Effect of Region and Herd Size on Dairy Herd Performance Parameters

TMR Particle Size Distribution and Dairy Herd Performance

Herd immunity and the herd severity effect.

868 www.thelancet.com/infection Vol 15 August 2015 6 DuPont HL. Approach to the patient with infectious colitis. Curr Opin Gastroenterol 2012; 28: 39–46. 7 Gu B, Cao Y, Pan S, et al. Comparison of the prevalence and changing resistance to nalidixic acid and ciprofl oxacin of Shigella between Europe-America and Asia-Africa from 1998 to 2009. Int J Antimicrob Agents 2012; 40: 9–17. 8 Baker KS, Da...

Associations between nondietary factors and dairy herd performance.

Forty-seven dairy herds (approximately 3,129 lactating cows) from northeast of Spain that were offering exactly the same lactating ration were surveyed to determine the effect of nondietary factors on herd performance. The survey collected information on the profile of the owners (their future intentions, the number of workers, and time devoted to the enterprise), information regarding the anim...

The effect of calf nutrition on the performance of dairy herd replacements.

Sixty-five Holstein-Friesian calves were randomly allocated to one of eight nutritional treatments at 4 days of age. In this factorial design study, the treatments comprised of four levels of milk replacer (MR) mixed in 6 l of water (500, 750, 1000 and 1250 g/day) × two crude protein (CP) concentrations (230 and 270 g CP/kg dry matter (DM)). MR was fed via automatic teat feeders and concentrate...

Housing system and herd size interactions in Norwegian dairy herds; associations with performance and disease incidence

BACKGROUND According to the Norwegian animal welfare regulations, it has been forbidden to build new tie-stall barns since the end of 2004. Previous studies have shown that cow performance and health differ between housing systems. The interaction between housing system and herd size with respect to performance and disease incidence has not been evaluated. METHODS Cow performance and health i...