WO2009074153A1 - Method for prediction of time of birth, climate control and warning in animal houses and application hereof - Google Patents

Method for prediction of time of birth, climate control and warning in animal houses and application hereof Download PDF

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Publication number
WO2009074153A1
WO2009074153A1 PCT/DK2008/000424 DK2008000424W WO2009074153A1 WO 2009074153 A1 WO2009074153 A1 WO 2009074153A1 DK 2008000424 W DK2008000424 W DK 2008000424W WO 2009074153 A1 WO2009074153 A1 WO 2009074153A1
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WO
WIPO (PCT)
Prior art keywords
animal
birth
time
farrowing
sow
Prior art date
Application number
PCT/DK2008/000424
Other languages
French (fr)
Inventor
Heidi Mai-Lis Andersen
Lene Juul Pedersen
Erik JØRGENSEN
Jens Malmkvist
Original Assignee
Skov A/S
Aarhus Universitet
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Skov A/S, Aarhus Universitet filed Critical Skov A/S
Publication of WO2009074153A1 publication Critical patent/WO2009074153A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D17/00—Devices for indicating trouble during labour of animals ; Methods or instruments for detecting pregnancy-related states of animals
    • A61D17/008—Devices for indicating trouble during labour of animals ; Methods or instruments for detecting pregnancy-related states of animals for detecting birth of animals, e.g. parturition alarm
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/02—Pigsties; Dog-kennels; Rabbit-hutches or the like
    • A01K1/0218—Farrowing or weaning crates
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K29/00—Other apparatus for animal husbandry
    • A01K29/005—Monitoring or measuring activity, e.g. detecting heat or mating

