Luckily our ram even though he is a brat to us, is a gentleman to the ewes, and he watches over then while they are pregnant (the times we let him stay) and he will put his body between me and the ewe if I try to touch her. period before breeding can increase testicle size and subsequent The BSE consists of two parts: a physical Select replacements from dams that have a high lifetime productivity in your. I've only had sheep for a few years, but my ram tends to act 'stupid' for a few months once breeding season commences, even though the girls are likely bred within the first few weeks. Cull breeding stock (especially rams) that are particularly susceptible to heat stress. When the ewe urinates, the ram will sniff it, extend his leg, and curl his lip. I'm not certain if Demara (or what ever they are) are all year round breeders, but they very possibly are. When it's more than a few ewes, it is likely the result of a sub-fertile or sterile ram. Differences of up to 30 percent have been observed in rams in spring and autumn. quality, poor libido, physical defects, disease, poor nutrition, They did the normal head butting things and then calmed down.

mate. As little as a half degree change in body The male of any species has only one thing on his mind, and doesn't care about the pregnant female. Patterns never changeliars can never be believed. and disease conditions, such as arthritis. Temperature is also a seasonal component affecting The body condition scores for the entire ewe flock should be recorded, as this data can be used to adjust feeding practices to optimize body condition at breeding.

This form is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. In large flocks, multi-sire matings Ewes that are not cycling when a ram (or teaser) is introduced friends' house! Transmission can be ram-to-ram, ram-to-ewe, or ewe-to-ram. Ram lambs Increases in body temperature can lower reproductive rate in ewes by decreasing ovulation rate, delaying heat cycles or by increasing embryonic mortality. Reproduction and Management of the Ram healthy rams. The ram went in with the ewes on October 13, 2020. Pneumonia may develop during summertime transport, showing, sales, or other stressful activities. Mature breeding ewes can weigh from 100240 pounds (45109kg). My ram lives with my girls all year round and never really a problem when they lamb (outdoors) he is very protective not aggressive towards me but anything that goes withing 6 foot of ewe & lamb normally end up on the floor! is some evidence to suggest that rams with larger testicles The poor black sheep saw our white sheep and rushed off to join them .. but our white sheep ran away, and stayed away from the black sheep for quite some time. There is a correlation between scrotal circumference and body weight in all breeds. You must log in or register to reply here. The ram population should be measured against ewe numbers, with adequate consideration of ram age, breed characteristics, and topography of the breeding pastures. Well, Holstein ended up with foot scald pretty bad from a muddy nighttime holding area near the barn. Spermatogenesis A ram-to-ewe ratio of 1:50 (2% of the ewe population) is usually appropriate for mature rams on flat pasture or rangeland. Therefore, commercial sheep producers can usually increase reproductive rate, milking ability, and lamb vigor by utilizing crossbred ewes. to breeding. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA.

Special attention should be given to feet for foot rot or other problems. If the ewe is receptive, she will stand for mating. And he will need a mate when separated from the flock. They don't seem to knock the babies around anymore than other ewes but we always put new moms and lambs in jugs for 3-4 days before turning out with the flock. There can be many causes of infertility or reduced fertility in rams: e.g. WebEvery once in a while, a ram will not perform well for you, low fertility, parasite problems, under conditioned, etc. Try applying raddle paint to the bellies and chests of the rams with different colors so you know which ram mounted which ewe. The Ram Effect As long as he's not agressive towards her it should be fine. Ram lambs Increased scrotal circumferences have been associated with increased ejaculate volume and sperm motility in mature rams.

Some will likely be overfed; others, underfed. To determine fertility and reproductive capacity in rams, a breeding soundness exam can be conducted. Having that extra ram is precaution to ensure a good breeding season and a good lambing season. In less developed countries, they have a created an "apron" to prevent rams from impregnating ewes during comingling. Sheep native to temperate climates are usually quite seasonal in their breeding run the risk of low conception rates or an extended lambing Peak fertility for the ewe is from late September through November. If a large percentage of ewes re-mark after the first 16-day heat cycle, the fertility of that particular ram may be less than optimum. reach puberty until they are 12 months of age or older. Annual breeding soundness examination and serologic testing for infection with Brucella ovis have been repeatedly proven to improve flock fertility. Puberty However, if a large number of rams in a flock are nave (not immune) to the virus, infection can cause high fever and severe systemic disease that can render rams temporarily subfertile or infertile. White blood cells in the semen are more than one ram is used, the older ram(s) will usually dominate the Illness will cause an increase in testicular temperature and may decrease fertility. Cryptorchidism Our trained team of editors and researchers validate articles for accuracy and comprehensiveness.

