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Research article - Peer-reviewed, 2020

Milk production and lactation length in Ankole cattle and Ankole crossbreds in Rwanda

Manzi, Maximillian; Rydhmer, Lotta; Ntawubizi, Martin; Hirwa, Claire D'Andre; Karege, Callixte; Strandberg, Erling

Abstract

This study assessed daily milk yield (DMY), 100-day (MY100), and 305-day (MY305) milk yield, and lactation length (LL) in purebred Ankole cattle and Ankole crossbreds, and the influence of environmental factors on these traits. Milk yield data were obtained for 865 cows and 1234 lactations and analyzed using a mixed linear model. The overall least squares mean of DMY, MY100, and MY305 across breed groups was 2.7 L (N = 1234, SD = 1.7), 262 L (N = 959, SD = 176), and 759 L (N = 448, SD = 439), respectively, while the average lactation length was 256 days (N = 960, SD = 122). All factors included (breed group, season and year of calving, and parity) were significant for yield traits, except season of calving for MY305. First-parity cows had the lowest milk production, and fourth-parity cows the highest. For all traits, pure Ankole cows had the lowest milk yield. Among the crossbreds, there was no significant difference between Ankole x Friesian, Ankole-Jersey mother x Sahiwal sire, and Ankole-Sahiwal mother x Jersey sire, or between Ankole x Sahiwal and Ankole-Sahiwal mother x Sahiwal sire. It was concluded that Ankole crosses with Friesian or Jersey can be beneficial, even under a management system of limited nutrition as in Rwanda.

Keywords

Breed groups; Crossbreeding; Milk yield

Published in

Tropical Animal Health and Production
2020, volume: 52, number: 6, pages: 2937-2943
Publisher: SPRINGER

Authors' information

Maximillian, Manzi
Swedish University of Agricultural Sciences, Department of Animal Breeding and Genetics
Maximillian, Manzi
Rwanda Agriculture Board
Maximillian, Manzi
University of Rwanda
Swedish University of Agricultural Sciences, Department of Animal Breeding and Genetics
Ntawubizi, Martin
University of Rwanda
D’Andre Hirwa, Claire
Rwanda Agriculture Board
Karege, Callixte
University of Rwanda
Swedish University of Agricultural Sciences, Department of Animal Breeding and Genetics

UKÄ Subject classification

Animal and Dairy Science

Publication Identifiers

DOI: https://doi.org/10.1007/s11250-020-02311-9

URI (permanent link to this page)

https://res.slu.se/id/publ/106713