[Evaluation of cattle reproductive and milk qualities on the basis of genetic analyses data for the improvement of animals health]

Petrova, A. . Research Centre "Sigra"

[Evaluation of cattle reproductive and milk qualities on the basis of genetic analyses data for the improvement of animals health]

1998

Petrova, A. (Latvian Univ. of Agriculture, Sigulda (Latvia). Research Centre "Sigra")

The aim of the research was to evaluate the heredity of resistance to mastitis in cows of different genotypes. The main task was to find out the genetic and non-genetic factors influencing the resistance. Investigations were carried out from March 1997 to March 1998. The results show that the resistance to mastitis is influenced by the level of cows' productivity, the milk flow intensity and the genotype of animals. It is stated that resistance to mastitis is not the only factor to be considered in selecting the herd. Other important factors are milk yield and fat content in it.

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Mots clés AGROVOC

cow milk dairy cows genetica genetics genotipos genotypes grasa de la leche hatos herds lait de vache latvia leche de vaca letonia lettonie mammite mastitis milk fat milk yield productividad productivity recherche rendement laitier rendimiento lechero reproduction research troupeau vacas lecheras

Informations bibliographiques

Editeur

Research Centre "Sigra"

Pagination

p. 10-11

D'autres materias

Investigacion; Matiere grasse du lait; Reproduccion; Vache laitiere; Genotype; Genetique; Productivite

Langue

letton

Note

Summary (Lv)

Titre traduit

Liellopu reproduktivo un piena ipasibu novertesana, balstoties uz veterinaras genetikas analizu datiem dzivnieku veselibas uzlabosana

Type

Summary; Non-Conventional

Source

[Improvement of productive animals and poultry reared in Latvia by using world approbate selection methods. Research materials of the programme], Latvian Univ. of Agriculture, Sigulda (Latvia). Research Centre "Sigra"; State Animal Husbandry Experimental Station "Latgale", Radopole (Latvia).- Sigulda (Latvia): Research Centre "Sigra", 1998. 27 p.

Sur AGRIS depuis: 1999-08-15

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[Evaluation of cattle reproductive and milk qualities on the basis of genetic analyses data for the improvement of animals health]

1998

Mots clés AGROVOC

Informations bibliographiques