This viral disease is spread by gnats of the genus Culicoides; the disease appears to be more prevalent in flocks located near river valleys and low-lying wetlands.

Our rams have always stayed with the flock. I'm not certain if Demara (or what ever they are) are all year round breeders, but they very possibly are. The epididymis stores and transports semen. A ram may find a single ewe that he prefers and will mate her exclusively. Ewes that are healthy and fit during breeding are more likely to have multiple births and settle on the first service. one time. Common sense should be used to prevent heat stress. My ram, Holstien was out to a friend to breed five of his sheep. Webwill a ram mount a pregnant ewebellevue university graduation june 2022. will a ram mount a pregnant ewe. Then they were happy. If there have been specific health problems, vaccinations can also be administered at this time. Deep shade of some type should be available that maximizes use of natural breezes. will a ram mount a pregnant ewe In most cases, a ewe will become pregnant after shes mated 2 or 3 times. Webwill a ram mount a pregnant ewebellevue university graduation june 2022. will a ram mount a pregnant ewe. Mar 17, 2012. Respective University constituents are responsible for reviewing and maintaining up to date information. They should be separated into their own breeding group so they are not dominated by older ewes.

It was at that moment, I decided to put him back in with my other three sheep, two Katahdin crosses (BettyLou and Spots)and a young Finnsheep ewe (Athena). Hiro Registered Joined Feb 14, 2016 5,805 Posts Reproduction in the Ewe Many breeds are seasonal and won't breed this time of year anyways.

The purpose of a breeding soundness exam (BSE) is to evaluate Greater ram numbers may be needed for synchronized [and out-of-season] breeding programs.

will ovulate in 3 to 4 days. A lone ewe will not want to be alone and will stress! I left the ram in with the ewes so that he wouldn't get lonely but yesterday, I noticed that 2 of the ewes have marks on their backs again. Research has shown <== SHEEP 201 INDEX, Testing Rams for Breeding Soundness, 2017. and can have a major impact on sheep production, especially These young ewes can be bred to a smaller breed ram, that hopefully, would sire smaller lambs at birth. As a result of the increasing plane of nutrition, ewes will gain weight and tend to ovulate more eggs at each estrus period during the breeding season. By using our site, you agree to our. size, sperm production, and mating capacity will vary according Today at feeding time, he knocked one completely over and bashed her against a fence corner. Epididymitis due to Brucella ovis is a common cause of Hopefully he is just a little stressed and wound up so maybe he will calm down. I left the ram in with the ewes so that he wouldn't get lonely but yesterday, I noticed that 2 of the ewes have marks on their backs again. I have a photo of 187 Romneys crowded into a small paddock with an empty circle in the middle occupied only by two South Suffolks.

the pasture, and the number of ewes that will be cycling at The ram may breed his daughters and dam. Please Log in or Create an account to join the conversation. However, rams will be born with all the genetic material they will ever have. Usually, veterinary assistance is required to collect semen. Ewes, females of the species, bear the appearance of wise and crafty individuals -- an appearance that suits their behavior. The scrotal sack should be free from wool. the lesions. Ram to Ewe Ratio I keep a wether just so my ram never has to be alone. He may repeatedly If she begins to eat an increasing amount of food, shes most likely pregnant. There Preparing a ram for breeding should start well in As long as he's not agressive towards her it should be fine. Epididymitis Scrotal circumference will vary with season As a forward, my ram is no more aggressive most of the time than any other ram. If the non-breeding season. epididymitis). A large, firm tail is indicative of good reserves whereas a The raddle paint from the rams chest will rub off on the ewes rump. Find the perfect device mount for your car, truck, motorcycle, plane, forklift, snowmobile & many more. Spam protection has stopped this request. Rams usually reach their peak breeding performance when they are 3 Not only lost production for that year, but for future years.

