The influence of surrounding on the shape of the lactation curve [cows]

Zabric, E. . VTOZD za zivinorejo

The influence of surrounding on the shape of the lactation curve [cows]

1987

Zabric, E. (Biotehniska fakulteta, Domzale (Yugoslavia). VTOZD za zivinorejo)

The coefficient of Woods formula y = a tb e-ct were calculated for the data of 346 cows. The formula was used for calculation of milk production in 305 days, peak-yield day and peak yield for each of the cows. The influence of herd production, lactation, breed and season of freshening was studied. The coefficients a,b,c were calculated for different groups of cows. Because of the lack of data they were too nondependable.

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AGROVOC Keywords

facteur du milieu factores ambientales lactation lait leche race razas rendement laitier rendimiento lechero saison vacas lecheras

Bibliographic information

Published in

Zbornik Biotehniske fakultete Univerze Edvarda Kardelja v Ljubljani (Yugoslavia) | Kmetijstvo

ISSN 0459-6404

Pagination

pp. 689-698

Other Subjects

Yougoslavie/ troupeau; Lactacion; Estaciones del ano; Mathematique; Vache laitiere; Datos de produccion; Matematicas; Donnee de production; Yugoslavia/ hatos

Language

Slovenian

Note

2 graphs; 5 tables; 5 ref. Summaries (En, Sl)

Type

Conference; Summary

Conference

8th Yugoslav international symposium on modern milk production and processing, Portoroz (Yugoslavia), May 1987

In AGRIS since: 1991-08-15

Format: AGRIS AP

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The influence of surrounding on the shape of the lactation curve [cows]

1987

AGROVOC Keywords

Bibliographic information