Definitions

  • the invention relates to a method for prediction of time of birth, climate control, warning and alarm in animal stables or animal houses with divisions for gestating animals.
  • the invention also relates to the application of the method.
  • Farrowing houses are typically divided in farrowing pens for each individual gestating sow.
  • the house temperature which according to the known technique is used in farrowing houses, is mainly based on the needs of the sows and is the same for the whole farrowing house.
  • farrowing pens are often designed with a piglet cave or an area for the piglets, which is heated separately for these.
  • heating lamps are often mounted behind the sow and opposite the sow's udder in the first day after farrowing to meet the special heat needs of the suckling pigs.
  • the added heating sources such as the mentioned heating lamps are turned on manually at estimated time of farrowing or after observed farrowing.
  • Newborn piglets are especially sensitive towards low temperatures, which contribute to lowering the body temperature, and thereby makes the suckling pigs less mobile, which again reduces their possibility of reaching the teats of the sow and the vital raw milk.
  • the time right around farrowing is in that connection especially critical since the piglets are wet right after the birth and are therefore easily cooled. They also need energy for moving up and forward so they can suck the teats of the sow.
  • the newborn piglets do furthermore not move to the area with special heating but keep close to the sow, which again increases the risk of them being cooled too much.
  • the known technique has therefore e.g. the problem that the time of farrowing is not known, which is why extra heat is in many cases not supplied in time to newborn piglets, which therefore results in unnecessary loss of piglets.
  • the object of the invention is achieved by a method of the type stated in the introductory portion of claim 1 , which is characterized in that the time of birth for each animal is predicted from analysis of measured parameters including:
  • the predicted time of birth is used for controlling the climate around the animal giving birth, including that the temperature is increased around the time of birth and that the increased temperature is maintained 1 to 2 days after ended birth.
  • the invention also relates to the application of the method since the method is used on farrowing pens.
  • FIG. 1 shows a simplified diagram of a farrowing house consisting of two farrowing pens.
  • Fig. 2 shows a sow with newborn piglets in a farrowing pen provided with a piglet cave.
  • a farrowing pen 1 which contains a sow 2 with a suckling piglet 4 and other piglets 5, which are placed in an area provided with heating elements 6, where these heating elements can be a type, which can also function as cooling elements and thereby be used for temperature optimisation in the stated area.
  • the area, which is covered by the heating/cooling elements 6 is also provided with a transducer 7, which can e.g. be a thermometer or an infrared detector, which can be used to control the temperature in the area.
  • a transducer 7 which can e.g. be a thermometer or an infrared detector, which can be used to control the temperature in the area.
  • the transducer 7 is connected to a computer based control unit 11 , which can signal process data from the transducer 7.
  • the sow 2 is provided with a measuring unit 3 consisting of e.g. an ear clip based temperature sensor, which can register the surface temperature of the sow and send measured data wirelessly 10 to the control unit 11.
  • a measuring unit 3 consisting of e.g. an ear clip based temperature sensor, which can register the surface temperature of the sow and send measured data wirelessly 10 to the control unit 11.
  • heating/cooling elements 9 which can be used to optimise the temperature around the sow.
  • the farrowing pen 2 is thus divided in two temperature areas or temperature zones not dependent on each other, which are covered by respectively the heating/cooling elements 9 and 6 and which is dedicated to respectively the sow and the piglets.
  • the pen 2 is also provided with a feed and drinking water device 8, which also via a cable 13 is connected to the control unit 11 , which can thereby receive data concerning the drinking water consumption of the sow.
  • the farrowing pen 2 can be provided with a camera, including a digital vision based camera, which can continuously monitor the behavioural activity of the sow and after farrowing also register the behaviour of the piglets.
  • the camera can e.g. be placed centrally at the in fig. 1 shown drinking water unit 8.
  • the surveillance camera can besides monitoring the behaviour of the animals also be used for continuously monitoring the surface temperature of the animals.
  • the behavioural activity of the sow can also be recorded or monitored with e.g. accelerometers, which can e.g. be placed in an ear clip from which data can be transmitted wirelessly.
  • accelerometers which can e.g. be placed in an ear clip from which data can be transmitted wirelessly.
  • Data from the surveillance camera can be transferred via cables or wirelessly to the control unit 11 and there be included in the total signal processing.
  • the farrowing house is provided with another farrowing pen 14, which in terms of functionality is identical with 2.
  • the sow's surface temperature increases
  • the sow's pattern of drinking water consumption is changed from the normal state
  • the sow's behavioural activity increases
  • a warning is sent, e.g. wirelessly via an antenna 12, to the farmer or the person responsible for the house.
  • the warning to the farmer can e.g. be a so-called sms message, which provides information about the farrowing pen's number and placement and the identity and state of the sow.
  • the farmer can likewise wirelessly for instance through his mobile telephone receive live images from the pen's surveillance camera and in the same way receive other updated data as for instance data about the sow's surface temperature. If the pen is provided with a microphone, the farmer will obviously also be able to receive real time sound from the pen.
  • the predicted time of farrowing is used for automatically increasing the temperature in the farrowing pen around the sow right before the calculated time of birth / farrowing.
  • the optimal temperature is maintained for the piglets around the sow in this period.
  • each house division is divided in terms of zones with a zone for the pregnant animal and a zone for the offspring and that the climate including the heat and / or the air humidity can automatically be controlled individually or dependent on each other in each zone as a function of measured and / or estimated parameters including mainly:
  • the farrowing house can thus at any time be optimised for each sow and its offspring adjusted to the time before, during and after farrowing.
  • the animals, after the time of birth, are subjected to surveillance by registering one or more parameters and that the registered parameters are continuously analysed and that an alarm 15 is submitted / sent to the people responsible for the house facility when one or more of the registered parameters are changed from a normal interval, where these parameters preferably include:
  • the surveillance with a view to alarm is typically maintained for 5 weeks after the farrowing.
  • the invention can in principle be used and adapted to all breeding animals but is in a preferred embodiment optimised for application at farrowing pens in farrowing houses.
  • Fig. 2 shows an example of a farrowing pen with a sow 16 and newborn piglets 17 where the pen is provided with a so-called piglet cave 18 and where the pen in fig 2 can be mounted in the same way as described in relation to fig. 1.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Zoology (AREA)
  • Veterinary Medicine (AREA)
  • Pregnancy & Childbirth (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Housing For Livestock And Birds (AREA)

Abstract

The invention relates to a method for prediction of time of birth, climate control, warning and alarm in animal houses with divisions for gestating animals. It is a part of the invention that e.g. farrowing pens are provided with transducers such that parameters such as the surface temperature of the gestating / pregnant animal, water consumption and activity can be monitored. Data from the transducers are signal processed in a computer-based control unit and are used for prediction of the time of birth. When the calculated time of birth approaches, a warning is automatically sent to the farmer and the temperature around the sow is optimised for the future newborn piglets. The system can furthermore be used for monitoring and automatic climate control after farrowing. Thus, an alarm can also be sent automatically to the farmer if the conditions in the farrowing pen are developing in an inappropriate way.