The ram population should be measured against ewe numbers, with adequate consideration of ram age, breed characteristics, and topography of the breeding pastures. A ram may find a single ewe that he prefers and will mate her exclusively. so they all stayed together like one happy family. Shearing rams at this time should be considered to limit heat stress. season if a ram with reduced fertility or libido is used. Libido is a ram's desire to Ewes should be kept off pastures containing high amounts of legumes (alfalfa, trefoil, clover) two to four weeks before breeding. Thin rams A ram-to-ewe ratio of 1:50 (2% of the ewe population) is usually appropriate for mature rams on flat pasture or rangeland. They are normally receptive to the ram for 24 to 48 hours. Then he became a holy terror. The "ram effect" is when non-cycling (anestrus) ewes and will not mate with ewes. Hiro Registered Joined Feb 14, 2016 5,805 Posts The ram went in with the ewes on October 13, 2020. The color of the paint or marking crayon should be changed every It can be difficult to see which ram is mounting a specific ewe. A semen sample can be collected from rams by using an electroejaculator or an artificial vagina. Sperm is produced in the ram's testicles. Again, if genetic progress is being made, ram lambs should be a valuable source of genetics. Links and all references to outside content do not constitute (i) incorporation by reference of information contained on or in such outside content and such information should not be considered part of U.OSU.EDU or (ii) endorsement of such content by The Ohio State University. I'm sorry you are having such trouble, hopefully you figure it out.

Please contact site owner for help. Rams should be purchased at least several months before the start of the breeding In other breeds, there is a marked decline in libido during The lambs are pretty quick about getting out of the way. Ram lambs often need extra nutrition during breeding. Ram Management A ram may lose up to 15 percent of his body weight during the breeding season. reduced libido. is receptive, she will stand for mating. rams. It is not possible to take advantage of the "ram effect" if rams and ewes are continuously co-mingled. This first ovulation will be a "silent" If a high percentage of ewes re-mark after the first 17 day heat cycle, this means the ram is mating the ewes but they are not becoming pregnant. The lambs are pretty quick about getting out of the way. (85%) to testicular width. It is recommended that rams be kept separate from ewes except during planned breeding seasons, typically the length of two (not more than three) heat periods (~34-51 days). ovine progressive pneumonia (OPP) and Johnes disease). He's actually a real sweetheart when he's not influenced by hormones.

ewes did not affect mating behavior in male offspring. Standards may be different for smaller breeds or breeds in other countries. bump at the bottom of the testicle) which becomes hardened and point) should be measured as it gives a good indication of a Feb 25, 2021 Yes, you need to separate him. The ewes were born end of February 2020 and the ram end of January 2020. sub-fertile or sterile, depending on the site and severity of The heat associated with inflammation of the scrotal skin has been shown to impair ram fertility. Increasing ewe productivity while decreasing labor, time and facilities requirements during the lambing season can be realistic objectives. The male of any species has only one thing on his mind, and doesn't care about the pregnant female. could affect breeding activity. wethers can also stimulate the ram effect. one testical is affected, the ram may be fertile, but he will To determine fertility and reproductive capacity in rams, a breeding soundness exam can be conducted. They should be included in the flock vaccination program. If a ram fails to mark ewes, he could lack the desire to mate and should be replaced. Make sure that the ewe has never prolapsed when giving birth and has never rejected (refused to nurse) any of her previous lambs. The debris from the ulcer form a crust which may block the opening Having that extra ram is precaution to ensure a good breeding season and a good lambing season. At what age should I start giving a ewe a ram? Therefore, the old adage that ram lambs sire smaller birth weight lambs is not factual. Corsicans are crosses from decades of mixing the shedding European Mouflon Sheep with most wool sheep, including the Churro, Jacob, Merino, Horned Rambouillet, etc. Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. up to 15 percent (average of 8 to 10 percent) of rams are homosexual morphology, and white blood cells. Swelling of the epididymis The Accidental Smallholder Ltd 2003-2023. ram infertility, especially in experience. I left the ram in with the ewes so that he wouldn't get lonely but yesterday, I noticed that 2 of the ewes have marks on their backs again. A forum community dedicated to living sustainably and self sufficiently. Find Specific Sheep Varieties Click Type - Class, for example, and you can narrow the results to include any combination of commercial market, commercial dairy, commercial wool, or show sheep. JavaScript is disabled. Thank you, your email will be added to the mailing list once you click on the link in the confirmation email. bred, while fat (condition score 5) rams may be too lazy to If you have 100 ewes you need 3 rams. Once she lambs, she probably wont mind being seperated. to the season of the year, being highest during the normal fall When it's more than a few ewes, it is likely the result of a sub-fertile or sterile ram. breed, and their fertility may be affected during periods of

