Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comparative Study
. 2018 Oct;50(7):1479-1484.
doi: 10.1007/s11250-018-1584-9. Epub 2018 Mar 28.

Comparative performance of dairy cows in low-input smallholder and high-input production systems in South Africa

Affiliations
Comparative Study

Comparative performance of dairy cows in low-input smallholder and high-input production systems in South Africa

S Abin et al. Trop Anim Health Prod. 2018 Oct.

Abstract

The aim of this study was to benchmark the performance of dairy cows in the low-input smallholder system against their counterparts in the high-input system, in South Africa. Data comprised of cow performance records from the national dairy recording scheme. Performance measures included production (305-day yields of milk, fat, and protein), lactation length, somatic cell count (SCC), and reproductive traits, represented by age at first calving (AFC) and calving interval (CI). Least squares means of each trait were compared between the two systems, and lactation curves for production traits and SCC were plotted for each production system. Mean yields of milk, fat, and protein were significantly (P < 0.05) lower in the smallholder (4097 ± 165, 174 ± 5.1, and 141 ± 4.5 respectively) compared to the high-input system (6921 ± 141, 298 ± 4.7, and 245 ± 4.1 respectively). Mean lactation length was significantly (P < 0.05) shorter for the smallholder (308 ± 15.1) than the high-input system (346 ± 12.8). Log-transformed somatic cell count (SCS) was, however, significantly (P < 0.05) higher in the smallholder (2.41 ± 0.01) relative to the high-input system (2.27 ± 0.01). Cows in high-input herds showed typical lactation curves, in contrast to the flat and low peaking curves obtained for the smallholder system. Cows on smallholder herds had their first calving significantly (P < 0.05) older (30 ± 0.5) than those in the high-input system (27 ± 0.5). There was, however, no significant difference (P < 0.05) in CI between the two systems. These results highlight large room for improvement of dairy cow performance in the smallholder system and could assist in decision-making aimed at improving the productivity of the South African dairy industry.

Keywords: Lactation curve; Production; Reproduction; Somatic cell count.

PubMed Disclaimer

References

    1. Asian-Australas J Anim Sci. 2013 Nov;26(11):1511-7 - PubMed
    1. Animal. 2009 Jun;3(6):891-905 - PubMed
    1. J Dairy Sci. 2010 Mar;93(3):1116-25 - PubMed
    1. J Dairy Sci. 2006 Sep;89(9):3609-14 - PubMed
    1. J Anim Physiol Anim Nutr (Berl). 2015 Feb;99(1):174-189 - PubMed

Publication types

LinkOut - more resources