Twenty-four tunnel-ventilated houses, four hundred and eighty thousand places, and a set point of 21.0 °C that the whole margin sits on. Ground Reality records the house before the birds go in, runs the climate round as one form across every shed, and puts a name against a falling static pressure at two in the morning.
The sheet above is a drawing of this. 14 capture waypoints, and every finding called as the aircraft reaches it — scroll sets the target, the mission keeps its own pace, and the page waits for it.
One dawn pass over twenty-four houses: the fan banks staging in sequence, the feed tanker blowing to a gable, the standby set on test — and one house running two degrees hot on band seven, which the unit then walks the alley to measure from the inside.
Once 22,400 birds are placed, nobody opens that door again for six weeks. A pinched drinker line, a cool-cell pad fitted proud or a ridge vent that never sealed is found in week four, by the feed conversion, and by then it has cost a cycle.
Walked before the birds go in
The house is walked end to end before placement and every frame is pinned to its position down the length: pads, inlets, fan shutters, feed and drinker lines all on the record. Week four's question is answered by scrolling the house, not by opening it.
Temperature, static pressure, water meter and mortality get written on a clipboard in each shed, in each grower's handwriting, and typed up on Friday if at all. Comparing house 14 against house 9 means comparing two people's habits.
The climate round, on one form
The round is a structured template — reading, photograph and location on one entry, the same twelve fields in every house — so a drift in one shed is visible against twenty-three others on the day it starts, not at the end of the flock.
A tunnel fan drops a belt at 02:12. The alarm dialler rings a phone that is charging in the kitchen, then the next number on a list that was written when a different person had the job. Twenty minutes without air is a whole house.
Two in the morning, and somebody has to know
The event is raised as an incident against the house it happened in, escalated on a rota that is current, and closed with what was done and when. The 400 kVA standby, the belt change and the air coming back are all on one entry that survives the night.
The program runs on the flock's clock — an empty house before placement, six closed weeks after it, a round every day and a sensor read every five minutes. Once 22,400 birds are in, the record stands in for the door.
InstrumentCadenceOn the record
01
360° house walk
Once a flock, before the birds go in
The house is walked end to end and every frame pins to its position down the length — pads, inlets, fan shutters, feed and drinker lines. Week four's question is answered by scrolling the house, not by opening it.
The roof and gables are read for heat from outside: the R-38 ceiling, fourteen ridge vents shut in tunnel mode, the fan wall. A leak shows as temperature, and nobody enters a placed house to find it.
THERMAL · 3.2CM DETAIL · AT NIGHTTHERMAL · 3.2CM DETAIL · AT NIGHT
03
Climate telemetry
Continuous — eight sensors a house, read every 5 minutes
Eight sensors down the 90 m house hold the gradient: 20.4 °C over the cool cells to 21.7 °C at the fans — 1.3 °C end to end — every reading plotted against the set point and its tolerance.
SENSORS T1–T8 · SET 21.0°C · ΔT ±0.8°CSENSORS T1–T8 · SET 21.0°C · ΔT ±0.8°C
04
Structured round
Every house, every day, on one form
Reading, photograph and location land as one entry, the same twelve fields in every house, so a drift in one shed reads against twenty-three others on the day it starts — not in anyone's handwriting on Friday.
Nobody opens that door for six weeks — how do I know what is inside?
Because it was on the record before the door shut: the house walked end to end before placement, every frame pinned down the 90 m length. A pinched drinker line or a proud cool-cell pad is found by scrolling — not by the feed conversion in week four.
The event is an incident against the house, on a rota that is current. Fan 4 stopped at 02:12 and static fell from 32 Pa to 18 Pa; the duty grower was escalated at 02:13, on the pad by 02:26, and air was back at 21.0 °C by 02:40 — twenty-eight minutes, end to end, on one entry.
02:12→02:40 · 28MIN · ONE ENTRY02:12→02:40 · 28MIN · ONE ENTRY
Q03
How tight is the climate, really?
Set 21.0 °C, tolerance ±0.8 °C, read every five minutes on eight sensors down the house. House 14 runs 20.4 °C at the pads to 21.7 °C at the fans — 1.3 °C across 90 metres, inside tolerance the whole length.
On the same form. The round is the same twelve fields in every house — reading, photograph, location — so a drift in one shed reads against twenty-three others the day it starts, not against two growers' habits at the end of the flock.
HOUSES 24 · FIELDS 12 · ONE FORMHOUSES 24 · FIELDS 12 · ONE FORM
Q05
Does the standby actually carry the house?
The 400 kVA set transfers in 8 seconds and holds six tunnel fans at 42,000 m³/h each. The night it mattered is on the record: belt on and standby held by 02:26, air back at set by 02:40, flock 118 intact.
The flock's record: the pre-placement walk, the climate held to ±0.8 °C of set on five-minute reads, every round and every incident closed with what was done and when. Day 34 of flock 118 reads the same on the record as it did in the house.
FLOCK 118 · DAY 34 · 5MIN READSFLOCK 118 · DAY 34 · 5MIN READS
BRIEFS 3 · PROFILES 27 · RECORD CLOSED 02:00BRIEFS 3 · PROFILES 27 · RECORD CLOSED 02:00
Who reads it
Read overnight on a group like this one: five-minute sensor reads across 24 houses, the day's rounds on one form, an incident raised and closed in the dark, and the walk record standing in for every shut door. Three of the 27 profiles wake up to it.
House 14 held through the night: fan 4 dropped its belt at 02:12, belt on and standby held by 02:26, air back at 21.0 °C by 02:40. This morning's gradient reads 20.4 to 21.7 down the house — inside ±0.8 the whole length.
CITES: INCIDENT 02:12 · SENSORS T1–T8 · SET 21.0°C
Farm manager
PROFILE 12 / 27
06:15 · GROUP · 24 HOUSES
TREND
Twenty-three houses sit on set, and house 14's round carries the night: escalated 02:13, closed 02:40, with what was done and when. The next empty house gets its walk before the birds go in.
CITES: ROUNDS 24 · INCIDENT H14 · WALK RECORD
Veterinarian
PROFILE 26 / 27
07:20 · FLOCK 118 · DAY 34
FLOCK
Flock 118 came through intact: T7 peaked at 23.1 °C — 2.1 over set — and the house was back at 21.0 °C nineteen minutes after that reading. The mortality field on today's round closes the question in the record, not in week four's feed conversion.
CITES: T7 02:21 · ROUND H14 · FLOCK 118
SHEET · 4 OF 48 · POULTRY FARMSSHEET · 4 OF 48 · POULTRY FARMS
Send us the shed schedule — we will walk the next empty house before placement and hand you one night's climate, read every five minutes, on the record.