All Research Papers Published In Livestock Science

Research Article
10.1016/j.livsci.2024.105548

Evaluation of the effects of black pepper extract on the growth performance of grower pigs

Aug 14, 2024
Livestock Science
Jian Ying Zhang + 3 more +3

Research Article
2
10.1016/j.livsci.2024.105532

Pre-housing fasting and diet physical form impact broiler chicks’ gastrointestinal development along the first week of housing

Jul 24, 2024
Livestock Science
Marina Antunes Augusto + 6 more +6

Research Article
9
10.1016/j.livsci.2024.105502

Performance in dairy cows and calves with or without cow-calf contact on pasture

May 28, 2024
Livestock Science
Juni Rosann E Johanssen + 4 more +4

Research Article
10
10.1016/j.livsci.2024.105492

The effects of full-time, part-time and no cow-calf contact on calf health, behaviour, growth and labour in pasture-based dairy systems

May 17, 2024
Livestock Science
Alison M Sinnott + 5 more +5

Front Matter
10.1016/s1871-1413(24)00073-8

Editorial Board

Apr 01, 2024
Livestock Science

Research Article
10.1016/j.livsci.2024.105456

The effects of phenotyping and genotyping strategies, and the use of conventional or organic sires on genetic gain in an organic pig population

Mar 16, 2024
Livestock Science
R.m Zaalberg + 5 more +5

Optimizing organic pig breeding schemes depends on how to best allocate resources to phenotyping and genotyping. This study investigates how phenotyping and genotyping strategies affect genetic gain in a small organic pig population. We used stochastically simulated breeding schemes aimed at producing three-way crossbred finisher pigs. The simulated breeding schemes varied in the availability of phenotypes and genotypes for purebreds and crossbreds, the origin of the sire, and the genetic correlation between purebred and crossbred performance. For each simulated breeding scheme, genetic gain and rate of inbreeding were collected for up to 100 replicates. Phenotyping of crossbred individuals did not improve the genetic gain in the purebreds or the crossbreds. Genotyping purebred sows did improve genetic gain in both purebreds and crossbreds. Genetic gain and rate of inbreeding were maximized when internal sires were used, assuming strong GxE between organic and conventional production systems. Yet, breeding schemes that used internal sires had a larger variance in the genetic gain than those that used external sires. In conclusion, breeding schemes for organic pigs can be optimized by using internal sires and by genotyping the purebred parents. Yet, the rate of inbreeding and population size should be taken into careful consideration when developing an independent breeding program for a small (organic) population.

Research Article
13
10.1016/j.livsci.2024.105435

Animal growth models as a tool to estimate resilience indicators in Bos indicus and Bos taurus heifers: Selection effects and genetics parameters

Feb 29, 2024
Livestock Science
Gustavo Roberto Dias Rodrigues + 8 more +8

Research Article
1
10.1016/j.livsci.2024.105426

Genomic inbreeding estimated through runs of homozygosity in Moura pigs and four commercial swine breeds

Feb 16, 2024
Livestock Science
Karine Aparecida Rodrigues De Souza + 11 more +11

Research Article
3
10.1016/j.livsci.2024.105417

The relation and variation of OBCFA content in rumen fluid, blood and milk from lactating dairy cows

Feb 01, 2024
Livestock Science
Zhijie Luo + 2 more +2

Front Matter
10.1016/s1871-1413(24)00004-0

Editorial Board

Jan 01, 2024
Livestock Science