Untitled Quiz

70% of the cost of poultry products in the industry.

Development of high-yielding crops by scientists like Norman Borlaug, which influenced the poultry industry.

Soybeans are a crucial source of protein and oil, recognized by George Washington Carver in the early 20th century.

A specific mixture of ingredients used to feed laying hens (layers).

Corn makes up 80% of the main layer feed formula.

Essential component in layer feed, providing calcium for egg shell formation.

Measurement of the metabolizable energy content in poultry feed per kilogram.

Ratio of crude protein in the layer feed formula.

percentage of crude protein from poultry to animal ingredients in the formula.

Amino acids influence poultry nutrition and product quality.

A 2023 base formula for layer feed.

Comparison of costs of different layer feed formulations.

The cost of ingredients in the formula.

Specific nutritional demands of layer chickens.

Additional functionalities of feed ingredients beyond basic nutrition.

Dried distillers grains with solubles, a byproduct of ethanol production from corn, potentially containing yeast prebiotics.

Hens drink twice the amount of feed they eat daily, a significant portion shortly after laying an egg, and water is essential to egg production.

Commercial layer hen egg production has improved dramatically (more eggs per hen) in the past two decades.

Top flocks maintain egg production of above 95% in nearly 30 weeks.

Adjusting a layer hen's diet to control egg size and optimize shell quality.

Maximum egg production typically occurs for hens aged 35 to 70 weeks.

70ml of water is needed for each egg produced.

Depriving hens of water for 6 to 8 hours can affect production for 7-10 days; 24 hours can induce a molt.

Flocks that have higher egg production per hen housed compared to past decades.

Data collected over time (2009-2018) on 14 Lohmann flocks to analyze weekly performance, looking at barn conditions, feed programs, and pullet growers.

Higher barn temperatures may lead to decreased feed intake in laying hens.

The amount of energy (in kilocalories) a laying hen consumes daily.

The weight of feed consumed daily.

Calculations focusing on a 1.65 kg bird producing a 59 gram egg with a 20% feather loss.

A typical feed formulation containing 2850 kilocalories of metabolizable energy per kilogram.

Graphical representation showing the percentage of different egg grades (Undergrades, %M, %L, %XL) produced by a flock of hens from 2009 to 2017.

Mean age of a laying hen flock at which 20% or fewer eggs are in the 'M' size grade.

Consideration of if the proportion of 'M' graded eggs (i.e. smaller size) decreased more drastically compared to the previous years.

Percentage of eggs graded as medium size within the given flock of hens.

Average rate of change in a 2-week period after the proportion of 'M' size eggs is considered.

Egg production (per 365 days) demonstrates a slight upward trend with a correlation coefficient of approximately 0.7 from 2009 to 2017.

The top egg-producing flocks in 2016 were approximately 75-95% efficient compared to established standards.

Feed intake, measured in grams per day and hen, showed a modest increase from 2009 to 2017, with a partial correlation coefficient.

The age of a hen in weeks, important for monitoring egg production and feed intake.

The weight of eggs produced by a hen daily in grams.

Energy consumed by a bird in kcal of metabolizable energy, calculated using body weight, temperature, egg mass and weight gain.

Methods for measuring and predicting feed intake, potentially considering environmental temperature.

Comparison of feed and energy consumption measurements between methods in 2012 and 2018 and their relation to barn temperatures.

The Daily weight (in grams) of eggs produced.

Measurement of feed intake (in grams/day/hen) nearing the end of a chicken flock's lifespan.