Animal Science · 1964 · 17 citations · 3 references
AgricultureAnimal SciencesDairy ScienceLactationLivestock ProductionRuminant NutritionAnimal GeneticsBackcross BreedingCrossbreeding SystemsDairy ProductionMilk ProductionBackcross EfficiencyBackcross GenerationsCrossbreeding ComparisonCrossbreeding SchemesHybrid Effects On YieldMilk Production Genetics
A study has been made of the performance of crosses and backcrosses of Bos taurus and Bos indicus cattle using records covering a period of 15 years from the Experimental Station, Tanga. The gene combinations found in ½-bred animals were the most productive in this environment, and ¼-bred Bos taurus animals gave higher average daily yields of milk between calvings than those with ¾ taurus blood.
3
The causes of differences in production between dairy herds
P. J. Brumby · Animal Science · 1961 · 29 citations
A genetic study of the Sahiwal grading-up scheme in Kenya
P. Mahadevan, Esau Galukande, Jack Black · Animal Science · 1962 · 21 citations