mjölkproduktionen.
Persson, Nathalie, Idhamre, Arvid
core