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If the pen is not clean and the pigs are dirty, will it affect the pigs' health?
If the pen is not clean and the pigs are very dirty, will it affect the pigs' health?
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What factors affect the egg-laying rate of laying ducks?
Factors affecting the egg-laying rate of laying ducks
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What factors affect the number of piglets a sow farrows
What factors affect the number of piglets a sow farrows
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What are the factors affecting beef cattle feed utilization?
Factors affecting beef cattle feed utilization
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Fish feeding is affected by 6 situations, and farmers need to pay attention
In the process of intensive aquaculture production, the management of feed feeding is one of the main links in the entire production management, and during the feed feeding process, the phenomenon of reduced feed intake by fish often occurs. Based on different situations in production, the author analyzes the reasons for reduced feed intake by farmed fish as follows: The first situation: fish are suffering from disease, causing reduced feed intake by fish. For example, when crucian carp inner spore disease, grass carp three diseases, channel catfish hemorrhage disease, enteritis and other diseases occur, the feed intake of fish is significantly reduced. When grass carp fingerlings and crucian carp have large numbers of wheel
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How are affected pigs identified? The Ministry of Agriculture publishes the criteria
Recently, the Veterinary Bureau of the Ministry of Agriculture and the China Institute of Veterinary Drug Control jointly compiled and issued the "Safe Use Manual for Inactivated Vaccine against Highly Pathogenic Porcine Reproductive and Respiratory Syndrome," publishing the quality standards for the inactivated vaccine against porcine reproductive and respiratory syndrome, and also publishing the criteria for identifying affected pigs. The manual stipulates that the criteria for identifying affected pigs are: a body temperature above 41°C for at least 3 days; decreased spirit and appetite, conjunctivitis, and respiratory symptoms such as coughing and wheezing; and on gross necropsy, patchy consolidation appearing in the apical or cardiac lobe of the lungs. Meeting the above three criteria means
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How 5 Trace Elements Affect Egg Quality
Egg quality includes external qualities such as egg weight, eggshell quality, eggshell color, and egg shape index, as well as internal qualities such as albumen height, yolk color, yolk membrane strength, chemical composition, functional properties, blood spots and meat spots, and flavor. The egg qualities of greatest concern to producers and consumers are egg weight, eggshell quality, yolk color, and functional properties. 1. Effects of zinc and manganese on egg quality. There are few reports on studies of zinc used alone in laying hen feeding. Research by Wedekind (1990, 1992) showed that amino acid
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How Fish Bone Structure Affects Boneless Fillet Processing Technology
Different fish species have different fish bone structures, which directly affect the thawing, deboning, and filleting processes in boneless fillet processing. This article classifies various fish in actual production according to fish bone structure, and discusses the optimal deboning, filleting, and thawing processes for each type of fish, providing reference for actual production. I. Classification of Fish Bone Structure 1. Vertebral spine type (1) Fish with longitudinal fish bones connected to the spine: This type accounts for the majority, and currently common ones in aquatic product production and processing include redfish, flounder, red drum, tilapia
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High temperatures trigger heat stress in pigs, affecting their physical health
The high-temperature environment from June to September each year disrupts pigs' sex hormone secretion, throwing their normal estrus mechanism out of order, so that estrus symptoms become inconspicuous or the animals do not come into heat at all; high temperatures make pigs devote most of their energy to resisting heat stress, correspondingly weakening their other bodily functions, and for lactating sows and fattening pigs that need to eat large amounts of feed, this leads to insufficient nutrition and the phenomena of low milk output and slow growth; high temperatures make heat dissipation from the boar's testicles difficult, intensify sperm metabolism and shorten sperm lifespan, so that the motility of ejaculated sperm decreases or the sperm even die; high temperatures also increase the death of newly fertilized eggs and make implantation of the fertilized eggs more difficult, thereby lowering the conception rate of summer breeding.
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Chicken diseases affect weight gain and egg production, folk remedies to help you
Chicken diseases affect weight gain and egg production, chicken raising requires disease prevention, folk remedies to help you
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