Economic and Biological Values for Pasture-Based Dairy Cattle Porduction Systems and their Application in Genetic Improvement in the Tropics

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Economic and Biological Values for Pasture-Based Dairy Cattle Porduction Systems and their Application in Genetic Improvement in the Tropics. / Wahinya, P K; Otieno, Tobias Okeno; Kosgey, I S; Kahi, A K.

I: Journal of Animal Production Advances, Bind 5, Nr. 5, 2015, s. 664-675.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskning

Harvard

Wahinya, PK, Otieno, TO, Kosgey, IS & Kahi, AK 2015, 'Economic and Biological Values for Pasture-Based Dairy Cattle Porduction Systems and their Application in Genetic Improvement in the Tropics', Journal of Animal Production Advances, bind 5, nr. 5, s. 664-675. https://doi.org/10.5455/japa.20150517032130

APA

Wahinya, P. K., Otieno, T. O., Kosgey, I. S., & Kahi, A. K. (2015). Economic and Biological Values for Pasture-Based Dairy Cattle Porduction Systems and their Application in Genetic Improvement in the Tropics. Journal of Animal Production Advances, 5(5), 664-675. https://doi.org/10.5455/japa.20150517032130

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MLA

Vancouver

Author

Wahinya, P K ; Otieno, Tobias Okeno ; Kosgey, I S ; Kahi, A K. / Economic and Biological Values for Pasture-Based Dairy Cattle Porduction Systems and their Application in Genetic Improvement in the Tropics. I: Journal of Animal Production Advances. 2015 ; Bind 5, Nr. 5. s. 664-675.

Bibtex

@article{39e86ad25b164a14af802841b81b514e,
title = "Economic and Biological Values for Pasture-Based Dairy Cattle Porduction Systems and their Application in Genetic Improvement in the Tropics",
abstract = "Economic and biological values for milk yield (MY), milk butter fat (FY), daily gain (DG), weaning weight (WWT), mature live weight (MLW), calving interval (CI), pre-weaning survival rate (PreSR), post-weaning survival rate (PostSR), age at first calving (AFC), and productive life time (PLT) were estimated under fixedherd (FH) and pasture (FP) production circumstances assuming milk marketing based on volume, and volume and butter fat. Further, economic values were estimated involving risk using the Arrow Pratt coefficients at two levels. For the former economic values for the traits ranged from KSh. -17.246 to 100.536 while the biological values ranged between -1.29 to 0.791. Economic values with higher Arrow-Prat coefficient of absolute risk aversion (λ=0.02) were lower than those reported under λ=0.0001 indicating that the uncertainty of the future market is important and should be considered during the estimation of economic values. Genetic improvements targeting MY and growth traits would be recommended to production system with unlimited feed supply for profit maximization. However, since dairy production systems in the tropics are characterised by feed scarcity, fixing the herd and concentrating on genetically improved animals would result to more profitability than increasing animal populations",
author = "Wahinya, {P K} and Otieno, {Tobias Okeno} and Kosgey, {I S} and Kahi, {A K}",
year = "2015",
doi = "10.5455/japa.20150517032130",
language = "English",
volume = "5",
pages = "664--675",
journal = "Journal of Animal Production Advances",
issn = "2251-7677",
publisher = "Global Researchers Journals",
number = "5",

}

RIS

TY - JOUR

T1 - Economic and Biological Values for Pasture-Based Dairy Cattle Porduction Systems and their Application in Genetic Improvement in the Tropics

AU - Wahinya, P K

AU - Otieno, Tobias Okeno

AU - Kosgey, I S

AU - Kahi, A K

PY - 2015

Y1 - 2015

N2 - Economic and biological values for milk yield (MY), milk butter fat (FY), daily gain (DG), weaning weight (WWT), mature live weight (MLW), calving interval (CI), pre-weaning survival rate (PreSR), post-weaning survival rate (PostSR), age at first calving (AFC), and productive life time (PLT) were estimated under fixedherd (FH) and pasture (FP) production circumstances assuming milk marketing based on volume, and volume and butter fat. Further, economic values were estimated involving risk using the Arrow Pratt coefficients at two levels. For the former economic values for the traits ranged from KSh. -17.246 to 100.536 while the biological values ranged between -1.29 to 0.791. Economic values with higher Arrow-Prat coefficient of absolute risk aversion (λ=0.02) were lower than those reported under λ=0.0001 indicating that the uncertainty of the future market is important and should be considered during the estimation of economic values. Genetic improvements targeting MY and growth traits would be recommended to production system with unlimited feed supply for profit maximization. However, since dairy production systems in the tropics are characterised by feed scarcity, fixing the herd and concentrating on genetically improved animals would result to more profitability than increasing animal populations

AB - Economic and biological values for milk yield (MY), milk butter fat (FY), daily gain (DG), weaning weight (WWT), mature live weight (MLW), calving interval (CI), pre-weaning survival rate (PreSR), post-weaning survival rate (PostSR), age at first calving (AFC), and productive life time (PLT) were estimated under fixedherd (FH) and pasture (FP) production circumstances assuming milk marketing based on volume, and volume and butter fat. Further, economic values were estimated involving risk using the Arrow Pratt coefficients at two levels. For the former economic values for the traits ranged from KSh. -17.246 to 100.536 while the biological values ranged between -1.29 to 0.791. Economic values with higher Arrow-Prat coefficient of absolute risk aversion (λ=0.02) were lower than those reported under λ=0.0001 indicating that the uncertainty of the future market is important and should be considered during the estimation of economic values. Genetic improvements targeting MY and growth traits would be recommended to production system with unlimited feed supply for profit maximization. However, since dairy production systems in the tropics are characterised by feed scarcity, fixing the herd and concentrating on genetically improved animals would result to more profitability than increasing animal populations

U2 - 10.5455/japa.20150517032130

DO - 10.5455/japa.20150517032130

M3 - Journal article

VL - 5

SP - 664

EP - 675

JO - Journal of Animal Production Advances

JF - Journal of Animal Production Advances

SN - 2251-7677

IS - 5

ER -