Lambing percentage calculator

Lambing Calculator - Gestation Calculator

*Uses an average 147 day gestation period for a sheep. Lambing dates can generally be anywhere from 144-151 days from first bred date.. Lambing Calculator. The Lambing Calculator is simple to use instead of the customary Sheep Gestation Chart. Sometimes, also called the Sheep Gestation Calculator Lambing Calculator. Gestation in sheep varies from 142 to 152 days with the average being 147 days. Just like people, individual pregnancies can vary, gestation periods of 138 to 159 days are not unheard of. Ewes carrying multiple lambs tend to have shorter gestations while male lambs (and heavy birth weight lambs) are usually carried for. Your docking (marking, tailing) is probably over; do you know what your lambing percentage for this year is? To calculate this KPI, you need to know: Number of ewes mated; Number of lambs docked or tailed; Divide 2/1 and multiply by 100 to get the answer; For example, we had 1500 ewes mated and we docked 2200 lambs 2200/1500 = 1.47 x 100 = 147

Lambing Calculator Blackie's Suffolk Sheep & Veggie

This lamb efficiency calculator allows you to measure the efficiency of the rearing enterprise. To do this you will need to input the farm's scanning results to give an overall scanning percentage. The results are then compared to the Welsh average. The following data is required to use this calculator: View Organisatio Scanning and Lambing Calculator. 059-6481266. Menu Skip to conten

Increase your lambing profits. Use this handy Lambing ROI calculator you estimate your returns based on a number of factors. When lambing, more multiples equals more money. A PSG injection at ovulation = more multiples. As a farmer, you will know, that with lambing in the field. The mother looks for the lamb while the mother-to-lamb bond is being established Lambing Date Calculator: 145 Day Sheep Gestation Table; Date of Service Watch for Lambs Date of Service Watch for Lambs Date of Service Watch for Lambs Date of Service Watch for Lambs Date of Service Watch for Lambs Date of Service Watch for Lambs Date of Service Watch for Lambs; Jan. 1: May 26: Feb. 24: Jul. 19: Apr. 19: Sep. 11: Jun. 12: Nov. Lambing percentage Lambing percentage (LP) is used to express the proportion of lambs that was born or tagged compared to the number of ewes that were mated. LP can range from below to above 100% depending on the number of lambs that were born. ˜˝ % ˚ ˘ x 100 Fecundity Fecundity (Fec) measures the twinning percentage

Lambing Percentage - Anex

Lamb Efficiency Calculator - Farm Tabl

'He is also focused on increasing the lambing percentage from 140% to 150%.' 'Each 1 percentage point change in lambing percentage equates to 200,000 lambs.' 'One South Island high country client is achieving a lambing percentage of 155 at 450 metres height. Lambing systems. A lambing system concerns when lambing will occur (what season or months), how often a ewe will lamb (annual vs. accelerated), and how and where lambing will occur (shed vs. pasture). Even the breeds noted for out-of-season lambing will produce a 10 to 20 percent higher lamb crop in the spring than in the fall. Any breed of. Online Percentage Calculator. Online Percentage Calculator enables its users to compute percentage differences of multiple kinds among big numbers with ease. Meanwhile, you can determine the percentage increase and the percentage decrease from one value to another value in this high-precision percent calculator How Close are Your Scanning and Lambing Rates? ANALYSIS - Pregnant ewes need managing correctly to ensure recent or upcoming scanning percentages are realised as healthy lambs born. Losses in the uterus and in the lambing shed are the two key factors producers can look to affect at scanning, according to Matt Haslam of Benchmark Animal Health At lambing, single carrying ewes should be set stocked at 1000 kg DM/ha and twins at 1200-1500 kg DM, depending on the lambing date. If feed is going to be short, keep ewes tight at the early stages of pregnancy rather than later. It is unlikely that twin bearing ewes will increase their condition over the last few weeks before lambing

Sheep Lambing Calculator - Quinns of Baltinglas

To calculate, multiply the average lamb weaning weight at 90 days by the weaning percentage (number of lambs weaned per ewes mated) and divide the result by the average ewe weight at tupping. For example, take a flock of 72 kg ewes at tupping, lambing from 1 April onwards, weaning at 176% with an average lamb weight of 31 kg on 16 July (90 days) American Sheep Industry completed an in-depth study of American sheep producers and found that the average lambing percentage across the country is 110 percent. This means that 100 ewes produce 110 lambs. The American Sheep Industry seeks to improve this productivity calculation through education and by using quantitative genetic selection. This assessment of breeding potential is expressed as Estimated Breeding Values or EBVs. The following EBVs are produced for Texel Sheep clients: Growth rate to eight weeks of age. Maternal ability of ewe Weight at eight weeks of age. To achieve an adjusted eight week weight lambs must be weighed between 42 and 84 days of age

