Division of each stage and feed consumption of large-scale pig raising

The level of feed nutrition has played a key role in promoting the entire animal husbandry industry to maximize the production potential of feeding animals. in the process of transformation from traditional extensive and household feeding to modern intensive and large-scale feeding, the proportion of feed costs has increased, and large-scale pig farms are generally 65% and 80%. However, due to the astonishing waste of feed caused by the management, design, construction, purchase, use of facilities and equipment and man-made feed in pig farms, especially in determining the division of pig stages, changing formula feed in different periods, and feeding staff according to pig breeds and development stages, it has become an important management measure for large-scale pig farms to reduce intangible feed waste and unreasonable use of feed. I have been engaged in pig production for many years and visited thousands of pig farms. I feel that it is necessary to regulate this problem so that pig farms can obtain better economic and social benefits by reducing feed use. There are two indexes for the division of each stage and feed consumption of a boar, namely, health, clear consanguinity, conforming to the characteristics of this breed, (1) 10 months old before mating, and (2) weight 110-125 kg / head. The amount of material used is 876 kg / head in the whole year. The annual material quantity can be adjusted according to the season. (2) there are two indexes for the division of each stage and the usage period of reserve pigs: healthy, clear consanguinity, in accordance with the characteristics of this breed and immunized before mating (1) sows: 110-240 days old, boars: 110-300 days old; (2) body weight: 100-110 kg for sows and 110-125 kg for boars. Feed consumption: 250 kg for sows and 310 kg for boars. (3) the sows were divided into different stages and feed consumption. The whole period of sows was calculated according to 168days, and the feed consumption was 995.70 kg per litter in the whole year. The whole breeding period of sows is divided into three stages: empty pregnancy and lactation. 3.1 the empty period is 26 days, that is, from the end of lactating sows to the stage of estrus. Under normal circumstances, sows can be in estrus 4-7 days after weaning, and the lactation period of sows is postponed or unmatched due to physical condition, lactation ability, environmental conditions and so on. The daily volume of this period is 2.10 kg, 50.40 kg. 3.2 the pregnancy period is 114 days, that is, the whole pregnancy period. The feed consumption in the whole period is 262.20 kg per head, which can be divided into three stages of feeding and management. The feed consumption is determined according to the development of fetus in the womb of sows and the requirements of sows themselves. The average daily dosage was 2.30 kg / head. (4) the stages of piglets and feed consumption were divided into two stages: lactation and conservation. The amount of material used is 35,40kg / head. 4.1 Suckling piglets during the period from birth to weaning, the scale of the pig farm is generally 21-35 days. Now take 28-day weaning as an example, the feed consumption is 1.00-3.50 kg. Liquid feed was the best feed for suckling piglets, followed by pellet feed, followed by powder feed. The use of granular feed is more common in large-scale pig farms due to many conditions, such as equipment and facilities, feeding quantity, staff quality, labor quantity and so on. In terms of large-scale pig farms in the three northeastern provinces, suckling piglets are astonishingly wasted in feeding, and the real feed intake of suckling piglets is very small, even less for bulk farmers. The main reasons are feed quality, environmental conditions, feeding trough and feeding, which are also important causes of negative growth and diarrhea of weaned piglets. 4.2 Piglet care refers to the piglets that are weaned to the growth and fattening stage. Feeding stage: 28-70 days old, body weight stage: 8-30 kg / head. It is not only the most important stage in pig life, but also an important period of immune prevention. At present, some pig farms do not pay attention to all aspects of this stage: 4.2.1 environmental conditions: the best suitable temperature is 22: 28 ℃. But the temperature in some pig farms is only 10: 18 ℃, and some are even lower than 10 ℃; the best suitable relative humidity is 65%-80%; good ventilation and suitable light. 4.2.2 the selection of poor quality and cheap feed 4.2.3 the selection and use of feed is not in line with the actual stage. The sales staff of a small number of feed enterprises have made a mistake in order to accept the feed sold in pig farms, resulting in slow growth, diarrhea and other related problems. 5 growth and fattening period: divided into two stages: growing period and fattening period 5.1 growing pigs refer to fattening pigs from the end of the maintenance period to about 50 kg. During the period of 70-110 days old, the feed consumption was 45kg / head. 5.2 fattening pigs refer to the fattening pigs from the end of the growing period to the stage of listing. The weight is 50kg to 130kg, and the feed consumption is 165kg / head during the period of 70kg to 110d. The specific instructions in the table are as follows: 1 all materials refer to full price feed 2, high quality crude fiber feed can be properly added to pig feed to satisfy satiety and future pregnancy needs 3 male pigs should have animal protein ingredients in suckling piglet feed 4 it is recommended to use high grade full price grain feed. Ensure eating at the age of 7-14 days. 5 this stage is divided into general division and mid-range indicators-well summed up and collected. Thank you-- agree with the upstairs point of view. Good. Absorb-- Thank you for sharing such a good collection of information thank you-- Thank you for your kind post [ts] zhangting_1110 at 13:46 in 2009-11-9 add the following content [/ ts] very well Thank you-- very detailed, good information. Identification complete! -- ask a question Why not use the scale?-- it's a good summary-- different varieties, environment, level of management. Material composition design shadow usage and usage time and even mother have different requirements in different fetuses-copy first In the paste, ~-- very detailed, good information. Identification complete! Xu Yunjie 2008 added the following very detailed and good information at 13:23 on 2009-11-26. Identification complete! The empty period of 26 days is wrong. Is it too much? How do you calculate it? write it out and bask in it. I think it should be 7: 21 * (1-85%) = 10.15 days.