奶牛 - 增加动物健康的营养

天然沸石日粮对牛健康和生产性能的影响

斜发沸石 沸石 饲料添加剂

牛 奶牛

天然沸石日粮对牛健康和生产性能的影响

研究发现天然沸石对牛和小牛的许多益处

 

在谷仓和畜棚中,“恶臭的气体会附着在带有正分子电荷的尘埃颗粒上。沸石分子具有负分子电荷,因此它们像磁铁一样吸引灰尘颗粒,从而有助于清除空气中的异味和灰尘”(Hill,2012 年,第 46 页)。培训师发现,在摊位附近放置一个顶部开口的沸石容器有助于吸收空气中的异味和灰尘(Hill,2012 年)。

科学界发表的大量文献表明,在饲料中添加天然沸石(例如斜发沸石)可促进牲畜的生产性能和整体健康。

Significant benefits include decreases in the severity and duration of diarrhea and reduction in intestinal disturbances (Papaioannou et al., 2005). This benefit is attributed to zeolite’s water adsorption properties, which results in drier and more compact feces. Also, study findings indicate that zeolite promotes blood serum antibodies that fight against E. coli and toxic effects of mycotoxins in blood streams.THE BODY OF LITERATURE PRODUCED BY THE SCIENTIFIC COMMUNITY SUGGESTS THAT SUPPLEMENTING FEED WITH NATURAL ZEOLITE, SUCH AS CLINOPTILOLITE, PROMOTES PERFORMANCE AND OVERALL HEALTH IN LIVESTOCK.To examine the effect of natural zeolite on young calves, Mumpton (1985) studied a group of heifers fed a diet of grass and hay. During this 180-day trial, half of the group (experiment group) received a supplement of 5 percent clinoptilolite zeolite. Mumpton found that the experiment group gained 20 percent more weight than the other animals. Although the calves in the experiment group did consume more feed, the feeding cost per kilogram of weight gained were less than for animals on a regular diet (Mumpton, 1985). Calves in the experiment group also experienced a reduced rate of diarrhea and soft feces. Excrement also contained fewer particles of undigested solids.

A study by Mohir et al. (2008) examine how the use of natural and 合成沸石 in animal nutrition increases health, performance, and protects against mycotoxins. A group of thirty calves were divided into three groups, two of which received feed supplemented with clinoptilolite zeolite. Blood samples from all groups were collected over a period of 42 days and scientist measured the total protein, albumin, beta and gamma globulin. The results indicated that clinoptilolite supplements had significant positive effect on the values of hematocrit, red cell count, hemoglobin, and albumin.Pourliotis et al. (2012) examined the effects of clinoptilolite zeolite on incidences of diarrhea and blood serum antibody levels that fight E. coli. A group of 84 Holstein calves were divided into three groups and fed a diet of colostrum and milk; two groups also received 斜发沸石 supplementation at a rate of 1 g/kg BW/d and 2 g/kg BW/d. All calves were monitored daily for diarrhea, and antibody levels against E. coli were measured in blood serum at birth, 12, 24, and 48 hours after calving (Pourliotis et al., 2012). The results indicated that calves fed zeolite had higher levels of blood serum antibodies and reduced incidences of diarrhea. The study demonstrated that clinoptilolite zeolite can enhance intestinal absorption of antibodies and remove excess liquids from feces.

天然沸石与牛奶热和酮症的预防

Papaioannou 等人的研究 (2005) 研究了天然和合成沸石在预防牛奶热中的潜在用途,牛奶热是在接近产犊的奶牛中发现的一种疾病。这种疾病与低血钙水平引起的代谢疾病有关。先前的证据表明,在干奶期通过低钙饮食可以预防牛奶热(Papaioannou 等,2005)。该研究的目的是通过给予沸石来降低胃肠道中膳食钙的生物利用度。结果表明,在干奶期的最后一个月和哺乳期开始时,将沸石作为口服液或饲料补充剂给药,实际上确实降低了钙的生物利用度并预防了疾病;喂食添加了 2.5 水平斜发沸石的饲料的奶牛不太容易患牛奶热。此外,接受斜发沸石的动物对产犊当天观察到的血清钙下降反应更快,更有效,并且在接下来的几天中没有表现出任何牛奶热的迹象(Papaioannou 等,2005)。

另一种在奶牛群中常见的酮症疾病是一种代谢紊乱,当能量需求(如产奶量)超过能量摄入并导致能量负平衡时发生。酮症的副作用之一是低血糖浓度。研究表明,预防奶牛酮症的最佳策略是提高干奶期和哺乳期的能量吸收(Papaioannou 等,2005)。 Katsoulos 等人的一项研究。 (2006) 发现,在奶牛的饮食中添加 2.5% 的斜发沸石可显着降低分娩后第一个月内酮症 (5.9%) 的发生率。结果表明,斜发沸石改善了奶牛的能量状态,部分原因在于消化和瘤胃后淀粉消化的改善(Katsoulos 等,2006)。

天然沸石日粮对反刍动物健康的影响

Papaioannou 等人的研究。 (2005) 和 Mumpton (1985) 研究了如何通过在饲料中添加斜发沸石补充剂来防止反刍动物(例如牛、绵羊、山羊)中瘤胃 pH 值、铵和氨的毒性水平的影响。研究人员发现,5% 至 6% 的补充水平可将瘤胃中的铵浓度降低 15%。本质上,铵会立即保持在沸石结构中,直到在补料后发酵期间钠进入瘤胃。这一过程使瘤胃微生物易于同化到消化系统中,并保护动物免受其系统中有毒水平的氨的积累。

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