Description

Method for prediction of time of birth, climate control and warning in animal houses and application hereof.
The invention relates to a method for prediction of time of birth, climate control, warning and alarm in animal stables or animal houses with divisions for gestating animals.
The invention also relates to the application of the method.
It is known to divide animal houses in such a way that gestating animals are placed in separate house facilities such as farrowing houses for sows.
Farrowing houses are typically divided in farrowing pens for each individual gestating sow.
The house temperature, which according to the known technique is used in farrowing houses, is mainly based on the needs of the sows and is the same for the whole farrowing house.
Since the sow's need for heat is lower than that of the piglets, farrowing pens are often designed with a piglet cave or an area for the piglets, which is heated separately for these.
Furthermore e.g. heating lamps are often mounted behind the sow and opposite the sow's udder in the first day after farrowing to meet the special heat needs of the suckling pigs.
The added heating sources such as the mentioned heating lamps are turned on manually at estimated time of farrowing or after observed farrowing. Newborn piglets are especially sensitive towards low temperatures, which contribute to lowering the body temperature, and thereby makes the suckling pigs less mobile, which again reduces their possibility of reaching the teats of the sow and the vital raw milk.
The chance of survival for the suckling pigs is thus highly dependent on that they are not cooled too much.
The time right around farrowing is in that connection especially critical since the piglets are wet right after the birth and are therefore easily cooled. They also need energy for moving up and forward so they can suck the teats of the sow.
In the first one to two days after farrowing the newborn piglets do furthermore not move to the area with special heating but keep close to the sow, which again increases the risk of them being cooled too much.
It has hitherto been commonly assumed that high temperatures in the farrowing pen around the time of farrowing will have a negative effect on the sow, which is why many farmers only supply extra heat to the newborn piglets when it is found out that farrowing has occurred.
The known technique has therefore e.g. the problem that the time of farrowing is not known, which is why extra heat is in many cases not supplied in time to newborn piglets, which therefore results in unnecessary loss of piglets.
It is therefore an object of the invention to improve the known method.
The object of the invention is achieved by a method of the type stated in the introductory portion of claim 1 , which is characterized in that the time of birth for each animal is predicted from analysis of measured parameters including:
- the gestating animal's surface temperature
- the gestating animal's water consumption - the behaviour of the gestating animal
In this way it thus becomes possible to achieve an appropriate and precise prediction of the time of farrowing, whereafter the farmer can automatically be warned in time.
As stated in claim 4 it is furthermore a characteristic of the invention that the predicted time of birth is used for controlling the climate around the animal giving birth, including that the temperature is increased around the time of birth and that the increased temperature is maintained 1 to 2 days after ended birth.
It is hereby achieved that extra heat can automatically be supplied in time to newborn piglets, whereby their chances of survival are increased significantly.
Further preferred embodiments of the method are stated in claims 2, 3 and 5 and 6.
As mentioned the invention also relates to the application of the method since the method is used on farrowing pens.
Hereby it thus becomes possible to increase the survival chances for newborn piglets quite significantly.
The invention will now be explained more fully with reference to the drawings, in which: Fig. 1 shows a simplified diagram of a farrowing house consisting of two farrowing pens.
Fig. 2 shows a sow with newborn piglets in a farrowing pen provided with a piglet cave.
In fig 1 is seen a farrowing pen 1 , which contains a sow 2 with a suckling piglet 4 and other piglets 5, which are placed in an area provided with heating elements 6, where these heating elements can be a type, which can also function as cooling elements and thereby be used for temperature optimisation in the stated area.
The area, which is covered by the heating/cooling elements 6 is also provided with a transducer 7, which can e.g. be a thermometer or an infrared detector, which can be used to control the temperature in the area.
The transducer 7 is connected to a computer based control unit 11 , which can signal process data from the transducer 7.
The sow 2 is provided with a measuring unit 3 consisting of e.g. an ear clip based temperature sensor, which can register the surface temperature of the sow and send measured data wirelessly 10 to the control unit 11.
Over the area where the sow 2 is placed are mounted heating/cooling elements 9, which can be used to optimise the temperature around the sow.
The farrowing pen 2 is thus divided in two temperature areas or temperature zones not dependent on each other, which are covered by respectively the heating/cooling elements 9 and 6 and which is dedicated to respectively the sow and the piglets.
The pen 2 is also provided with a feed and drinking water device 8, which also via a cable 13 is connected to the control unit 11 , which can thereby receive data concerning the drinking water consumption of the sow.