Sheep Lambing House Sheep Indoor Feed Pad ROI Calculator

  1. Most of these lambs breed at the age of 7 to 9 months of age. However, their lambing percentage stays below 150 percent and is not included in my calculation of lambing percentage. A lambing percentage of above 200 percent is not possible with the sheep I have. Ewes having consistently twins year after year are rare. I do have ewes that have.
  2. ant of profit, along with stocking rate • Crossbred ewes scan up to 200% and can wean 185% but 140% is typical as 15% of neonates lost • Barren ewes result from avoidable abortions -EAE and Toxoplasmosis. Vaccinate replacements. • Cull barren two tooths • Use EID and cull anything less than 10%.
  3. medium fecundity (lambing percentage) Accelerated Lambing. Accelerated lambing is a more intensive system based on prolific ewes and high production that aims to produce market lambs and cash flow throughout the year. Profitable accelerated lambing enterprises: lamb 3-5 times a year, timed to take advantage of best months for conception and.
  4. 3 ways to capitalise on high sheep scanning percentage. Favourable grazing conditions have lifted scanning rates on many UK farms, with one vet practice reporting an average increase of 10-15%. At.

145 Day Sheep Gestation Table and Lambing Date Calculator

  1. infectious diseases. Rearing percentage = (number of lambs reared/number of ewes put to the tup) x 100 Where ewes give birth outdoors, lambing percentage and lambs turned out may be replaced by a figure for lambs tailed. This is generally done after lambing, but is still an important measure. The target fo
  2. Lambing Calculator. Return to Charts. Breeding Date: (MM/DD/YYYY) Expected Lambing/Kidding Date: Possible Range: to Expected date based on 147 day gestation. Range based on 138 days to 159 days. Featured Products. Lamb and Kid Stomach Feeding Kit. APE Agri-Pro Enterprises of Iowa, Inc
  3. [ Lambing Date Calculator] [ Toxic Plant List] [ GALLERY] [ MEMBER DIRECTORY] BSSBA's Inbreeding Coefficient Calculator. The Coefficient Of Inbreeding, or COI, commonly labeled F and expressed as a percent, is a measure of the amount of consanguinity in an individual's ancestry,.
  4. Calculation of lambing percentage (LP) will give the answer. Lambing percentage is calculated by the following formula: LP = (Number of lambs born alive/Number of ewes exposed to ram) x 100. 5. Calculate the LP for the flock shown in Table 1. Express your answer in a percentage. _____ 6. What does this percentage imply about the types of births.
  5. (lambing percentage) Number of triplets Number of quads Lambs alive after 48 hours per 100 ewes to ram Number of empty ewes at scanning Lambs died in first 48 hours per 100 ewes to ram Lambing Start date of lambing (DD/MM/YYYY) Lambs died after 48 hours per 100 ewes to the ram Number of lambs born alive Lambs weaned per 100 ewes to ra

Ever need a handy gestation table to let you know when your calf is due? Cattle Today's Gestation Table and Calculator is just for you. Generally younger cows and smaller breeds calve up to 10 days earlier and older cows and larger breeds calve up to 10 days later Our Lambing: Rams go in on 1st November. Lambing begins on 1st April. Lasts 3-4 weeks. 175% scanning percentage. 160% lambing percentage. Please note: our lambing percentage will seem less to that of a more traditional breed of sheep such as a Texel or Suffolk. Traditional breeds might also achieve £10% more than the Easy Care breed at.

Lamb loss percentages are influenced by weather, lambing percentage, management, genetics and other factors so a realistic projection depends on all these factors. For example, a 10% loss would be very low for a 225% lambing group whereas probably a little high for a 120% group. Sounds like you are doing pretty well Feeding the ewe so she is gaining weight about 2 weeks before breeding is called flushing. Flushing may increase lambing percentage by increasing the number of eggs that the ewes ovulate. Flushing works best on thin ewes. Ewes that are already in good body condition usually do not respond well to flushing ‎Farmer's Lambing Percentage's is designed to make finding lambing percentage's easy. You simply enter in the ewe tally followed by the lamb tally and hit calculate. It's really that simple, once you're done hit reset and you can start again with the next calculation. Feature's: - Design made to s Remember, the DSE ratings are based on a number of assumptions about weights, growth rates and lambing percentages. There will be some variation in these figures from region to region and from farm to farm, so the figures in Table 1 are estimates. But they do give a good idea of the general differences between types of animals 150% lamb crop (190% in Finn cross ewes) born on mature ewes of ewes lambing (# of lambs born divided by # of ewes lambing times 100) Less than 10% lamb mortality from birth to 30 days of age; Less than 5% lamb mortality from 30 days of age to weaning; Popular Breeds of Sheep In Montan

