CATDOLL : CATDOLL: Pig farming technology: How to calculate the weight gain and meat yield of nursery pigs

The weight gain and meat yield of nursery pigs are one of the important indicators that farmers pay attention to. Correctly calculating the weight gain and meat yield of nursery pigs will help to formulate scientific and reasonable feeding and management strategies and improve pig production efficiency. This article will introduce how to calculate the weight gain and expected meat yield of nursery pigs, and explain the calculation method in detail.

1. Calculation of nursery pig weight

The weight calculation of nursery pigs is usually determined using the weight growth rate and the age during the nursery period. The weight growth rate refers to the weight gain of the nursery pigs every day, usually in grams. The age in days refers to the age of the nursery pigs, in days.

The weight growth rate of nursery pigs can be calculated using the following formula:

Weight gain rate = (final weight - initial weight) / number of days in care

Among them, the final weight refers to the weight at the end of the nursery period, the initial weight refers to the weight at the beginning of the nursery period, and the number of nursery days refers to the total number of days in the nursery period.

For example, if the nursery period is 100 days, the final weight is 120 kg, and the initial weight is 80 kg, then the weight growth rate is:

Weight gain = (120 - 80) / 100 = 0.4 g/day

2. Calculation of the amount of pork to be raised

The meat mass of a nursery pig refers to the weight of the muscle in the pig, usually measured in kilograms. The meat mass of a nursery pig can be estimated using the weight gain and muscle content.

The muscle mass of nursery pigs can be calculated using the following formula:

Muscle content = final body weight * meat-to-muscle ratio

Among them, the final weight refers to the weight at the end of the nursery period, and the meat-to-muscle ratio refers to the proportion of muscle in the body of the nursery pig.

The meat-to-muscle ratio is determined based on factors such as breed and feeding management, and is usually between 75% and 85%.

For example, if the final body weight is 120 kg and the meat-to-muscle ratio is 80%, the muscle content of the nursery pig is:

Muscle mass = 120 * 0.8 = 96 kg

3. Recommended pig feeding and management strategies

In order to improve the weight gain and muscle content of nursery pigs, farmers can adopt the following feeding and management strategies:

• Reasonable feed formula: According to the needs of nursery pigs, the feed formula is scientifically formulated to provide appropriate amount of energy and protein to promote the growth and development of pigs.
• Regular bioassay: By regularly measuring the weight and body shape of nursery pigs, feeding and management strategies can be adjusted in a timely manner to ensure the health and growth of pigs.
• Suitable environmental conditions: Maintain comfortable temperature, humidity and ventilation conditions, provide clean drinking water and feed, and reduce the impact of disease and stress on pigs.
• Reasonable stocking density: According to the resources and facilities of the farm, the stocking density of nursery pigs should be reasonably arranged to avoid overcrowding that affects the growth of pigs.

In summary, by calculating the weight gain and meat content of nursery pigs, farmers can formulate scientific and reasonable feeding and management strategies to improve pig production efficiency. Reasonable feed formula, regular bioassay, suitable environmental conditions and reasonable stocking density are recommended feeding and management strategies. I hope this article will help you understand pig farming technology and improve the weight gain and muscle content of nursery pigs.

Thank you for reading this article. I hope this article can help you better understand the weight gain and meat volume calculation methods of nursery pigs and bring help to your breeding business.