— Editorial — Guidelines for experimental design and statistical analyses in animal studies submitted for publication in the Asian-Australasian Journal of Animal Sciences

Seo, Seongwon; Jeon, Seoyoung; Ha, Jong K.

doi:10.5713/ajas.18.0468

Cited by 47 publications

(34 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Inc., Cary, NC, USA). The model included dietary treatment as a fixed variable and animal and period as random variables [12]. Least squares means of each treatment were calculated and the difference among the least squares means was tested using the PDIFF option of SAS with the Tukey’s adjustment.…”

Section: Methodsmentioning

confidence: 99%

Amino acid digestibility in plant protein sources fed to growing pigs

Son

Park

et al. 2019

Asian-Australas J Anim Sci

View full text Add to dashboard Cite

ObjectiveThe objective was to determine standardized ileal digestibility (SID) of amino acids (AA) in 11 plant protein sources fed to growing pigs.MethodsEleven feed ingredients used were sesame meal, two sources of soybean meal (SBM) produced in the Republic of Korea, a source of SBM produced in India, high-protein distillers dried grains (HPDDG), perilla meal, canola meal, copra meal, corn germ meal, palm kernel expeller, and tapioca distillers dried grains (TDDG). Experimental diets were prepared to contain each test ingredient as a sole source of AA, and a nitrogen-free diet was also prepared to estimate the basal ileal endogenous losses of AA. Twelve barrows surgically fitted with T-cannulas at the distal ileum with an initial body weight of 29.0 kg (standard deviation = 3.0) were individually housed in metabolism crates equipped with a feeder and a nipple drinker. A 12×9 incomplete Latin square design was employed with 12 experimental diets, 12 animals, and 9 periods. After a 5-d adaptation period, ileal digesta were collected on d 6 and 7 in each experimental period.ResultsValues for apparent ileal digestibility of most indispensable AA in three sources of SBM were greater compared with other test ingredients except HPDDG and canola meal (p<0.05). Pigs fed diets containing SBM sources had also greater SID of most indispensable AA compared with those fed diets containing other test ingredients (p<0.05) except for HPDDG and canola meal. There was no difference in the apparent ileal digestibility and SID of AA among sources of SBM. The TDDG had the least value for the SID of methionine among test ingredients (p<0.05).ConclusionThe SID of most AA in SBM, HPDDG, and canola meal were greater than those in sesame meal, perilla meal, copra meal, and TDDG.

show abstract

Section: Methodsmentioning

confidence: 99%

Amino acid digestibility in plant protein sources fed to growing pigs

Son

Park

et al. 2019

Asian-Australas J Anim Sci

View full text Add to dashboard Cite

show abstract

“…In the energy digestibility experiment, dietary treatments were considered as a fixed variable, while replication, animal within replication, and period within replication were considered as random variables. The least square means were calculated for each treatment, and differences between least squares means were tested using the PDIFF option with Tukey's adjustment [12]. The experimental unit was a pig, and an alpha level of 0.05 was used to determine statistical significance.…”

Section: Calculations and Statistical Analysesmentioning

confidence: 99%

Effects of a Hatchery Byproduct Mixture on Growth Performance and Digestible Energy of Various Hatchery Byproduct Mixtures in Nursery Pigs

Sung

Kim

2020

Animals

View full text Add to dashboard Cite

The objectives were to determine effects of a hatchery byproduct mixture (HBM) on growth performance and to measure digestible energy concentrations in various HBM. In the growth performance experiment, 96 pigs (initial body weight = 9.6 ± 0.8 kg) were assigned to 4 dietary treatments in a randomized complete block design with 6 blocks. Each treatment consisted of 6 replicate pens with 4 pigs comprising 2 barrows and 2 gilts. Pigs were fed graded concentrations of HBM at 0%, 3.33%, 6.67%, and 10.00% for 14 days. In the energy digestibility experiment, 10 barrows (initial body weight = 11.5 ± 0.4 kg) were employed to determine digestible energy in HBM. A basal diet based on corn and soybean meal and 4 additional diets containing 25% of 4 different HBM were prepared. The marker-to-marker method was employed for total collection and the experimental design was a replicated 5 × 4 Latins square design. Growth performance was not compromised as the inclusion rate of HBM increased up to 10%. Digestible energy of HBM ranged from 2772 to 3887 kcal/kg as-is basis. In conclusion, HBM can be used in nursery pig diets and different energy values should be used for each HBM.