Besides the described components the farrowing pen 2 can be provided with a camera, including a digital vision based camera, which can continuously monitor the behavioural activity of the sow and after farrowing also register the behaviour of the piglets.
The camera can e.g. be placed centrally at the in fig. 1 shown drinking water unit 8.
If the mentioned surveillance camera has a sufficiently broad-spectrum to record data in the infrared area, the surveillance camera can besides monitoring the behaviour of the animals also be used for continuously monitoring the surface temperature of the animals.
The behavioural activity of the sow can also be recorded or monitored with e.g. accelerometers, which can e.g. be placed in an ear clip from which data can be transmitted wirelessly.
Data from the surveillance camera can be transferred via cables or wirelessly to the control unit 11 and there be included in the total signal processing.
As it will appear from fig. 1 , the farrowing house is provided with another farrowing pen 14, which in terms of functionality is identical with 2.
With a farrowing pen 2 provided with the above-mentioned components and transducers it is thus possible before farrowing continuously to measure the sow's surface temperature, drinking water consumption and behavioural activity.
Tests have shown that these parameters can be used for determination and identification of the time of birth since the sow in the time until the farrowing and birth will have the following characteristics in relation to the mentioned parameters:
The sow's surface temperature increases The sow's pattern of drinking water consumption is changed from the normal state The sow's behavioural activity increases
Based on the described knowledge about the stated parameters' change in the time before farrowing there has been developed algorithms for the computer based control unit 11 , which with high precision can predict the sow's time of birth / farrowing.
When the algorithm has calculated an expected time of birth a warning is sent, e.g. wirelessly via an antenna 12, to the farmer or the person responsible for the house.
The warning to the farmer can e.g. be a so-called sms message, which provides information about the farrowing pen's number and placement and the identity and state of the sow.
The farmer can likewise wirelessly for instance through his mobile telephone receive live images from the pen's surveillance camera and in the same way receive other updated data as for instance data about the sow's surface temperature. If the pen is provided with a microphone, the farmer will obviously also be able to receive real time sound from the pen.
Besides the warning of the farmer, the predicted time of farrowing is used for automatically increasing the temperature in the farrowing pen around the sow right before the calculated time of birth / farrowing.
Since the newborn piglets stay close to the sow in one to two days after the birth, the optimal temperature is maintained for the piglets around the sow in this period.
New tests have moreover shown that the sow, in contrast to the hitherto assumption, prefers a relatively high surrounding temperature around the time of birth so by increasing the temperature around the sow in this time span, the well-being of the animal is also increased.
With a farrowing house as the one shown in fig. 1 , it is also practically possible that each house division is divided in terms of zones with a zone for the pregnant animal and a zone for the offspring and that the climate including the heat and / or the air humidity can automatically be controlled individually or dependent on each other in each zone as a function of measured and / or estimated parameters including mainly:
- zone temperature
- zone humidity - the pregnant animal's surface temperature
- the pregnant animal's behaviour
- the pregnant animal's consumption of drinking water
- the temperature of the offspring
- the activity of the offspring - the placement of the animals
- the time of birth The farrowing house can thus at any time be optimised for each sow and its offspring adjusted to the time before, during and after farrowing.
It is therefore also a part of the invention that the animals, after the time of birth, are subjected to surveillance by registering one or more parameters and that the registered parameters are continuously analysed and that an alarm 15 is submitted / sent to the people responsible for the house facility when one or more of the registered parameters are changed from a normal interval, where these parameters preferably include:
- the surface temperature of the animal mother
- the behaviour of the mother animal
- the drinking water consumption of the mother animal
- the temperature of the offspring - the activity of the offspring
- the placement of the animals
By submitting an alarm to the farmer it is achieved that he or she can often act in due time before an unintended development in a farrowing pen becomes fatal.
The surveillance with a view to alarm is typically maintained for 5 weeks after the farrowing.
The invention can in principle be used and adapted to all breeding animals but is in a preferred embodiment optimised for application at farrowing pens in farrowing houses.
Fig. 2 shows an example of a farrowing pen with a sow 16 and newborn piglets 17 where the pen is provided with a so-called piglet cave 18 and where the pen in fig 2 can be mounted in the same way as described in relation to fig. 1.
Practical tests with the invention have resulted in the surprisingly good result that each sow in average delivers / gives birth to an extra living pig per year in relation to sows, which are farrowing in pens with the hitherto known technique.

