Senegal dairy genetics: Milk yield of dairy cattle in Senegal
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
Transcript of Senegal dairy genetics: Milk yield of dairy cattle in Senegal
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
12
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 excluded1 daily milk yield with recorded AM/PM milking and estimates for missing records2 daily milk yield with both AM/PM recorded3 if both AM/PM recorded, AM yield was used for estimate
Daily milk yield 1
Daily milk yieldrecord for AM/PM milkings 2
Estimated daily milk yield 3
MeanNStd. Deviation
MeanNStd. Deviation
MeanNStd. Deviation
GROUP A GROUP B GROUP C2.16141.92
2.23392.12
2.26141.89
2.41252.44
2.684
2.75
2.41252.41
3.32552.27
3.51852.39
3.32552.17
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
01 2 3 4 5 6 7 8 9 10 11 12 13
