Analysis of Causes of Female Birth
100% Organic Fertilizer,Water Soluble Organic Fertilizer,Npk Organic Fertilizer,Organic Fertilizer For Agriculture Zhengzhou Bridge Biochem Co.,Ltd. , https://www.biochemfeeds.com
Stillbirth and abortion in rabbits can be caused by a variety of factors, including nutritional deficiencies, toxic exposure, mechanical trauma, and underlying diseases. Understanding these causes is essential for preventing losses in rabbit breeding.
Nutritional deficiencies are a major cause of stillbirth and miscarriage. If the diet lacks essential nutrients such as protein, minerals (like calcium, phosphorus, selenium, zinc, copper, and iron), or vitamins—especially vitamin A and E—it can lead to developmental issues in the fetus. A deficiency in carotene and vitamin E can impair placental function, causing fetal membranes to detach and leading to stillbirths. Vitamin A deficiency may result in keratinization of the uterine lining, which weakens the connection between the mother and the fetus. In cases of vitamin E deficiency, embryos may die early and be reabsorbed, a process known as "debridement." Late pregnancy deficiencies can also lead to premature birth.
Mineral imbalances, such as low calcium or phosphorus levels, can hinder fetal development, resulting in weak, deformed, or stillborn kits. Sudden changes in feed during pregnancy can also disrupt nutrient absorption, increasing the risk of stillbirth and miscarriage.
Toxic causes include feeding moldy, spoiled, or contaminated feed, which can poison the rabbit and interfere with fetal development. Feeds containing pesticides, bitter or spicy substances, or high acidity can lead to digestive problems and ultimately cause stillbirth. Medications such as strong laxatives, diuretics, or uterine stimulants can also trigger miscarriage if given during pregnancy. Vaccinations, while important, can act as a stressor and sometimes lead to spontaneous abortion in pregnant does.
Mechanical factors can also cause stillbirth. Improper handling, such as rough palpation or incorrect pregnancy diagnosis, may damage the embryos. Plucking fur after pregnancy can disturb the developing fetus, and improper handling, such as catching or moving the rabbit roughly, can cause stress and lead to miscarriage. Free-range rabbits that become overly frightened may run, hide, or collide, potentially injuring the fetus. Excessive noise, the presence of predators, or aggressive behavior among rabbits can also trigger stillbirths.
Environmental hazards like sharp edges on feeders, uneven cage grids, or damp floors can cause injuries, infections, or other complications that may lead to miscarriage. Poor ventilation and accumulation of harmful gases can further harm the health of pregnant rabbits.
Diseases such as viral infections (e.g., flu, pasteurellosis, encephalitis), bacterial infections (e.g., colibacillosis, enteritis), and parasitic infestations can all contribute to stillbirths. Reproductive tract diseases like syphilis, metritis, or vaginitis can prevent successful mating or lead to embryonic death. Inbreeding can also increase the likelihood of genetic defects, resulting in weak or malformed fetuses.
Preventing stillbirth and abortion requires careful attention to nutrition, environmental conditions, handling practices, and overall health management. Regular monitoring, proper feeding, and minimizing stress are key strategies for maintaining healthy pregnancies in rabbits.
1. Organic fertilizers are fertilizers that are naturally produced.
[1] Fertilizers are materials that can be added to soil or plants, in order to provide nutrients and sustain growth. Typical organic fertilizers include all animal waste including meat processing waste, manure, slurry, and guano; plus plant based fertilizers such as compost; and biosolids.
[2] Inorganic "organic fertilizers" include minerals and ash. Organic refers to the Principles of Organic Agriculture, which determines whether a fertilizer can be used for commercial organic agriculture, not whether the fertilizer consists of organic compounds.
2. Farming application：
[1] Plant:Processed organic fertilizers include compost, liquid plant manures, humic acid, grain meal, amino acids, and seaweed extracts. Other examples are natural enzyme-digested proteins. Decomposing crop residue (green manure) from prior years is another source of fertility.
[2] Compost provides little in the means of nutrients to plants, but it does provide soil stability through increasing organic matter. Compost does help microorganisms proliferate which in turn breaks down decaying plant material into substantial bio-available nutrients for plant to easily assimilate. Compost does not need to be fully plant-based: it is often made with a mix of carbon-rich plant waste and nitrogen-rich animal waste including human excreta as a means to remove pathogens and odor from the latter.
[3] Grain meals can be made of corn gluten, alfalfa, cottonseed, or soybean. Most supply nitrogen and potassium, but soybean meal provides nitrogen and phosphorus.When initially spread they can cause an increase in ammonia within the soil and burn seeds, it is recommended to use these after plants have developed, to ensure crop success.
[4] Other ARS studies have found that algae used to capture nitrogen and phosphorus runoff from agricultural fields can not only prevent water contamination of these nutrients, but also can be used as an organic fertilizer. ARS scientists originally developed the "algal turf scrubber" to reduce nutrient runoff and increase quality of water flowing into streams, rivers, and lakes. They found that this nutrient-rich algae, once dried, can be applied to cucumber and corn seedlings and result in growth comparable to that seen using synthetic fertilizers
[5] Ash produced by plant combustion is also an important K fertilizer.
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