Forage inclusion in calf starter has the best outcome when it is supplemented since 21 days after birth in Holstein calves.
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DOI: 10.1007/s11250-021-02635-0
Abstract: To evaluate the optimum age of straw addition to starter diet on growth of calves, 40 Holstein calves (36.7 ± 4.96 kg) were assigned at 3 days of age to 1 of 4 treatments in… read more here.
Keywords: inclusion; holstein calves; age; day age ... See more keywords
Infectious Bronchitis Virus Vaccination at Day 1 of Age Further Limits Cross Protection
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DOI: 10.1637/12009-120518-reg.1
Abstract: SUMMARY. Cross-protection and immune responses elicited by infectious bronchitis virus (IBV) vaccination on Day 1 of age or at later time points were examined. Specific-pathogen-free chickens were vaccinated with a Massachusetts-type vaccine and heterologous challenge… read more here.
Keywords: day age; vaccination; cross protection; day ... See more keywords