The lifetime egg production capacity of laying hens (ie laying persistency) has increased
tremendously in the last 50 years from 220 eggs in 1960 to 500 eggs in 2019. To improve …

1. Within a single year, long-distance migrants undergo a minimum of four cycles of fuel
storage and depletion because their migrations have at least one stopover. Each cycle …

In order to maximize the utility of simulation models for decision making, accurate estimation
of growth parameters and associated variances is crucial. A mixed Gompertz growth model …

BACKGROUND This study aimed to determine the effects of a mixture of glycerol
monolaurate and cinnamaldehyde (GCM) supplementation on the laying performance, egg …

The amount and timing of growth are important factors that affect age at first egg, body
conformation, reproductive performance, and hunger in broiler breeders. To investigate the …

Effect of photoperiod and food duration on body weight gain, energy intake, energy
expenditure, and sexual development were investigated in two strains of Japanese quail …

Growth and development are complex phenomena. To date, most growth modeling research
has focused on a single growth phase, which is sufficient and useful for describing ad libitum …

Understanding the effect of nutrition on pullet growth curves and body composition may help
to design new feeding strategies that influence body composition and (long-term) laying …

Appropriate evaluation of BW and gain during rearing is required for optimal extended
laying performance in laying hens. The objective of this study was to compare monophasic …

Birds of marine environments have specialized glands to excrete salt, the saltglands.
Located on the skull between the eyes, the size of these organs is expected to reflect their …