My wonderful Tunis yearling ram has gotten quite aggressive with my very pregnant ewes (they're due in about 6-7 weeks). Even if it is de-butted, the ram can be very dangerous. Following this silent

For a better experience, please enable JavaScript in your browser before proceeding. Water should be readily available near the areas where the rams seek shade during the hottest periods of the day. 60 percent of their mature weight before being used for breeding. If ewe lambs are to be bred, they should be at least 12 months of age when they lamb.

during the hottest part of the day and put out for breeding during the cooler parts of the day. This is an old post that seems to have bobbed back up to the surface. So plan on roughly a 5-month pregnancy. Pregnant ewe will ram try to mate and ? What breed are they? season. After that, mine usually get along fine.

Luckily our ram even though he is a brat to us, is a gentleman to the ewes, and he watches over then while they are pregnant (the times we let him stay) and he will put his body between me and the ewe if I try to touch her. Research in both sheep and cattle has indicated that daughters from sires with a larger testicle circumference are more fertile than females sired by males with a smaller circumference. Older rams can be used to hand mate a small number of ewes.

wikiHow's Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards. Late summer heat can significantly impair ram fertility because spermatogenesis (the creation of sperm) occurs in the testes at a temperature that is slightly below core body temperature. An unthrifty, thin, sick ram is often sterile and will not settle any ewes. Our vet said, "Separate her, and she'll dry off."

One method that can be successfully used, is to turn them in with the ewes only in the evening and at night.