show abstract

“…The LSMEANS procedure was used to calculate treatment means. The orthogonal polynomial contrast test was performed to determine linear and quadratic effects of increasing inclusion levels of β-mannanase in diets on each measurement (Seo et al, 2018). Significance and tendency for statistical tests were set at p<0.05 and 0.05≤p≤0.10, respectively.…”

Section: Discussionmentioning

confidence: 99%

Dietary β-mannanase decreases cloacal temperature of broiler chickens under hot conditions without affecting growth performance

Yang

Kim

Pitargue

et al. 2018

Rev Colom Cienc Pecua

View full text Add to dashboard Cite

El consumo de β-mananasa disminuye la temperatura cloacal de pollos de engorde bajo condiciones de calor sin afectar su rendimiento de crecimiento O consumo de β-mananase diminui a temperatura da cloaca do frango de corte em condições de calor sem afetar seu desempenho do crescimentoAbstract Background: High amounts of nonstarch polysaccharides in the diet may increase the amounts of fermentative materials in the hindgut, leading to an increase in fermentative heat production. Dietary β-mannanase is reported to decrease antinutritional effects of β-mannans, such as the potential increase of body heat; however, its efficacy on broiler chickens raised under hot climatic conditions has not been investigated. Objective: To investigate the effects of dietary β-mannanase on growth performance, cloacal temperature, relative lymphoid organ weight, and blood characteristics of broiler chickens raised under hot climatic conditions. Methods: A total of 1,701 1-day-old Ross 308 broiler chickens were randomly allotted to one of three dietary treatments with nine replicates. A basal diet was prepared and added with β-mannanase at 0.05 or 0.10% inclusion levels. The experiment was conducted for 30 days. Average room temperature was 28.8 ± 1.74 ˚C and average relative humidity (RH) was 76.1 ± 11.49% during the experiment. Results: Growth performance of broiler chickens raised under hot climatic conditions was not affected by β-mannanase inclusion. Cloacal temperature decreased at the end of experiment (linear, p<0.05) with increasing inclusion levels of dietary β-mannanase. Increasing inclusion levels of β-mannanase tended to increase (linear, p=0.076) the relative weight of thymus, but had no effects on the relative weight of spleen and bursa of Fabricius. Blood characteristics were not influenced by dietary β-mannanase. Conclusion: Increasing inclusion levels of β-mannanase decrease cloacal temperature; however, it does not directly influence growth performance nor alleviates the heat stress of broiler chickens raised under hot climatic conditions. ResumenAntecedentes: Altas cantidades de carbohidratos no almidonosos en la dieta pueden aumentar la cantidad de materiales fermentativos en el intestino posterior, aumentando la producción de calor fermentativo. La β-mananasa dietaria disminuye los efectos antinutricionales de los β-mananos, tales como el potencial incremento de la producción calorica; Sin embargo, no se ha investigado su eficacia en pollos de engorde criados bajo condiciones de calor ambiental. Objetivo: Investigar los efectos de la β-mananasa en la dieta sobre el crecimiento, la temperatura cloacal, el peso relativo de los órganos linfoides y las características sanguíneas de pollos de engorde criados bajo condiciones climáticas calientes. Métodos: Un total de 1.701 pollos de engorde de 1 día de edad (Ross 308) fueron asignados al azar a uno de tres tratamientos dietarios con nueve repeticiones. A una dieta basal se le adicionó β-mananasa en niveles de inclusión de 0,05 o 0,10%. El experimento duró 30 días. La te...

show abstract

— Editorial — Guidelines for experimental design and statistical analyses in animal studies submitted for publication in the Asian-Australasian Journal of Animal Sciences

Cited by 47 publications

References 19 publications

Amino acid digestibility in plant protein sources fed to growing pigs

Amino acid digestibility in plant protein sources fed to growing pigs

Effects of a Hatchery Byproduct Mixture on Growth Performance and Digestible Energy of Various Hatchery Byproduct Mixtures in Nursery Pigs

Dietary β-mannanase decreases cloacal temperature of broiler chickens under hot conditions without affecting growth performance

Contact Info

Product

Resources

About