Related Experiment Video
Updated: Feb 5, 2026
05:51
Production of Germ-Free Fast-Growing Broilers from a Commercial Line for Microbiota Studies
Published on: June 18, 2020
3.5K
Relationships between feeding behaviors and performance traits in slow-growing yellow broilers
Wei Yan1, Congjiao Sun1, Chaoliang Wen1
1National Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
Poultry Science
|September 22, 2018
Summary
This study reveals that residual feed intake (RFI) in slow-growing yellow broilers is more closely linked to feeding behaviors than feed conversion ratio (FCR). Selecting for improved RFI may lead to fewer feeding visits, shorter eating durations, and faster feeding rates in broilers.
Area of Science:
- Animal Science
- Poultry Science
- Behavioral Ecology
Background:
- Understanding feeding behaviors is crucial for optimizing broiler performance and efficiency.
- Slow-growing broiler breeds present unique physiological and behavioral characteristics.
- Feed efficiency metrics like residual feed intake (RFI) and feed conversion ratio (FCR) are key indicators in poultry production.
Purpose of the Study:
- To investigate the feeding behaviors of group-housed, slow-growing yellow broilers.
- To examine the relationship between specific feeding behaviors and performance traits, particularly feed efficiency.
- To compare feeding behaviors between broilers with divergent levels of feed efficiency.
Main Methods:
- Automatic recording systems were used to monitor feeding events in floor-housed broilers from 57 to 77 days of age.
- Feeding behaviors, including number of visits, duration, rate, and intake per visit, were quantified from over 116,000 feeding records.
- Correlation analyses and comparisons between high and low efficiency groups (based on RFI and FCR) were performed.
Main Results:
- Residual feed intake (RFI) showed significant but weak correlations with most feeding behaviors, unlike feed conversion ratio (FCR).
- Efficient broilers (low RFI) exhibited faster feeding rates and shorter eating durations compared to inefficient broilers (high RFI).
- Number of visits and daily feeding duration were lower in efficient broilers with low RFI, but not significantly different for low FCR groups.
Conclusions:
- Residual feed intake (RFI) is more strongly associated with feeding behaviors in slow-growing yellow broilers than feed conversion ratio (FCR).
- Selection for improved RFI may influence broiler feeding patterns, potentially leading to reduced feeding visits and shorter overall feeding times.
- These findings provide insights into behavioral indicators of feed efficiency in broiler chickens.
Related Concept Videos
02:08Trait and State Self-Esteem
11.5K
The term self-esteem is often used generically, to refer to how people feel about themselves. However, according to research, there are three distinct constructs that should not be used interchangeably (Brown & Marshall, 2006).
11.5K
01:18Polygenic Traits
69.1K
When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
69.1K
02:05Gene Evolution - Fast or Slow?
8.2K
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
In contrast, regions which code...
8.2K
01:49Multiple Allele Traits
38.1K
The Concept of Multiple Allelism
38.1K
01:17Traits and States
560
Personality traits represent consistent patterns in behavior, thoughts, and emotions, reflecting an individual's tendencies across various situations. For example, extraversion, a well-known trait, manifests in individuals as talkative, energetic, and enthusiastic behaviors. These traits are stable over time, offering a reliable framework for predicting how people might act in different contexts. However, they do not define every moment of an individual's life. In contrast to traits,...
560
02:12Relationship Formation
46.2K
What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
46.2K