Claims

P A T E N T C L A I M S
1. Method for prediction of time of birth, climate control, warning and alarm in animal stables or animal houses with divisions for gestating animals characterized in that the time of birth for each animal is predicted from analysis of measured parameters including:
- the gestating animal's surface temperature
- the gestating animal's water consumption - the behaviour of the gestating animal
2. Method according to claim 1 characterized in that the time of birth is predicted on the basis of one or more analysis results from measured parameters including preferably by: - The sow's surface temperature increases
- The sow's pattern of drinking water consumption is changed from the normal state
- The sow's behavioural activity increases
3. Method according to claim 1 or 2 characterized in that the predicted time of birth is used for warning of the person responsible for the house facility.
4. Method according to claim 1 , 2 or 3 characterized in that the predicted time of birth is used for controlling the climate around the farrowing animal including that the temperature is increased around the time of birth and that the increased temperature is maintained preferably 1 to 2 days after ended birth.
5. Method according to one or more of claims 1 to 4 characterized in that each house division is divided in terms of zones with a zone for the pregnant animal and a zone for the offspring and that the climate including the heat and / or the air humidity can automatically be controlled individually or dependent on each other in each zone as a function of measured and / or estimated parameters including mainly:
- zone temperature
- zone humidity
- the pregnant animal's surface temperature
- the pregnant animal's behaviour - the pregnant animal's consumption of drinking water
- the temperature of the offspring
- the activity of the offspring
- the placement of the animals
- the time of birth
6. Method according to one or more of claims 1 to 5 characterised in that the apimals, after the time of birth, are subjected to surveillance by registering one or more parameters and that the registered parameters are continuously analysed and that an alarm 15 is submitted / sent to the people responsible for the house facility when one or more of the registered parameters are changed from a normal interval, where these parameters preferably include:
- the surface temperature of the animal mother
- the behaviour of the mother animal - the drinking water consumption of the mother animal
- the temperature of the offspring
- the activity of the offspring
- the placement of the animals
7. Application of method according to one or more of claim 1 to 6 characterized in that the method is used at / on farrowing pens.
PCT/DK2008/000424 2007-12-10 2008-11-28 Method for prediction of time of birth, climate control and warning in animal houses and application hereof WO2009074153A1 (en)

