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

Maximillian, Manzi and Rydhmer, Lotta and Ntawubizi, Martin and D’Andre Hirwa, Claire and Karege, Callixte and Strandberg, Erling (2020). Milk production and lactation length in Ankole cattle and Ankole crossbreds in Rwanda. Tropical Animal Health and Production. 52 , 2937-2943
[Research article]

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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.

Authors/Creators:Maximillian, Manzi and Rydhmer, Lotta and Ntawubizi, Martin and D’Andre Hirwa, Claire and Karege, Callixte and Strandberg, Erling
Title:Milk production and lactation length in Ankole cattle and Ankole crossbreds in Rwanda
Series Name/Journal:Tropical Animal Health and Production
Year of publishing :2020
Volume:52
Page range:2937-2943
Number of Pages:7
Publisher:SPRINGER
ISSN:0049-4747
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 402 Animal and Dairy Science > Animal and Dairy Science.
Keywords:Breed groups, Crossbreeding, Milk yield
URN:NBN:urn:nbn:se:slu:epsilon-p-106713
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-106713
Additional ID:
Type of IDID
DOI10.1007/s11250-020-02311-9
Web of Science (WoS)000538987400001
ID Code:18722
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Animal Breeding and Genetics
Deposited By: SLUpub Connector
Deposited On:24 Nov 2020 13:03
Metadata Last Modified:15 Jan 2021 19:26

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