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A method for judging cold discomfort of broiler chickens based on time allocation of intrusion behavior

A behavioral and time-based technology, applied in applications, poultry farming, poultry cages or houses, etc., can solve problems such as reduced reliability, achieve improved time allocation, and avoid the effect of reduced production performance

Active Publication Date: 2016-06-08
INST OF ANIMAL SCI OF CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The acquisition of physiological and endocrine indicators often requires capture and blood collection, which reduces the reliability of these indicators in reflecting the effects of environmental factors

Method used

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  • A method for judging cold discomfort of broiler chickens based on time allocation of intrusion behavior
  • A method for judging cold discomfort of broiler chickens based on time allocation of intrusion behavior
  • A method for judging cold discomfort of broiler chickens based on time allocation of intrusion behavior

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, modeling

[0031] 1. Definition of harassment

[0032] Intrusion behavior: A chicken pecks with its beak, kicks with its claws, squeezes a certain part of another chicken (excluding pecking at the anus) or suddenly flaps its wings to scare another chicken, and the above actions occur alternately.

[0033] 2. Behavior collection

[0034] The cage area is 1.36m 2 (length 1.70mx width 0.80m), each cage has a bracket, and a digital infrared video recorder (Model: BN-IPC4-3MD) is installed in the middle of the bracket, and its maximum resolution is 1920x1080. The height of the infrared video recorder from the bottom of the cage can be adjusted freely according to the cage area of ​​the video and the clarity of shooting the test chicken. During the experiment, all broilers in the cages were recorded in real time, and the captured video was transmitted to the 24-channel digital hard disk router (NVR, Model: 6224k) storage device through the Internet for later ...

Embodiment 2

[0042] Embodiment 2, judging that the broiler chicken to be tested is cold and uncomfortable

[0043] 1. Test materials and animals

[0044] Raise 150 broiler chickens of 1-21dAA (half male and half female) in the same feeding room, fed the same diet, the temperature in the first week was 32-35°C, and the temperature decreased by 2-3°C every week. 24h light, free access to food and water.

[0045] Select 144 22-day-old healthy AA broilers with similar body weight, half male and half female, and equally distributed to 3 environmental control rooms, each environmental control room is used as a treatment, and three single-layer rearing cages (Length 1.70mx width 0.80m) are placed in the same position, each cage is divided into two replicates on average, each handles 6 replicates, and each replicates 8 chickens (half male and female), random in each replicate Choose a rooster and a hen, mark their backs with biological non-toxic dyes of different colors, as test target chickens....

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Abstract

The invention discloses a method for judging cold discomfort of broiler chickens according to intrusion behavior time distribution. The method comprises the following steps that (1) after an environment temperature to be evaluated is reached, the broiler chickens are bred for two hours, the time for intrusion behaviors conducted by the broiler chickens to be detected in a cage within a certain period is detected; (2) a model is used, a comfortable temperature breeding condition is used for comparison, cold discomfort of the broiler chickens is judged or judged in an auxiliary mode. According to the non-invasive method for judging cold discomfort of the broiler chickens, the change of intrusion behavior and the time distribution within two hours of cold stimulation can be detected, and cold discomfort of the broiler chickens can be judged in advance according to the change. In addition, the method can provide technical bases for effective implementation of real-time monitoring to the heat comfortable environment of barn feeding broiler chickens by computers, and a guarantee is provided for welfare improving of barn feeding broiler chickens and improving of production performance of benefits.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to the field of animal behavior, and in particular to a method for judging broiler chickens that are cold and uncomfortable according to the time allocation of intrusion behavior. Background technique [0002] Thermal environment comfort management of broilers is essential for modern industrialized broiler production. House-fed broilers have the highest welfare, the least energy consumption, and the highest production efficiency when they are in the thermal comfort zone. Cold stress leads to decreased broiler performance, disease resistance and meat quality. Broiler production at home and abroad has already widely used electronic equipment and computers to precisely control the temperature in the house in order to achieve the best economic benefits. Therefore, it is very important to find suitable indicators and methods for thermal comfort evaluation. [0003] Currently used to evalu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K31/18A01K45/00
Inventor 张敏红胡春红冯京海苏红光熊艳丹
Owner INST OF ANIMAL SCI OF CHINESE ACAD OF AGRI SCI
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