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Second litter syndrome in Iberian pig breed: factors influencing the performance
(Elsevier, 2022-11-09)
Second litter syndrome (SLS) consists of a loss of prolificacy in the second parity (P2), when a sow presents the same or lower results for litter size than in the first parity (P1). This syndrome has ...
Single-step genome-wide association study for social genetic effects and direct genetic effects on growth in Landrace pigs
(Nature Research, 2020-09-11)
In livestock social interactions, social genetic effects (SGE) represent associations between phenotype of one individual and genotype of another. Such associations occur when the trait of interest is ...
Genetic variability of functional longevity in five rabbit lines
(Cambridge University Press, 2020-01-22)
The objectives of this study were to analyse the differences in the genetic determination of functional longevity in five Spanish lines of rabbits and to check how different systematic factors might ...
Genetic comparison of milk production and composition in three maternal rabbit lines
(Universidad Politécnica de Valencia, 2014-12-18)
The aim of this study was to compare 3 Spanish maternal rabbit lines (A, V and LP) in terms of milk production and composition. These lines were founded on different criteria but selected for litter ...
Mixed management in growing and finishing pigs: Differences between gender and their impacts on behavior, growth performance, and physiological parameters
(Public Library of Science, 2023-04-13)
Mixing, a common management strategy used to regroup pigs, has been reported to impair individual performance and affect pig welfare because of the establishment of a new social hierarchy after regrouping. ...
Influence of pre-storage incubation on hatchability traits, thyroid hormones, antioxidative status and immunity of newly hatched chicks at two chicken breeder flock ages
(Elsevier, 2017-04-17)
Egg storage longer than 7 days is associated with negative effects on hatchability traits. Pre-storage incubation has been a suggested method to reduce the negative effects of long-term storage times ...
In vivo safety evaluation of the Clostridium butyricum MIYAIRI 588 strain in broilers, piglets, and turkeys
(SAGE Publications, 2019-02-11)
Clostridium butyricum MIYAIRI 588 (CBM 588) is a nonpathogenic, anaerobic, gram-positive bacillus characterized by the production of short-chain fatty acids, including butyrate. The safety and tolerance ...
Indirect genetic effects on the relationships between production and feeding behaviour traits in growing Duroc pigs
(Cambridge University Press, 2019-10-01)
Performance and feeding behaviour traits in growing pigs could be affected by social interaction effects when animals are raised in group. So, properly knowing the genetic correlations between direct ...
Inbreeding depression load for litter size in Entrepelado and Retinto Iberian pig varieties
(Oxford University Press, 2019-03-14)
Individual-specific hidden inbreeding depression load (IDL) can be accounted for in livestock populations by appropriate best linear unbiased prediction approaches. This genetic effect has a recessive ...
Comparison of behaviour, performance and mortality in restricted and ad libitum-fed growing rabbits
(Elsevier, 2015-03-02)
The objective of this study was to determine whether rabbits fed in a restricted regimen (75%) showed increased competition for feeding, drinking and use of specific areas of the cages as compared with ...