Measuring Reproductive Performance of Sheep - Management

  1. Lambing ewe lambs could reduce the greenhouse gas emissions generated per kilogram of carcase meat produced by approximately 9.4% over six years During early and mid-pregnancy and lactation, ewe lambs require 20% more feed than mature ewes to sustain continuing body growth to achieve 80% of mature liveweight when tupped as shearling
  2. The lambing percentage of ewe lambs will primarily be influenced by time of joining and ewe live weight. Sheep are seasonal breeders with reproductive activity peaking in autumn, stimulated by shortening day length. Few ewe lambs under 12 months old will cycle naturally before January - a March/April joining will usually be more successful
  3. Lambing Percentages. For sheep producers, lamb marking time is a test of how well they have managed their ewes throughout joining, pregnancy and lambing. There are numerous reasons (and excuses) for poor or good lamb marking percentages per ewe joined; however this percentage doesn't tell us the full story about where lamb losses occurred
  4. e our lambing percentage, each ewe is marked up (by spray painting) with a particular colour corresponding to singles (blue), twins (no mark) or triplets (green) and quads (two green dots)
  5. g and Texas and an empirical2 distribution for North Dakota. Th

Maximising Lambing Percentages SheepConnect S

Sheep: Specify the genotype, size, mating details, weaning percentage etc for the baseline system. It's much easier to select a Start Date (on the Pasture Page) that allows mating, lambing and weaning to occur in that order. Cattle: Specify the genotype, size, mating details, weaning percentage etc for the baseline system. For cattle, take. the higher lambing percentage, which required a reduction in stocking rate as lambing percentage increased. For example from a lambing percentage of 124 per cent to 180 per cent the model estimated a reduction in the total number of sheep by 53 stock units in order to balance the supply and demand of feed. Th Estimate a birth date for lambs from the start of lambing plus 10 days. For example, if lambing starts on 25 April, add 10 days to get a birth date of 5 May. To get a percentage from this, 34. estimate the percentage as just below 40% or greater than 33.3% (one-third). A. calculator can be used to work out the exact percentage by keying in 6 ÷ 16%. The. percentage strip can then be turned over to check the estimate. Ask how else they. could have estimated the percentage if there had been no strips

When labor and fuel for feed delivery, equipment depreciation, and feed costs are combined, nutrition represents the largest cost in sheep production. A producer must know the animal's nutritional requirements during the different phases of production, the nutrient composition of available feedstuffs, and how to provide the available feedstuffs to meet the animal's requirements NADIS is a unique online based animal health resource for farmers, vets and SQPs. The information is written by veterinary experts, peer-reviewed and presented in a practical format with a high visual clinical content to improve disease awareness and highlight disease prevention

per ewe lambing • Number or percentage of lambs weaned per ewe exposed • Number or percentage of lambs weaned per ewe lambing • Percentage of mortality from birth to After weighing a lamb at weaning, calculate its adjusted weaning weight as follows. 1. To adjust weaning weight for the age of the lamb, first subtract birth weight from. Measuring and monitoring flock mortality. If you would like to reduce flock mortality pre and post lambing, then start to measure and monitor flock performance. With lamb losses from scanning to sale running at an estimated 15% to 20%, there's plenty of scope to reduce to 10% or less, says ADAS's Kate Phillips. 12.Aug.19 Meanwhile, one way to get a quick summary of the total percentages is to calculate it through the Livestock Totals summary. Go to menu (top left corner) > Summaries > Livestock Totals. You can also record lambing percentage using a mob action on the breeding mob, and leaving the percentage in the notes for reference 4 lbs. mixed hay and 2.25 lbs. 16% commercial feed. 2 lbs. grass hay and 4 lbs. 16% commercial feed. Do not feed the full amount the first few days after lambing. Provide the ewe with hay and plenty of clean fresh water. Gradually increase the feed to the desired level during the first week after lambing For sheep producers, having a high percentage of live births means more animals to market. But that doesn't just happen on lambing day. It takes careful matings , good management practices and a high-quality nutrition regimen to make sure the ewes get bred, sustain their pregnancy and deliver healthy lambs , preferably two of them

