EVOLUTION
OF MILK PRODUCTION SYSTEMS IN TROPICAL
F.
Holmann, L. Rivas,
J. Carulla, L. Giraldo,
S. Guzman, M. Martinez, B. Rivera, A. Medina, and A. Farrow.
1 Funded by the Systemwide Livestock Program
(SLP) convened by ILRI.
ABSTRACT
Objectives
were: (1) to quantify the effect of technological change on productivity,
profitability, and competitiveness in milk production systems and regions in
The
livestock sector in tropical Latin America (LAC) has been one of the main
economic activities within the agricultural sector due to a great extent to
abundant areas under savannas appropriate for livestock production. Despite its
vast forage resources, livestock production in tropical LAC faces acute
problems due to low productivity levels and market changes. In addition, internal discussion exists on
the viability of these production systems to compete in a free trade economic
environment, especially now that negotiations are under way to join the North
American Free Trade Agreement (NAFTA). The aim of this
document was to study the evolution of milk producing systems taking
Data
came from a survey to 545 farms in five ecosystems during 2000 to calculate
variable costs, income, and to characterize farms by productivity and
management practices using multiple correspondence and general linear
models. Costs and incomes were estimated
based on the methodology described in Holmann et al.,
(1990). Competitiveness was defined as the permanence capacity in the dairy
activity and was measured through the unitary cost of milk and/or beef
production. Thus, the lower the production cost, the more competitive the farm
is. Profitability was defined as annual net income divided by the number of
adult cows. Technological change was measured through the concept of
productivity, expressed as production of milk and beef per cow and per hectare
per year. Twelve technologies and/or
management practices were evaluated to quantify their impact on productivity,
profitability, and competitiveness, which were: (1) proportion of improved
pastures established on the farm; (2) number of grazing paddocks used by
milking cows; (3) amount of feed supplements offered to milking cows; (4)
reproductive system used; (5) breed group used; (6) number of milkings per day; (7) use of fertilization; (8) use of the irrigation; (9) proportion of
mature herd in milk; (10) years of experience producing milk; (11) herd
size; and (12) de-worming frequency against both external and internal
parasites. Data was analyzed by
production system (i.e., specialized dairy vs. dual-purpose) and by region
(i.e., two sites in lowland areas:
Effect of technological change. Depending on the region where farms were
located, farmers that adopted more than two thirds of the area allocated to
livestock under improved grasses produced 126% to 309% more milk/ha, had 31% to
350% higher net income/cow/yr, and produced milk at 8% to 13% lower cost than
farms with a low proportion of improved forages (i.e., less than one third of
livestock area). Farms that had more
than 20 grazing paddocks for a more efficient rotation of the milking herd
produced 12 to 140% more milk/ha, generated 54% to 133% higher net
income/cow/yr, and produced milk at 19% to 27% lower cost compared to farms
that had less than 10 grazing paddocks. The use of strategic feed
supplementation to the basal diet of forage had mixed effects. The best
economic response to this supplementation in lowland regions was with low
quantities (i.e., < 0.5 kg DM/cow/day) of feed supplements while in highland
regions was with moderate quantities (i.e., between 0.5 and 2 kg
DM/cow/day). The use of fertilization
and irrigation increased productivity, but reduced net income and increased
production costs in all regions and production systems, except in the Cundiboyacense altiplanicie,
which suggested the need to allocate research resources to determine the best
economic response to various levels of N2 and H2O to
different improved grasses under various soil types and conditions. Farms that practiced twice a day milking produced 83% to 520% more milk/ha, generated
25% to 148% higher net income/cow/yr, and produced milk at 15% to 27% lower
costs compared to farms that milked once per day. Farms that de-wormed the milking herd with
low frequency (i.e., less than twice/yr) for internal parasites obtained 77% to
128% higher incomes and 8% to 35% lower production costs in comparison with
farms that de-wormed with higher frequency (i.e., more than 3 times/yr)
although there were not differences in productivity. The amount of years of
experience from farmers at producing milk was a key factor to increase profits
(38% to 120%), although not productivity.
The most competitive and profitable breed group in the dual-purpose
system was the crossbred with low (i.e. 24% European - 76% Zebu genes) and
medium levels of dairy genes (55% European - 45% Zebu genes) but had lower
productivity than the purebred group (i.e. 98% European genes). In the specialized dairy system, the purebred
group was slightly more profitable, productive and competitive than the
crossbred group with medium level of dairy genes, but this difference was not
significant. Independent of production
system or region where farms were located, the increase in competitiveness was
in direct relationship with herd size. Thus, as herd size increased, production
costs per unit of milk and beef decreased and net incomes per cow increased.
However, when this increase in competitiveness with associated with increases
in productivity, this trend was not observed, which suggested that highly
productive farms were not necessarily profitable. The dual-purpose system was the most
profitable one in the
Evolution of milk production systems.
The Colombian dairy sector has become more productive and competitive, but
less profitable. Comparing the evolution of dairy farms with studies 12 years
ago (Aldana, 1990), milk production per hectare has increased by 44% in
dual-purpose herds and by 14% in specialized dairies. This increase in
productivity reduced the milk production cost
by 16% and 10% in dual-purpose and specialized dairies,
respectively, due to an increase in
stocking rate by 15% and 17% in dual-purpose and specialized dairies as well as
to an increase in investment in infrastructure and equipment by 258% and 37% in
dual-purpose and specialized dairies, respectively. However, net income per hectare during this
period decreased by 27% and 69% in dual-purpose and specialized dairies due to a reduction in the producer’s price of
milk and beef of 22% and 20% in dual-purpose systems, and of 41% and 27% in
specialized dairies. Nevertheless, this
reduction in price to the producer was never translated in lower prices to
consumers, but remained in the hands of supermarkets and milk plants which
expanded and modernized with long-life technology. Figure 1 shows the percentage of the
price paid for one liter of milk by the consumer that is retained by producers.
As observed, producers retained in 1989 about 70% of the
final price. However, during the 90's this percentage was systematically
reduced to only 37% in 2001. This
occurred because the adjustments in the price of milk to producers were always
below inflation while the adjustments of milk price to consumers usually
surpassed the level of inflation (Figure 2).
Development agencies must internalize the
fact that policies oriented to markets
will be increasingly "oriented to supermarkets". If one adds that in
The Challenge. The
information presented in this case study illustrates the problems and
opportunities of the dairy sector in
HOLMANN, F., R.
W. BLAKE, M. V. HAHN, R. BARKER, R. A. MILLIGAN, P. A. OLTENACU, and T. L.
STANTON. 1990. Comparative Profitability of Purebred and
Crossbred
HOLMANN, F., L. RIVAS, J. CARULLA, L. GIRALDO, S. GUZMAN,
M.
ALDANA, C. 1990. Productividad y rentabilidad en sistemas de producción de leche en
Figure 1.
Proportion of the milk price paid by consumers that is
retained by producers in

Figure 2.
Inflation rate and adjustments in the price of milk paid by consumers
and received by producers
in
