Poster prepared by Lotta Lassila, Karen Marshall, Patrick Jolly Ngono Ema, Isabelle Baltenweck, Jane Poole, Stanly Fon Tebug, Miika Tapio, Ayao Missohou and Jarmo Juga, June 2014.

1. MILK YIELD OF DAIRY
CATTLE IN SENEGAL
www.mtt.fi/foodafrica
SENEGAL DAIRY GENETICS:
Based on farmer-given breed-types
following common groups were
observed:
Daily milk yield differs between indigenous Zebu breeds and Zebu-
taurine crosses. With information on lactation records for different
breed-types Senegalese small-holder farms will be able to better select
the best animals for their needs.
indigenous breeds
Zebu Gobra and
Zebu Maure
crosses between
Zebu Gobra (50%)
and purebred
taurine (50%)
crosses between
Zebu Gobra (75%)
and
Guzerat (25%)
GROUP A GROUP B GROUP C
On a test day the milk yield was
measured on both morning and
evening milking. If either one of the test
day samples was not recorded the
daily milk yield was estimated.
A model was used to predict lactation
curve from daily milk yield.
This poster is part of the FoodAfrica Programme, financed as a research collaboration between the MFA of Finland,
MTT Agrifood Research Finland, IFPRI, ILRI, ICRAF, Bioversity International, University of Helsinki and HAMK University of Applied Sciences
1
2
3
Milk measurements from first four rounds of longitudinal monitoring were used to estimate the
daily milk yield and predicting lactation curve for indigenous and crossbred dairy cattle.
the milk consumed by a calf was excluded
1 daily milk yield with recorded AM/PM milking and estimates for missing records
2 daily milk yield with both AM/PM recorded
3 if both AM/PM recorded, AM yield was used for estimate
Daily milk
yield 1
Daily milk yield
record for AM/PM
milkings 2
Estimated daily
milk yield 3
Mean
N
Std. Deviation
Mean
N
Std. Deviation
Mean
N
Std. Deviation
GROUP A GROUP B GROUP C
2.1
614
1.92
2.2
339
2.12
2.2
614
1.89
2.4
125
2.44
2.6
84
2.75
2.4
125
2.41
3.3
255
2.27
3.5
185
2.39
3.3
255
2.17
Lotta Lassila, Karen Marshall, Patrick Jolly Ngono Ema, Isabelle Baltenweck, Jane Poole, Stanly Fon Tebug, Miika Tapio, Ayao Missohou, Jarmo Juga.
milk(l)
Stage of lactation (days in milk / 30 + 1)
Predicted lactation
curve for group A
Average daily milk
yield for group A
4
3
2
1
0
1 2 3 4 5 6 7 8 9 10 11 12 13