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Farming Online Ltd PO BOX 22 Much Wenlock TF13 9AD. 0870 909 090 IMPROVING LAMBING PERCENTAGE LAMB SURVIVAL (0-10 DAYS) Prevent losses due to abortion biosecurity, vaccination, antibiotic therapy Have ewes in good body condition at time of lambing: 2.5 to 3.5 Proper late-gestation nutrition Proper lambing environment: dry, draft free, clean Short lambing season Attended lambing, jugging Appropriate. These calculators are not intended to tell you the value of a ram. Instead, they compare the relative value of one ram to another. For instance, if Ram A has a NZMW index of 1600, and Ram B has a NZMW of 1000, the calculator may determine that Ram A is worth $900 more than Ram B to you The lambing calculator works similarly. Double click any date in the 'date seen' cell in column E, and the due date will auto calculate. Again, the ewe gestation time can be changed using cell 'J1'. The poultry hatching date spreadsheet works in the same way. Pick a date in the one column and the next column will calculate the hatch Time of lambing for your pasture system. Ewe condition leading up to lambing is more important than ewe condition at joining due to the huge impacts of poor nutrition on the ewe and unborn lamb. However, how the ewe gains that condition prior to lambing can affect the profitability of the sheep enterprise

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The percentages for outdoor lambing flocks were 69, 50 and 27%, respectively. A total of 23,580 lambings individually were recorded by the students, corresponding to 43,750 lambs born. Sixty-five students (60%) recorded either the requested 300 lambings, or 100% of lambings that occurred during their stay 3. Ewe flock is lambed once per year in May with pasture providing 100% of the feed needs of lambing and lactating ewes1 and 90 percent of feed needs of weaned lambs through to 35 kgs (77 pounds). 4. Flock size is maintained at 1,000 ewes. 5. Ewe replacement rate is 18% to cover 15% cull and 3% ewe death loss. 6 If you calculate this statistic and come up with a value of 96 to 100 percent for your flock, classify this as excellent. Be honest with yourself when making these calculations and include the total number of ewes that were present in the flock when the rams were turned with the ewes, not the number present at lambing time Maize grain can be used to provide extra energy when pasture growth rates are lower than expected. A number of sheep farmers fed maize grain to help build up pasture cover after last summers' drought. 2. Flushing ewes. Strategic supplementation of ewes in the late-summer to early-autumn can increase ovulation rates and lambing percentage

Lambing ewe lambs. The advantages of lambing ewe lambs after the main flock are: It allows more time for ewe lambs to grow and mature. There is a positive effect of reduced day length on ewe lamb fertility. Increased availability of labour to aid immature ewes at lambing time. However, lambing ewe lambs when the rest of the flock has finished. Pasture Tools and Calculators. This tool is designed to help you to plan your rotational grazing systems, determine appropriate stocking rates, calculate your pasture growth rates, determine how long your paddocks will last and calculate the most economical ration for your stock. The costs and benefits of resowing pastures to livestock, soils. Serum progesterone samples were extracted 45d post ram induction to determine either cyclicity or potential pregnancies in the ewes. Ultrasonography readings 60d postbreeding were used to indicate pregnancy, and all lambing data was collected to calculate actual lambing percentages Results are expressed as a percentage of the diet. Total Digestible Nutrients (TDN) % An estimate of the energy content in the diet which can be used Milk production peaks at 2-3 weeks after lambing and declines to a low by 8-10 weeks. Mineral supplementation is important. Maint. Breeding Late Preg. Lactation Protein 9.0 9.4 10-12 13-14.

James Thompson, Oregon State University, Retired Sheep Specialist (Previously published on the Oregon State University Extension page: August, 2018) Fall or out-of-season lambing involves breeding ewes in April and May to produce lambs in September and October. The inability of most breeds of sheep to cycle and breed in the spring to early summer is a major constraint for success in this endeavor Use the fraction relationships to find the percentages, e.g. 4/10 = 40% and 10/4 = 2 ½ = 250%. Use division on the calculator, to check and to calculate the answers, e.g. 12 ÷ 30 = 0.4 = 40% and 30 ÷ 12 = 2.5 = 250%. Copymaster Six provides many contextual examples of whole to whole or part to part comparisons If the lambing season is spread out, check ram and ewe fertility issues. Calculation= Proportion of ewes lambing to 1st cycle=(# of ewes lambing < 163 days after the ram is introduced / # of ewes lambing) * 100%; Proportion of ewes lambing to 2nd cycle=(# of ewes lambing 163 to 174 day Finding the cause of poor lambing percentage If you have to find out why a lambing percentage (LW/EJ) is lower than expected - then here's a list of things that could be causing it. High ewe losses from joining to lambing, and then from lambing to weaning. High Dry/Dry (barren) ewe numbers. Poor flushing - low ovulation rates

