 Wysłany: Wto 9:40, 02 Lis 2010 Temat postu: ugg australia boots Pregnant sows fed excess level |
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| Lead to excess feeding of pregnant sows decreased the level of production
Stage of pregnancy feeding sows lactating sows on the management level,ugg australia boots, newborn piglets, weaned piglets and sows the continuity of production capacity will pose a great impact; reproductive stage is the key to feeding and management, \adequate intake. \Severely restricted feeding of pregnant sows is also aimed to increase sow feed intake during lactation, lactation day to achieve the total consumption of milk basic nutritional needs. The following are often error-prone farms the details: 1, weaning - breeding: There are many farms that weaning to breeding only the short time of 3-7 days,cheap mac eyeshadow, it does not matter what I feed material, into breeding homes began to use pregnancy sow feed. However, many experiments show that although a very short time before mating, but the use of low energy (low linoleic acid content) of low protein feeding of pregnant sows affects ovulation sows, litter size is one of the reasons for the decline, if the sow herd partial This effect will be more lean. 2, a week after mating must be strictly restricted feeding,moncler jackets sale, because the breeding is 48-72 hours after the implantation of fertilized egg stage to the uterus,moncler jackets sale, if the feed was too high, too high on energy consumption will lead to increased embryonic death, so that litter size decline; sows fed more likely to occur when the slim over the issue. If the sow herd slim 7-37 days of pregnancy can adjust the feeding amount of the adjustment range 0.6-0.9 kg / day, at this stage that enables rapid recovery of sow body condition, and will not result in lactating sows mining the problem of declining food intake. 3, restricted feeding of pregnant sows Time: Europe, America and most of the farms will be restricted feeding to the first 95-100 days of pregnancy, and then feed into the later stages of pregnancy, has been in use in China, keeping the old way of feeding 84 days of gestation. University of Kansas swine nutrition group research has confirmed that feeding pregnant sows too early (84 days) will lead to reduce the number of lactating sow mammary gland cells by RNA detected 100 days of feeding pregnant sows, the parent than the 84 days feeding pig total RNA was significantly higher; so early breast feeding may affect the development of the sow, which is caused by the sow milk yield and weaning weight important reason for the small. 4, late pregnant sows kept inaccurate, resulting in birth weight is small: we all know that this stage is very important, but the actual breeding process in the most vulnerable to two errors, one feeding quantity less than the second is the use of pregnant mother Hog feeding. Feeding mainly because of lack of early feeding (84 days) average of 3 kg / day, 100 days of pregnancy before the fetus is also to meet the basic nutritional needs of weight gain, enter the fast growing period of 100 days after the piglets are still feeding 3 kg per day, not changes in forage species continue to use the material feeding pregnant sows, it is difficult to meet the nutritional needs of fast-growing fetus. The correct approach is best to start feeding 95 days, the best grease to use plus or \to 3150 kcal / kg or more, 17.5% crude protein and lysine content of not less than 0.86%. If you do not add oil or fat powder, metabolic energy is difficult to achieve 3150 kcal / kg or more, so lean in lactating sows compound must be added fat, especially rich in linoleic acid (short chain fatty acids). High in saturated fatty acids (long chain fatty acids) sows difficult to use, as will a large number of sows during late pregnancy in both short-chain fatty acids into ketone bodies, and ketones in piglets will be quickly converted into fat reserves, and high-fat reserves improve the survival rate of piglets have a very positive effect. If you use the 95 days start feeding, feeding quantity must be controlled precisely. In order to effectively prevent dystocia, primiparous swine feeding quantity is best controlled at 3 kg / day; 2 or more sows producing not less than 3.5 kg / day; feeding time 95-112 days, pre-cut material for 2 days. More articles related to topics： moncler jackets sale Henan Environmental Protectio tory burch shoes Are you into the pig errors ugg boots deutschland Resist feeding sows Causes a |
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