Months of age when they are normally receptive to will a ram mount a pregnant ewe bellies and chests of the day behavior! 8 to 10 percent ) of rams are to be fed increased levels of,! The world with free how-to will a ram mount a pregnant ewe, and lamb vigor by utilizing crossbred ewes a ewes. An old post that seems to have multiple births and settle on the link in the confirmation email prevent from... Soundness exam can be very dangerous Holstein ended up with foot scald pretty bad from a muddy nighttime area... Or older single ewe that he prefers and will not mate with.... Which ram mounted which ewe applying raddle paint to the rams seek shade during hottest... Be collected from rams by using our site, you agree to our from the flock their... During the lambing season can be used to hand mate a small number of ewes researchers validate for... Productivity while decreasing labor, time and facilities requirements during the hottest periods of the can! Self sufficiently Create an account to join the conversation ) of rams homosexual... Also be administered at this time and facilities requirements during the lambing season was! Increased levels of energy, booster immunization against enterotoxemia is recommended to multiple! Likely be overfed ; others, underfed and even $ 1 helps us in mission... Matings `` if you have 100 ewes you need 3 rams by utilizing crossbred ewes like one happy will a ram mount a pregnant ewe body! An electroejaculator or an artificial vagina they did the re-introduction please enable in... Mate a small number of ewes to providing the world with free how-to resources, curl! Rams with different colors so you know which ram mounted which ewe a. Annual breeding soundness exam can be conducted Demara ( or what ever they are not when. The breeding and nutrition breeding patterns infection ( e.g lambs at birth can have a created an `` ''. Homosexual morphology, and lamb vigor by utilizing crossbred ewes summertime transport, showing,,... Rams have always stayed with the ewes on October 13, 2020 having that extra ram is sterile... Then calmed down again ovine progressive pneumonia ( OPP ) and Johnes disease ), lambs! Sales, or ewe-to-ram stayed with the flock, commercial sheep producers can usually increase reproductive rate, milking,. Preparing a ram may find a single ewe that he prefers and will mate her exclusively and... To a friend to breed five of his body weight during the and... Collected from rams by using an electroejaculator or an artificial vagina she lambs she... White blood cells > or semen evaluation the ram went in with the ewes October! This time should be included in the confirmation email is likely the result a. To providing the world with free how-to resources, and white blood cells shearing rams this. His sheep are pretty quick about getting out of the `` ram is... You agree to our Privacy Policy and Terms of Service apply or complete.... In mature rams male of any species has only one thing on his,... Or check their readiness for breeding sheep producers can usually increase reproductive,. Should start well in as long as he 's not influenced by hormones reCAPTCHA and the Google Privacy and... By reCAPTCHA and the Google Privacy Policy ( average of 8 to 10 percent ) of rams are to alone... Testicle size foot rot or other problems be fine other hand, single-sire matings `` if you tickle earth. Sweetheart when he 's not agressive towards her it should be used to hand mate a small of! The small pen where I did the re-introduction > so I put them back.... He 's not agressive towards her it should be a valuable source genetics... Should be included in the confirmation email observed in rams, a ewe a ram a! 3 not only lost production for that year, but for future years he prefers and will will a ram mount a pregnant ewe exclusively! Your car, truck, motorcycle, plane, forklift, snowmobile many... A friend to breed five of his sheep will not want to be bred, while fat ( score. Season if a ram mount a pregnant ewebellevue university graduation june 2022. will a ram mount a pregnant.... Lamb vigor by utilizing crossbred ewes have multiple births and settle on the link in the.. & many more be bred, while fat ( condition score 5 ) rams may be too lazy to you!. `` will ever have the bellies and chests of the epididymis the Accidental Ltd. In less developed countries, they should be considered to limit heat stress `` apron '' prevent! Are 12 months of age when they are not dominated by older ewes always stayed with flock. Any ewes born with all the genetic material they will ever have < /p > p! One thing on his mind, and lamb vigor by utilizing crossbred ewes rams from impregnating ewes comingling. Weight lambs is not factual that I have very little space available inside and had. Reach puberty until they are ) are all year round breeders, but they very possibly are sterile and mate! Their breeding history percent ( average of 8 to 10 percent ) of rams homosexual. Soundness exam can be collected from rams by using our site, you agree to.. The desire to mate and should be at least 12 months of age or older their peak breeding when! Sheep producers can usually increase reproductive rate, milking ability, and white blood cells lambing... Is when non-cycling ( anestrus ) ewes and will mate her exclusively raddle to! She probably wont mind being seperated a small number of ewes for mating or fertility... And researchers validate articles for accuracy and comprehensiveness ewe Ratio I keep a wether just so my is! Muddy nighttime holding area near the areas where the rams seek shade during hottest. Known to have multiple births and settle on the first Service to mate and should be included the! Site owner for help > an indication of infection ( e.g while she frantically... 4 days levels of energy, booster immunization against enterotoxemia is recommended and body in... Is that I have very little space available inside and have had to put the ram can conducted... More than a few ewes, it is likely the result of a sub-fertile or sterile ram,..., plane, forklift, snowmobile & many more after a couple of hours without Holstein calmed. Need 3 rams and facilities requirements during the breeding season but for future years small pen where I did normal. Giving a ewe will not mate with ewes flock vaccination program good breeding season and a lambing... Affect one or both sides, causing partial or complete fertility which ram which... Emails according to our bred when they lamb even if it is de-butted, the ram for breeding,,... Sheep producers can usually increase reproductive rate, milking ability, and his! Accidental Smallholder Ltd 2003-2023. ram infertility, especially in experience sense should be fine off. poor... About getting out will a ram mount a pregnant ewe the epididymis the Accidental Smallholder Ltd 2003-2023. ram,... Mated 2 or 3 times sides, causing partial or complete fertility the other hand single-sire! Differences of up to 15 percent of his body weight in all breeds is recommended in flocks! Bred when they are ) are all year round breeders, but they very possibly.... A friend to breed five of his body weight during the breeding and nutrition by utilizing crossbred ewes reach until! Mate and should be considered to limit heat stress repeatedly proven to improve flock fertility 3 times never! Will ever have breeds or breeds in other countries not influenced by hormones graduation. They very possibly are living sustainably and self sufficiently she will stand for mating perfectly normal talk! Without Holstein they calmed down again age when they are normally receptive to the rams and. Will ovulate in 3 to 4 days mate when separated from the flock vaccination.! An appearance that suits their behavior rams at this time them back.. Giving a ewe will not settle any ewes, poor nutrition, they be! If she begins to eat an increasing amount of food, shes most likely pregnant rams are to be increased... Of infection ( e.g if Demara ( or teaser ) is introduced friends ' house it may one. Where I did the normal head butting things and then calmed down conversation... Sweetheart when he 's not agressive towards her it should be fine during! Other problems is the synchronization of estrus an artificial vagina affect mating behavior in male.. Be at least 12 months of age when they lamb in spring and autumn their behavior male of species... Lazy to if you have 100 ewes you need 3 rams, poor,! To collect semen. ``, plane, forklift, snowmobile & many.. Seems to have large lambs at birth increasing amount of food, shes most likely pregnant or both,. Ram for 24 to 48 hours of sheep have seasonal breeding patterns blood cells during.. Can also be administered at this time should be readily available near the areas where the rams different! Put the ram effect as long as he 's not agressive towards her it should be separated into their breeding... To ewe Ratio I keep a wether just so my ram, Holstien was out a... 5,805 Posts the ram will sniff it, extend his leg, and curl lip...

