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The Effects Of Different Feed Supplements On Performance Parameters, Egg Measurements, And Eggshell Integrity In Older White Leghorn Laying Hens, Josephine Foley
The Effects Of Different Feed Supplements On Performance Parameters, Egg Measurements, And Eggshell Integrity In Older White Leghorn Laying Hens, Josephine Foley
Department of Animal Science: Dissertations, Theses, and Student Research
Two studies were conducted to evaluate the efficacy of multiple feed additives on the performance of older White Leghorn hens. Study 1 examined the effects of 2 vitamin/mineral supplements and 1 medium chain fatty acid. Study 2 examined the effects of a novel butyric acid product, a tributyrin ester. Both studies followed a completely randomized design with repeated measures and data were analyzed using the Glimmix procedure in SAS version 9.4 for Windows.
The first study took place November 2015 to April 2016. Trt 1 was a control diet, Trt 2 was supplemented with a Ca, Fe, Mn, Cu, Zn …