Dairy Production in developing countries
R.E. McDowell
Department of Animal Science, North Carolina State University,
Raleigh, NC. 27603, USA
Proceedings of the New Zealand Society of Animal Production.
1992, 52: 3-6
Lack of breeds suitable for commercial dairying is a constraint
in Developing Countries (LDCs); however there is some progress. All
Latin American Countries have nucleus herds of Holstein or Friesian,
compared to 71% of Asian and 52% of African countries. The potential
for more exports of animals to LDCs is high, but success will depend on
support from exporters in their management. Holsteins born in LCDs will
have a body weight at maturity about 125 kg (500-550 kg) lower than
expected, lactation milk yield will be 30-50% lower, calving intervals
10-15% longer, age at first calving 25% later and duration of herd life
.5 to 1.2 parturitions less. This breed needs feeding at least the
equivalent of 2.2 multiples of maintenance in TDN. At this level milk
yield will average near 6000 kg, calving interval 410-420 d, age at
first calving 29-31 mo, fertility will be 1.8 services per conception
and herd life 2.6-3.0 parturitions. This should still result in
acceptable levels in both biological and economic efficiency.
Imbalances in feeding, foot problems, seasonal breeding and milking
sanitation appear among the most pressing problems.
Keywords: NZSAPAB;
Dairy development; tropical; Friesian; milk yield; feeding; foot
problems; milk sanitation
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Last Updated 25-01-1997