Chicken- Sussex, Turkey- Bourbon Red, Duck- Mandarin, Goose- Buff, Quail-Red Breasted Button
Male- ChickenRooster-Mature intact
Cockerel- Immature intact Capon- Castrated Male- TurkeyTom- Intact
Male- DuckDrake- Intact
Male- GeeseGander- Intact
Male- QuailCock- Intact
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Female- ChickenHen- Mature Intact
Pullet- Immature intact Female- TurkeyHen- Intact
Female- DuckDuck- Intact
Female- GeeseGoose- Intact
Female- QuailHen- Intact
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Baby- ChickenChick- Very young chicken
Poult- Young chicken Clutch- Group of eggs Baby- TurkeyPoult- Young turkey
Baby- DuckDuckling- Young duck
Baby- GeeseGosling- Young goose
Baby- QuailChick- Young quail
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Reproduction - Hen
- The start of sexual behavior is greatly affected by the environment, especially feeding, lighting regime and genetic strain.
- In the wild and in free-range systems, young females (pullets) show mating behaviour as early as 18 weeks of age, but this varies greatly.
- Most hens, regardless of breed, start to show mating behaviour 4-8 days before the start of the new laying season - whether there is a male present of not.
- The egg laying behaviour of hens is very elaborate, and selection of a nest is done with great care, often in association with the male.
- Studies have shown that nesting activity and ovulation are linked so a good nest favours high production.
- Nesting is characterised by secrecy and careful concealment, and nest selection has four phases.
- First - seeking a place to lay. This can be very protracted as the hen becomes restless, paces about giving the pre-laying call and showing characteristically body postures. In a deep litter laying house, she examines the walls and corners.
- Second - inspection of a number of possible sites between feeding, preening or sleeping, and finally pushing into one of them. Inside she continues her examination, lifting her legs with care with her neck horizontal.
- Third - settling, squatting, making a nest hole by crouching and rotating several times using her keel bone to shape the nest. Then she sits and lays, often standing to expel the egg.
- Fourth - after laying she may continue to examine the egg with her beak then rises and returns to the flock cackling.
- In the limited space of a cage, the hen adopts the same behavioural sequences but obviously their expression has to be modified.
- In a multiple-bird cage, which most commercial ones are, the hen about to lay searches the cage pushing other hens away. She may creep between the legs of other hens, sometimes 100 times before she settles.
- She spends laying time putting her head between the wires, pushing and often being pecked by birds in the next cage.
- Intentional movements to try to fly may be shown by tail extended and wings slightly raised. She may even try to climb the cage.
- Then suddenly she squats and lays. Her breathing rate is high and her calls are generally weak. Eggs are often laid in the same area of the cage before they roll away.
- Caged hens paces to fill up the time normally spent in the pre-laying behaviour seen in free-range birds. Pacing varies between strains from 100-2600 paces before laying.
- Birds have been recorded as spending 55% of their time resting, 21% eating, 17% laying and 7% drinking.
- In the wild Jungle fowl, nesting is mainly on the ground in a bamboo habitat with semi darkness and shadow patterns.
- In domestic fowls, we want them to nest in boxes off the ground to keep eggs clean, but which still mimic their natural preferences.
- Generally one nest is needed for every four birds. Nests should be clean, and have ample litter such as straw (a favourite), shavings, sawdust, wood fibre, and so on. The key is to stop birds sleeping in the nest boxes or using them as roosts.
- The box should be large enough for the bird to turn round.
- Studies have shown a bird preference for a triangle-shaped entrance, and some for a square one. Boxes are best sited 450-500 mm above the ground litter.
- Leaving dummy eggs in the nest is an old trick to encourage hens to lay, but the hen is probably more attracted to the nest litter than the eggs.
- Some systems use communal nests of 60 x 200 cm that can accommodate 50 birds.
- Hens have been identified as those that prefer solitary nests, and others that prefer communal nests. Communal nests have more behavioural problems caused by shy birds not wanting to use them, and birds crowding inside them and keeping others out.
- Breeders use trap nests where the bird triggers a slide with her tail, and has to be let out manually after recording her Identification number with her egg
- Males normally reach sexual maturity between 12-16 weeks old. This varies with management system and genetics, with the feeding and lighting regime having a major effect.
- Crowing by the male increases greatly between 24 and 68 weeks. Crowing is not related to the male's sex drive or ability to mate, but it does indicate a cock's general vigour of pre-mating courtship, and appears to be related more to aggression than fertility.
- Scoring males for sexual activity by counting the number of mounts in a given period does not appear to be very useful.
- Hatchability percentage and male mating ability can be used to measure commercial success in hatcheries and these traits are critical in profit. Hatchability has varied from 0-74% in some studies.
- Males have a very elaborate courting ritual. It has not changed from its Jungle Fowl ancestors.
- The cock approaches the hen that either runs, side-steps or crouches.
- This stimulates the male to waltz, trailing a wing before mounting.
- During mounting the cock treads with his feet on the hen's back.
- Then their vents (cloacas) come in contact and the male ejaculates.
- The cock steps off, may court again or stands, shakes himself and may run off.
- Previous mating experience by the male is important.
- Heavy-breed males court less and have fewer matings than light-breed males, but the heavies have higher sperm numbers.
- Females crouched more often for young males which did more mating than older males.
- High social-rank males initially mate more hens than low-ranked males, the advantage is short lived.
- In controlled environments, more matings occur 15 hours after lights on which means a peak (80%) between 4pm and 6pm depending on the lighting regime.
- Male/female ratios of 1:5, 1:10; 1:12, or 3:40 were equally successful.
- Changes in light pattern increase or stimulate male sperm production, though normal semen production occurs with standard light levels.
- Depriving males of water for 48 hours will reduce semen production for up to 6 weeks.
- High levels of iodine (5000 ppm) and mouldy feeds reduce sperm quality.
- Sperm production is improved in low temperatures.
- In sexually active males, massage will not produce semen as it will in low-activity cocks.
- Males will mate from 1 to 53 times a day.
- Males kept together will mount (tread) each other.
- Courtship. Caged males spend more time waltzing than colony males, the latter moving up on hens from the rear rather than the side.
- Males in floor pens did more fighting, courting and mating than those in colony cages. Females avoided males more in the floor pens.
- Bouncing insecure floors upset males more than rigid floors.
- This is a castrated male.
- Castration can be done surgically, removing the testicle through an incision in the body wall.
- It is also done by using oestrogenic hormone implants, if the market allows this practice. This will stop testicle, comb, and wattle growth.
- There is no need for this practice today as modern meat chickens grow at such a rate that castration produces no extra advantage.
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