RELATIONSHIP BETWEEN MILK SOLIDS YIELD EFFICIENCY AND POSTPARTUM BODY WEIGHT IN A PASTORAL DAIRY FARM IN CHILE
ABSTRACT In Chile, dairy industries pay for raw milk based on kg of milk solids (fat + protein). Productive efficiency can be defined as kg of milk solids per unit of land, and it is necessary to use biologically efficient cows to achieve high productive efficiency. Productive efficiency was defined...
Guardado en:
| Autores principales: | , |
|---|---|
| Lenguaje: | English |
| Publicado: |
Universidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias Veterinarias
2019
|
| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902019000300274 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:scielo:S0719-38902019000300274 |
|---|---|
| record_format |
dspace |
| spelling |
oai:scielo:S0719-389020190003002742020-01-29RELATIONSHIP BETWEEN MILK SOLIDS YIELD EFFICIENCY AND POSTPARTUM BODY WEIGHT IN A PASTORAL DAIRY FARM IN CHILEUribe,HéctorGonzález,Humberto efficiency genetic correlation milk solids body weight ABSTRACT In Chile, dairy industries pay for raw milk based on kg of milk solids (fat + protein). Productive efficiency can be defined as kg of milk solids per unit of land, and it is necessary to use biologically efficient cows to achieve high productive efficiency. Productive efficiency was defined as kg of milk solids output per kg of cow metabolic postpartum body weight. Genetic and phenotypic correlations between productive efficiency and postpartum body weight were estimated. Data were obtained from a research farm in Los Lagos region of southern Chile. A bivariate mixed linear model was used to estimate (co)variance components of the traits. Heritability estimates for productive efficiency and postpartum body weight were 0.35 ± 0.05 y 0.33 ± 0.05, respectively. Genetic and phenotypic correlations between the same traits were -0.65 ± 0.09 and -0.70 ± 0.12, respectively. It is concluded that there exists additive genetic variation for productive efficiency, which can be used in genetic selection programs, and there is an undesirable association between postpartum body weight and productive efficiency.info:eu-repo/semantics/openAccessUniversidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias VeterinariasChilean journal of agricultural & animal sciences v.35 n.3 20192019-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902019000300274en10.4067/S0719-38902019005000503 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
efficiency genetic correlation milk solids body weight |
| spellingShingle |
efficiency genetic correlation milk solids body weight Uribe,Héctor González,Humberto RELATIONSHIP BETWEEN MILK SOLIDS YIELD EFFICIENCY AND POSTPARTUM BODY WEIGHT IN A PASTORAL DAIRY FARM IN CHILE |
| description |
ABSTRACT In Chile, dairy industries pay for raw milk based on kg of milk solids (fat + protein). Productive efficiency can be defined as kg of milk solids per unit of land, and it is necessary to use biologically efficient cows to achieve high productive efficiency. Productive efficiency was defined as kg of milk solids output per kg of cow metabolic postpartum body weight. Genetic and phenotypic correlations between productive efficiency and postpartum body weight were estimated. Data were obtained from a research farm in Los Lagos region of southern Chile. A bivariate mixed linear model was used to estimate (co)variance components of the traits. Heritability estimates for productive efficiency and postpartum body weight were 0.35 ± 0.05 y 0.33 ± 0.05, respectively. Genetic and phenotypic correlations between the same traits were -0.65 ± 0.09 and -0.70 ± 0.12, respectively. It is concluded that there exists additive genetic variation for productive efficiency, which can be used in genetic selection programs, and there is an undesirable association between postpartum body weight and productive efficiency. |
| author |
Uribe,Héctor González,Humberto |
| author_facet |
Uribe,Héctor González,Humberto |
| author_sort |
Uribe,Héctor |
| title |
RELATIONSHIP BETWEEN MILK SOLIDS YIELD EFFICIENCY AND POSTPARTUM BODY WEIGHT IN A PASTORAL DAIRY FARM IN CHILE |
| title_short |
RELATIONSHIP BETWEEN MILK SOLIDS YIELD EFFICIENCY AND POSTPARTUM BODY WEIGHT IN A PASTORAL DAIRY FARM IN CHILE |
| title_full |
RELATIONSHIP BETWEEN MILK SOLIDS YIELD EFFICIENCY AND POSTPARTUM BODY WEIGHT IN A PASTORAL DAIRY FARM IN CHILE |
| title_fullStr |
RELATIONSHIP BETWEEN MILK SOLIDS YIELD EFFICIENCY AND POSTPARTUM BODY WEIGHT IN A PASTORAL DAIRY FARM IN CHILE |
| title_full_unstemmed |
RELATIONSHIP BETWEEN MILK SOLIDS YIELD EFFICIENCY AND POSTPARTUM BODY WEIGHT IN A PASTORAL DAIRY FARM IN CHILE |
| title_sort |
relationship between milk solids yield efficiency and postpartum body weight in a pastoral dairy farm in chile |
| publisher |
Universidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias Veterinarias |
| publishDate |
2019 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902019000300274 |
| work_keys_str_mv |
AT uribehector relationshipbetweenmilksolidsyieldefficiencyandpostpartumbodyweightinapastoraldairyfarminchile AT gonzalezhumberto relationshipbetweenmilksolidsyieldefficiencyandpostpartumbodyweightinapastoraldairyfarminchile |
| _version_ |
1714207173175672832 |