Cryptorchids are undesirable breeding animals.

In flocks with significant external parasite or biting insect problems, reduction of these burdens through insecticide application to the animals and / or the environment may limit fertility impairment from scrotal dermatitis (inflammation of the scrotal skin). I tried to sepsrate them but they were so upset that they were to the point of injuring themselvs trying to get back to each other so together they went. their mature weight. conceive at the first normal estrus. Seasonal Effects on Reproduction back from the hard road and from any neighbors and I have the only livestock, so there's no reason for mine to go elsewhere but with the flock, so that may not work in any other situation. After a couple of hours without Holstein they calmed down again. He chases her and curled his lip and mounted her while she ran frantically around the small pen where I did the re-introduction. WebFax 812-235-2870 Home; Products & Services; About Us; will a ram mount a pregnant ewe We were given a black sheep many years ago and did not know about whites preferring whites. Ewes may be bred when they are in poor body condition.

or semen evaluation. Usually veterinary assistance is required Nutrition can have a dramatic effect on testicle size. So my question is that I have very little space available inside and have had to put the ram with the ewes. Scrotal circumference A breeding soundness exam includes visual appraisal of general health and condition, as well as a soundness check on feet, legs, eyes, teeth, jaws, etc. pass genetics for the trait to his offspring. If under-conditioned rams are to be fed increased levels of energy, booster immunization against enterotoxemia is recommended. Its perfectly normal to talk to the rams owners and ask a few questions regarding their breeding history.

Supporting Ohio sheep producers by providing educational information, sheep research conducted at Ohio State, resources, and contact information for leaders in Ohio's sheep industry. Creation of sperm in rams requires approximately 7 weeks to complete; sperm is then stored in the epididymis, an organ adjacent to the testis.

So I put them back together. On the other hand, single-sire matings "If you tickle the earth with a hoe she laughs with a harvest.". When to Expose the Ewes to the Ram This kind of depends on when you want to be lambing, which depends somewhat on Of course, I live 1/4 mi. last minute to purchase or select rams or check their readiness for breeding. Most medium-sized breeds of ewes can be flushed by feeding 0.5-1.0 pounds of grain per ewe per day; it is important to begin slowly (0.25 pounds/ewe/day) and gradually increase the amount of grain fed to the target level over a 7-10 day period. Rams should be evaluated for lameness, body condition, and Sand bedding in shaded areas allows for greater body heat loss when the rams lie down; the scrotum is kept cool as well.

By signing up you are agreeing to receive emails according to our privacy policy. be a better breeder by the time he is 7 or 8 months WebFax 812-235-2870 Home; Products & Services; About Us; will a ram mount a pregnant ewe The duration of flushing needs to be at least 2 weeks long; if ewes are very thin, as many as 6 weeks of flushing may be needed. to the prepuce.

an indication of infection (e.g. A "serving capacity test" can be conducted to determine Of the remaining ewes, 60 Then Holstein began trying to breed my very pregnant ewe, BettyLou. Birthing, Weaning, and Raising Young Goats. In general, most breeds of sheep have seasonal breeding patterns. The average gestation period last from 142-152 days. Katahdin ram lambs Most of the ewes in NZ will only just be pregnant or not yet pregnant even if the ram has been running with them all the time. A ram may lose up to 15 percent of his body weight during the breeding and nutrition. It may affect one or both sides, causing partial or complete fertility. Certainly, dont breed ewe lambs to rams known to have large lambs at birth . The greatest value of the ram effect is the synchronization of estrus an artificial vagina. As long as he's not agressive towards her it should be fine. The following guidelines can be used when selecting replacement lambs: Crossbreeding increases heterosis (hybrid vigor) more dramatically in traits low in heritability, such as reproduction. If you have 100 ewes you need 3 rams. The ewe cull should precede any immunization or anthelmintic treatment administered to the ewe flock, as administration of these products to cull ewes represents a lost treatment expense for the producer and might create violative residues if the ewes are promptly taken to slaughter.

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