Fraction to Percent Calculator

Little labor is required during spring lambing and winter feeding. Six hours of labor per ewe per year should be sufficient. Approximately 10 acres of fair to good pasture should supply 80 to 90 percent of the nutritional needs of 30 to 35 ewes. Pasture management can be divided into two categories: continuous stocking and rotational grazing The Rambouillet sheep is a breed of sheep originating from France. The breed is known for its fine wool, which can be used to create high-quality yarns and fabrics. Rams of this breed are average in size, typically tipping the scales at around 250-300lbs, with ewes weighing around 150-200lbs. What is truly remarkable is the wool The tool factors in ewe bodyweight, flock numbers and the current lambing percentages to show clients the profitability of a Probreed-style production, which is based on low to moderate ewe size, which allows for a higher carrying capacity, as well as the high lambing percentages

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Lambing percentage and wool cut are two commonly discussed profit drivers of a self replacing or first cross lamb producing flock. However ewe death rate, is often overlooked as a profit driver and in fact, it is a figure that people rarely even bother to calculate. Some recent figures compiled by Lambing percentage Not surprisingly there is a strong relationship between lambing percentage and EBITR/ha. Figure 4 shows this relationship and identifies that the top 20% of farms almost all have a lambing percentage above the median in 2008/09 of 104.7% and some achieving significantly higher percentages than this Boost returns by lambing outdoors to save costs associated with labour, housing and feed, and to reduce lamb mortality while maintaining lambing percentage. Labour is the largest input associated with sheep production, which means outdoor lambing can be a major component oflow inputsheep production as it reduces the labour requirement by 30%

Calculators included. Goat Gestation Calculator. Figures 145, 150 and 155 day gestations when you enter a known breeding date. Cow Gestation Calculator. Figures 278 (Jersey), 283 and 292 (Brahma) day gestation when you enter a known breeding date. Also gives a recommended dry off date You would then possibly be looking at 20 odd females maximum and try to keep them in good condition to maximise lambing percentages / prevent losses. You will then learn your market and can decide - are bigger single lambs more cost effective or are twin lambs more profitable and then if your after twins and the ewe is regularly producing. Ovastim is an injectable product used to increase the ovulation rates and consequently lambing percentages of prime lamb producing ewes. Species Choose the species you are interested i The Dorper Sheep is a hardy resilient South African breed of sheep that can withstand various harsh climates, environments and intensive operations. The ewes produce vigorous, healthy, robust lambs that have a high survivability. The ewes are also heavy milkers with excellent maternal instincts. They are and alert, docile, easy to handle and. The practical implications of this on increased lambing percentage and curtailment of the lambing season are obvious. FINDINGS Judging by the number of ewes, which were covered during the four successive weeks and ultimately, lambed, more ewes were covered unsuccessfully during the first week than in the following weeks

*Uses an average 285 day gestation period for a Cow (Bovine). Cow gestation periods can generally be anywhere from 279-292 days.. Cow Pregnancy Calculator or Calving Calculator. The Cow Pregnancy Calculator is a much simpler process to use than the often-used Cow Gestation Chart. The gestation chart is where you had to count the days until your Cow's due date and lambing. Ram breed and selection. Ewe breed and parity. Lambing percentage. Weather conditions and the provision of shelter during lambing. The management of ewes at lambing . The size, shelter and topography of lambing paddocks. The provision of skilled labour at lambing. The stage and estimated numbers of lamb losses We've got 28 lambs so far, with two more births to go - most likely twins. One of the ewes in the non-preg paddock even popped out a lamb today! If we get four more lambs, our lambing percentage will be 145% to date. (This is counting all live lambs divided over ALL ewes joined to the ram = 32/22 = 145%) Lambing percentages will be up by as much as 10% in 2016. Lambing percentages will be up by as much as 10%, year-on-year, according to Teagasc sheep specialist Ciaran Lynch. This is one of the trends identified through the Better Farms programme, he said Sheep need salt to provide economic gains, to reproduce and lactate. Mature sheep can consume approximately 9 grams of salt daily, while lambs only need half of this amount. Most sheep farmers provide 225-350 grams of salt per ewe on monthly basis. Salt should represent 0.2%-0.5% of the dry matter in the diet

