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夏俊花 《国外畜牧学(猪与禽)》2019,39(5)
现代母猪的繁殖能力有了显著的提高,由此增加了每头母猪需要哺乳、保育和断奶的仔猪数量,母猪的营养需要量也必须提高,这样才能支持胎儿的生长以及分泌足够的奶水养育哺乳仔猪。作者从多个方面阐述了研究人员对高产母猪在不同繁殖阶段的营养需要和饲喂方案的最新研究成果,以帮助猪营养师和养猪生产者合理管理母猪的营养需要,提高母猪的繁殖性能。本文是《高产母猪饲喂策略最新研究进展》的第三部分,主要介绍母猪围产期、哺乳期的营养需求以及后续管理要点。 相似文献
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表4列出的是妊娠期平均能量值,代谢能需要量随着妊娠天数的增加而提高,妊娠第16周比妊娠第1周的代谢能需要量大约高1.0Mcal。 妊娠母猪的能量需要和采食量除受体重和体况的 相似文献
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1能量及脂肪1.1能量许振英建议,体重120~205kg的妊娠母猪日消化能需要量为16.377~22.642MJ(1992)。NRC标准则为,体重142.5~182.5kg的妊娠母猪日消化能需要量为23.542~27.408MJ(1998)。虽然妊娠... 相似文献
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翁善钢 《国外畜牧学(猪与禽)》2012,32(10):23-25
后备母猪生长期、妊娠期和哺乳期日粮中的矿物元素水平必须得到周密的管理,以便最大限度地促进母猪的健康,提高它们在繁育猪群中的留用率.植酸酶是一种环境友好型高效营养工具,能够更为有效地调控专为提高母猪终生生产性能所设计的营养方案中的日粮养分水平. 相似文献
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在不同的生长繁殖阶段或不同胎次,母猪通常对其饲粮矿物元素水平有特定的需求。鉴于此原因,在母猪的不同繁殖阶段正确进行饲粮矿物元素的补充是至关重要的。 相似文献
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空怀母猪包括后备母猪和断奶后的母猪.将这两个阶段的种猪饲养好,不仅能增强母猪体质,还能增加母猪的产仔数,减少母猪难产和不发情症状,延长母猪的使用时间,提高猪场的经济效益. 相似文献
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母猪在其生产阶段或哺乳阶段,通常对特定矿物质日粮有其特殊需求,因此正确供给矿物质对确保母猪的生产性能非常重要。 相似文献
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《Livestock Production Science》1987,16(1):91-99
Data on the effect of postpartum feeding methods on sow and litter performance and the incidence of lactation failure in the sow are presented. One hundred and sixteen sows were allowed either ad libitum consumption within 16 h postpartum (AL) or restricted to a gradual increase in feed, starting with 0.45 kg on Day 0 and increasing to 0.91 kg each day reaching ad libitum by Day 6 of lactation (R). The AL sows consumed more feed from Day 0 to Day 6 (P<0.01) and during total lactation period (P<0.10) than R sows. Litter performance was not affected by treatment. Loss of sow body weight and condition during lactation and the weaning-to-estrous interval were not affected by treatment. Lactation failure was minimal and not affected by treatment. Rectal temperatures of AL sows were generally higher than R sows, but were not related to incidence of lactation failure. Fecal consistency scores revealed more normal defecations from the AL sows. Neither AL nor R could be identified as the preferred feeding method. 相似文献
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D G Siers M A Schooley L J Brown H C Stanton 《American journal of veterinary research》1977,38(12):1997-1999
Treated sows were on a special management program which consisted of feeding 1,000 mg of dichlorvos to the sow each day for the last 30 days of gestation. The dichlorvos was delivered as a slow-release formulation. The late gestation treatment signigicantly (P less than 0.01) improved the productivity of the sows by improving the performance of their litters. The litters from treated sows were superior in 4 ways: (1) increased number of pigs born alive per litter (2.3%); (2) increased pig birth weights (9.6%); (3) improved survival of pigs born alive; and (4) improved growth rate to market weight. The litters from treated sows were 11.6%, 16.5%, and 12.4% heavier than control litters at birth, weaning (35 days), and market (160 days), respectively. 相似文献