The objective of this study was to estimate genetic correlations between yield traits of cows treated with bovine somatotropin (bST) and the same yield traits of untreated cows. Lactation records from registered Holstein cows were divided by parity into 3 data sets: 1, 2, and 3 through 5. Approximately 10 % of the records in each data set were from cows treated with bST. The numbers of records of treated and untreated cows in the data sets were 4,337 and 48,765; 3,730 and 37,796; and 3,645 and 33,957. Two-trait animalmodels (records for cows treated or not treated) were used to estimate genetic parameters for milk production traits and so-matic cell score (SCS). Estimates of heritability formilk yield for records of treated and untreated co...
Twenty type classifiers scored body condition (BCS) of 91,738 first-parity cows from 601 sires and 5...
The objective of this study was to determine the genetic parameters represented by heritability for ...
Genetic parameters and breeding values for dairy cow fertility were estimated from 62 443 lactation ...
Records of registered Holstein cows for milk, fat, and protein yields and somatic cell score (SCS) w...
The objective of this study was to estimate genetic correlations between yield traits of cows treate...
Records of 142,937 of registered and grade Holstein cows for yield traits and somatic cell scores (S...
The objective was to estimate genetic parameters and lactation curves for cows treated or not treate...
Records of Holstein cows from the Dairy Records Processing Center at Raleigh, NC were edited to obta...
Predicted breeding values (PBV) for dairy cattle may be biased when DHI records of bST-treated cows ...
Records of Holstein cows were used to examine how different models account for the effect of bovine ...
Records from Dairy Records Pro .• cessing Center at Raleigh, N.C~,. were analyzed to detect the effe...
<p>The objective of this work was to study the influence of the use of bovine somatotropin (bST) on ...
The Dairy Information System (DAISY) was developed to record fertility and health information for us...
The aim of this study was to estimate the genetic parameters of somatic cell count (SCC) and its rel...
The aim of this study was to estimate the genetic parameters of somatic cell count (SCC) and its rel...
Twenty type classifiers scored body condition (BCS) of 91,738 first-parity cows from 601 sires and 5...
The objective of this study was to determine the genetic parameters represented by heritability for ...
Genetic parameters and breeding values for dairy cow fertility were estimated from 62 443 lactation ...
Records of registered Holstein cows for milk, fat, and protein yields and somatic cell score (SCS) w...
The objective of this study was to estimate genetic correlations between yield traits of cows treate...
Records of 142,937 of registered and grade Holstein cows for yield traits and somatic cell scores (S...
The objective was to estimate genetic parameters and lactation curves for cows treated or not treate...
Records of Holstein cows from the Dairy Records Processing Center at Raleigh, NC were edited to obta...
Predicted breeding values (PBV) for dairy cattle may be biased when DHI records of bST-treated cows ...
Records of Holstein cows were used to examine how different models account for the effect of bovine ...
Records from Dairy Records Pro .• cessing Center at Raleigh, N.C~,. were analyzed to detect the effe...
<p>The objective of this work was to study the influence of the use of bovine somatotropin (bST) on ...
The Dairy Information System (DAISY) was developed to record fertility and health information for us...
The aim of this study was to estimate the genetic parameters of somatic cell count (SCC) and its rel...
The aim of this study was to estimate the genetic parameters of somatic cell count (SCC) and its rel...
Twenty type classifiers scored body condition (BCS) of 91,738 first-parity cows from 601 sires and 5...
The objective of this study was to determine the genetic parameters represented by heritability for ...
Genetic parameters and breeding values for dairy cow fertility were estimated from 62 443 lactation ...