Numbered Publications: ASC
ASC-232: Raising Replacement Pullets for Small-Scale Egg Production
Jacquie Jacob, Tony Pescatore | Oct. 27, 2022 (Minor Revision)
Poultry producers who raise their own replacement pullets have better control over the growth, condition, and development of the flock. The quality of the pullet flock will have a direct effect on the subsequent level of egg production. The two most important quality factors for a replacement flock are proper body weight and uniformity. Pullet weight at 6 weeks of age has been shown to influence subsequent egg production. Once the pullets start to lay, it is too late to solve problems from poor nutrition or management during the pullet rearing period.
ASC-248: Vitamin Supplementation for Beef Cattle
Les Anderson, Darrh Bullock, Kevin Laurent, Jeff Lehmkuhler, Katherine VanValin | Jul. 18, 2022 (New)
Beef cattle have defined requirements for vitamins. In some instances, vitamin supplementation may be necessary to avoid deficiencies. Vitamins are classified into two categories: water-soluble and fat-soluble. Water-soluble vitamins include the B vitamins, such as riboflavin, thiamin, and niacin, as well as vitamin C. Fat-soluble vitamins include vitamins A, D, E, and K. Supplementation for beef cattle generally focuses on vitamins A and E. This is because the rumen microbes synthesize the water-soluble vitamins and vitamin K in sufficient quantities to avoid deficiencies. Vitamin D requirements can often be met by exposure to the sun and would therefore only be of concern for cattle in confinement housing.
ASC-249: Reading the Fine Print: Understanding Mineral Tags
Jeff Lehmkuhler, Katherine VanValin | Jul. 18, 2022 (New)
Among the variety of supplementation options currently available for beef cattle operations, a mineral can be one of the most challenging to select. Mineral tags contain important information regarding the contents of a mineral supplement and are regulated by the Association of American Feed Control Officials (AAFCO). Understanding the information on a mineral tag will aid in the comparison of multiple products and help to ensure the selected mineral product will meet the needs of specific animals.
ASC-247: Broodiness in Chickens
Jacquie Jacob, Tony Pescatore | Aug. 2, 2021 (New)
Broodiness is the term used to describe a hen that is preparing to naturally incubate eggs and raise newly hatched chicks. When broodiness occurs in a hen certain behavioral changes may be evident. These changes include increasing the time spent in the nest, being overly protective of the eggs and nest, changes in the consumption of feed and water, and the stopping of egg production.
ASC-246: Properly Maintaining a Backyard Poultry Facility
Jacquie Jacob, Tony Pescatore | Aug. 2, 2021 (New)
It is important that you properly maintain the poultry facility so that you do not attract rodents, flies, or create an odor problem. These are the three main reasons that non-poultry enthusiasts give for not wanting backyard flocks in their communities and neighborhood.
ASC-169: Beef Sire Selection Manual, 2021
Darrh Bullock | Apr. 1, 2021 (Major Revision)
In principle, genetic improvement is a straight-forward exercise that results from using above-average selection candidates as the parents of the next generation. In practice, the devil is in the details. Both bull breeders and bull buyers need to consider their breeding objectives, defining the list of traits that need to be modified to advance the towards their goal.
ASC-245: Feeding Soybeans to Beef Cattle
Jeff Lehmkuhler, Katherine VanValin | Mar. 24, 2021 (New)
Various factors such as delayed planting, early frost, drought or suppressed market prices may lead one to consider feeding soybeans to cattle. Soybeans can be fed to beef cattle as an energy and protein source. Depending upon the stage of development, soybeans will have varying degrees of feed value and a feed test for nutrient content is recommended.
ASC-244: Feeding Distillery Stillage to Beef Cattle
Les Anderson, Darrh Bullock, Kevin Laurent, Jeff Lehmkuhler | Jun. 1, 2020 (New)
The growth of the bourbon industry has provided an increase in distillery byproduct feedstuffs that can be utilized by cattle as a source of energy and protein. Learning the nutritional characteristics of these feedstuffs will facilitate proper feeding, allowing for improved cattle performance.
ASC-243: Managing Dry, Open Ewes
Debra Aaron, Don Ely | Jul. 25, 2019 (New)
Ewes on vacation should remain healthy, but not become obese. Keeping them in a BCS of 1.5 to 2.0 will not be an easy chore because all they have to do is graze and deposit body fat. Limiting forage dry matter consumption to 2.0% of body weight daily through stocking rate management and rotational grazing is the best way to keep ewes from becoming excessively fat. If ewes have an optimum BCS at the beginning of nutritional flushing, and are flushed correctly, 95 to 98% of the ewes will conceive in a short period of the breeding season and lambing rate can be increased by 15 to 20% above that of less intensely managed ewes.
ASC-242: Composting Poultry Litter in Your Backyard
Jacquie Jacob, Tony Pescatore | May. 2, 2019 (New)
Keeping laying hens in the backyard is popular, but along with a daily supply of eggs, the hens also produce a large supply of manure. Fresh poultry manure has an unpleasant odor and will attract flies. Bedding material, such as pine shavings, is put down on the coop floor to help control odors and flies, but eventually the litter (manure and bedding material) needs to be replaced. While poultry manure can be an excellent fertilizer, it should not be used fresh. "Raw" manure can burn plants and may contain pathogens that could contaminate any plants being grown for consumption. Composting makes the manure safe to use as a fertilizer on any lawn or garden. Composting involves a process by which billions of beneficial soil organisms decompose the organic material. Simply piling up waste is not really composting. With the right proportions for materials, the process has minimal offensive odor and destroys most of the pathogens in the manure. Compost is both science and art.