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DKPA200701759 2007-12-10

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014017435A1 (en) * 2014-11-25 2016-05-25 FBN - Leibniz-Institut für Nutztierbiologie Method for the qualitative prediction of birth dates in farm animals
WO2017034391A1 (en) * 2015-08-21 2017-03-02 Lely Patent N.V. Method and device to automatically detect calving
CN108935137A (en) * 2018-07-16 2018-12-07 华南农业大学 A kind of novel sow welfare intelligence delivery room, colony house and application method
SE1751156A1 (en) * 2017-09-19 2019-03-20 Norwegian Univ Of Life Sciences System and method for prediction of farrowing onset
CN110537493A (en) * 2019-09-30 2019-12-06 厦门市成翌实业有限公司 method for realizing automatic temperature adjustment of pet house
EP3547828A4 (en) * 2016-12-02 2020-07-01 Jyga Concept Inc. Farrowing system with piglet birth detection and method for operating the same
CN112400734A (en) * 2019-08-21 2021-02-26 成都睿畜电子科技有限公司 Sow health monitoring method and monitoring system
WO2022172193A1 (en) * 2021-02-15 2022-08-18 Lely Patent N.V. System for monitoring a calving mammal
WO2023095966A1 (en) * 2021-11-29 2023-06-01 주식회사 다모아텍 Fertilizable term determination sensor implantable in body of livestock, and method for determining fertilizable term using sensor

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WO2002003881A1 (en) * 2000-07-10 2002-01-17 Stephane Van Den Berge Device for measuring an animal's temperature
WO2006023878A1 (en) * 2004-08-20 2006-03-02 Equividi, Inc. Method and apparatus for animal environmental and health monitoring
CA2540832A1 (en) * 2006-03-21 2007-09-21 Pierre Lareau Motion detector and piglet agitating blower for use in pig farrowing
US20070262859A1 (en) * 2005-04-12 2007-11-15 Marjollaine Henry Birth monitoring system for piglets

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002003881A1 (en) * 2000-07-10 2002-01-17 Stephane Van Den Berge Device for measuring an animal's temperature
WO2006023878A1 (en) * 2004-08-20 2006-03-02 Equividi, Inc. Method and apparatus for animal environmental and health monitoring
US20070262859A1 (en) * 2005-04-12 2007-11-15 Marjollaine Henry Birth monitoring system for piglets
CA2540832A1 (en) * 2006-03-21 2007-09-21 Pierre Lareau Motion detector and piglet agitating blower for use in pig farrowing

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016082815A3 (en) * 2014-11-25 2016-07-21 Leibniz-Institut Für Nutztierbiologie Method for the quantitative prediction of the date of birth of livestock
DE102014017435A1 (en) * 2014-11-25 2016-05-25 FBN - Leibniz-Institut für Nutztierbiologie Method for the qualitative prediction of birth dates in farm animals
US10687927B2 (en) 2015-08-21 2020-06-23 Lely Patent N.V. Method and device to automatically detect calving
WO2017034391A1 (en) * 2015-08-21 2017-03-02 Lely Patent N.V. Method and device to automatically detect calving
NL2015326B1 (en) * 2015-08-21 2017-03-13 Lely Patent Nv Method and device to automatically detect calving.
EP3547828A4 (en) * 2016-12-02 2020-07-01 Jyga Concept Inc. Farrowing system with piglet birth detection and method for operating the same
WO2019057456A1 (en) 2017-09-19 2019-03-28 Norwegian University Of Life Sciences System and method for prediction of farrowing onset
SE1751156A1 (en) * 2017-09-19 2019-03-20 Norwegian Univ Of Life Sciences System and method for prediction of farrowing onset
CN108935137A (en) * 2018-07-16 2018-12-07 华南农业大学 A kind of novel sow welfare intelligence delivery room, colony house and application method
CN112400734A (en) * 2019-08-21 2021-02-26 成都睿畜电子科技有限公司 Sow health monitoring method and monitoring system
CN110537493A (en) * 2019-09-30 2019-12-06 厦门市成翌实业有限公司 method for realizing automatic temperature adjustment of pet house
WO2022172193A1 (en) * 2021-02-15 2022-08-18 Lely Patent N.V. System for monitoring a calving mammal
NL2027558B1 (en) * 2021-02-15 2022-09-13 Lely Patent Nv System for monitoring a calving mammal
NL2027558A (en) * 2021-02-15 2022-09-13 Lely Patent Nv System for monitoring a calving mammal
WO2023095966A1 (en) * 2021-11-29 2023-06-01 주식회사 다모아텍 Fertilizable term determination sensor implantable in body of livestock, and method for determining fertilizable term using sensor

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