J.J. Callan - Publications, H-index & Citations

A comparison between Holstein-Friesian and Jersey dairy cows and their F1 hybrid on milk fatty acid composition under grazing conditions

IF3.5

2010-07-26

PREAI

Varley, Patrick F.; McCarney, Catherine; Callan, James J.; O'Doherty, John V.

Effects of phytase and 25-hydroxyvitamin D3 inclusions on the performance, mineral balance and bone parameters of grower-finisher pigs fed low-phosphorus diets

IF4.4

2010-05-01

OAAI

Palladino, R. A.; Buckley, F.; Prendiville, R.; Murphy, J. J.; Callan, J.; Kenny, D. A.

The effect of dietary Laminaria-derived laminarin and fucoidan on nutrient digestibility, nitrogen utilisation, intestinal microflora and volatile fatty acid concentration in pigs

IF4.2

2010-01-01

OAAI

O'Doherty, J. V.; Gahan, D. A.; O'Shea, C.; Callan, J. J.; Pierce, K. M.

Fatty acid intake and milk fatty acid composition of Holstein dairy cows under different grazing strategies: Herbage mass and daily herbage allowance

IF3.5

2009-12-16

130

PREAI

Lynch, Mary B.; Sweeney, Torres; Callan, James J.; O'Sullivan, John T.; O'Doherty, John V.

Effect of DL-malic acid supplementation on feed intake, methane emissions, and performance of lactating dairy cows at pasture

IF4.4

2009-10-01

OAAI

Palladino, R. A.; O'Donovan, M.; Murphy, J. J.; McEvoy, M.; Callan, J.; Boland, T. M.; Kenny, D. A.

Ammonia emissions and dry matter of separated pig manure fractions as affected by crude protein concentration and sugar beet pulp inclusion of finishing pig diets

IF4.4

2009-07-01

OAAI

Foley, P. A.; Kenny, D. A.; Lovett, D. K.; Callan, J. J.; Boland, T. M.; O'Mara, F. P.

AGRICULTURE ECOSYSTEMS & ENVIRONMENT

IF6.4

2009-06-01

PREAI

O'Shea, C. J.; Lynch, B.; Lynch, M. B.; Callan, J. J.; O'Doherty, J. V.

Performance of weanling piglets offered low-, medium- or high-lactose diets supplemented with a seaweed extract from Laminaria spp.

The effects of seaweed extract inclusion on gut morphology, selected intestinal microbiota, nutrient digestibility, volatile fatty acid concentrations and the immune status of the weaned pig 海藻提取物对断奶仔猪肠道形态、肠道微生物群、营养物质消化率、挥发性脂肪酸浓度和免疫状态的影响

IF4.2

2009-01-01

OAAI

Gahan, D. A.; Lynch, M. B.; Callan, J. J.; O'Sullivan, J. T.; O'Doherty, J. V.

Effect of crude protein concentration and sugar-beet pulp on nutrient digestibility, nitrogen excretion, intestinal fermentation and manure ammonia and odour emissions from finisher pigs

IF4.2

2008-01-01

122

OAAI

Reilly, P.; O'Doherty, J. V.; Pierce, K. M.; Callan, J. J.; O'Sullivan, J. T.; Sweeney, T.

The effects of cobalt and iodine supplementation of the pregnant ewe diet on immunoglobulin G, vitamin E, T3 and T4 levels in the progeny

IF4.2

2008-01-01

OAAI

Lynch, M. B.; O'Shea, C. J.; Sweeney, T.; Callan, J. J.; O'Doherty, J. V.

The influence of manure composition on emissions of odour and ammonia from finishing pigs fed different concentrations of dietary crude protein

IF4.2

2008-01-01

OAAI

Bolan, T. M.; Hayes, L.; Sweeney, T.; Callan, J. J.; Baird, A. W.; Keely, S.; Crosby, T. F.

BIORESOURCE TECHNOLOGY

IF9

2007-12-01

PREAI

Leek, Aidan B. G.; Hayes, Enda T.; Curran, Thomas P.; Callan, James J.; Beattie, V. E.; Dodd, Vincent A.; O'Doherty, John V.

Effects of increasing the intake of dietary β-glucans by exchanging wheat for barley on nutrient digestibility, nitrogen excretion, intestinal microflora, volatile fatty acid concentration and manure ammonia emissions in finishing pigs

The interaction between threonine and avilamycin on piglet performance and diet digestibility post weaning

IF4.2

2007-01-01

OAAI

Lynch, M. B.; Sweeney, I.; Callan, I. J.; O'Doherty, I. V.

Manipulating enteric methane emissions and animal performance of late-lactation dairy cows through concentrate supplementation at pasture 通过在牧场上补充浓缩物来控制肠道甲烷排放和泌乳后期奶牛的动物性能

IF3.5

2005-11-10

PREAI

O'Connell, MJ; Callan, JJ; O'Doherty, JV

Supplementary concentrate type affects nitrogen excretion of grazing dairy cows

IF4.4

2005-08-01

OAAI

Lovett, DK; Stack, LJ; Lovell, S; Callan, J; Flynn, B; Hawkins, M; O'Mara, FP

Effect of phytase inclusion and calcium/phosphorus ratio on the performance and nutrient retention of grower-finisher pigs fed barley/wheat/soya bean meal-based diets

IF4.4

2004-10-01

OAAI

Mulligan, FJ; Dillon, P; Callan, JJ; Rath, M; O'Mara, FP