Flushing increases ovulation rates, which usually result in a higher lambing and kidding percentages. Later in the breeding season, flushing may help to improve embryo survival. Ewes and does already in good body condition (BCS > 3.0) usually do not respond to flushing. Free access to pasture or 2 ½ to 4 lbs. of grass hay plus . . lambing percentage (although it is realized that states report this percentage differently). This calculated revenue is then divided by the region's representative ewe flock size (i.e. WY region has a 1000 head ewe flock), to put the revenue on a $/ewe basis Increase your profits. When lambing, more multiples equals more money. A sheep lambing house shed allows for vastly improved lamb and ewe management during the lambing season. Increase your lamb weaning percentage. Lower your lambing mortality rates. Increase your mother-on success rate - especially with multiple lambs. Easier control of ewe genetics (for better mothering ability)

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Benchmarks for a Good Lamb Crop - Ontari

  1. Treatment and ewe condition score significantly influenced lambing percentage with ewes in condition score 3.0 at joining having a lambing percentage of 111% compared with 95% if at condition score 2.3. Irrespective of condition score, ewes grazing Upgraded pastures had a 7% higher lambing percentage than those grazing the Typical pastures
  2. Most feeds will be sold with a declaration of crude protein percentage which should be at least 16-18% in a pre-lambing ration. Protein quality is extremely important so ensure that the ration contains good quality ingredients, ideally soyabean meal, as the main protein source followed by rapeseed meal
  3. These tables contain the nutrient requirements of sheep in pounds and as a percentage of the diet. Table 1 is for mature ewes, Table 2 is for ewe lambs and ram lambs, and Table 3 is for growing and finishing lambs

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  1. Find out how you can increase lambing percentages using scanning best practices. NEW | Class-leading tools for individual livestock management Tell me more Maximise your grass utilisation - use the free grazing calculator now Take me there The 2021 Ranch Management Software Buyer's Guide is here
  2. Gestation Calculator. Standard Breeds (150 Days) Miniature Breeds (145 Days) Date Exposed. Kidding Date Purebred DAIRY GOAT Registry. REGISTER TODAY . We recognize that this society belongs to our members and both the board and the office staff work hard to provide our members with the respect and service they deserve..
  3. A method that farmers may use to calculate lambing percentage is: number of live lambs born 100 lambing percentage = × total number of lambs born 1 The graph shows the effect of the live weight of merino ewes (kg) at the time of lambing on the lambing percentage for a typical sheep property in the central west of NSW. 100 95 Lambing 90.
  4. * Lambing difficulties, Prolapses. When all these are added, e.g. 3-4% empties, 1-2% of other causes, it quickly comes to over 15%. Add in mortality (3% plus) and it is over 20% replacement rate

Give the students out of problems and have them estimate the percentage by visualising. For example, pose six out of 16. Mark six with a paper clip. The students should estimate the percentage as just below 40% or greater than 33.3% (one-third). A calculator can be used to work out the exact percentage by keying in 6 ÷ 16 % Sheep scan display. Timing is an important factor in accuracy - ideally, you want to scan between 70 and 90 days of pregnancy and certainly not less than 55 days or more than 100 days. It's also helpful to starve the ewes for a few hours before scanning so that the rumen is empty. Our scanner, whom we've used since our first lambing in. lambing percentage without increasing inputs. Table 4: Gross Margins with increased or standard inputs. Wool Merino March Lambing May Lambing July Lambing Merino Low Lambing %, High inputs 93% 94% 94% 98% 94% GM /WGHA 147 116 141 103 99 High lambing %, High inputs 75% 121% 121% 125% 121% GM /WGHA 125 152 146 149 14

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Lambing pens should be set up and in place before the first ewe lambs. Lambing pen size is a function of the size of the ewes you have. In 1990 we ran a study comparing 4'x 4' and 4'x 6' lambing pens and determined just what you would think. Small ewes perform equally as well in both sizes of pens in terms of lamb survival There are always losses at lambing season and one or two ewes had a tricky birth, but on the whole it was a good few weeks of extra hard work. At the moment our lambing percentage is 185%. This will change as time goes on since, sadly, there are often one or two lambs who don't survive outside and when the next lot of sheep lamb the. percentage of their energy coming from fat. Food Dry matter Water Carbohydrate starch, sugar, fibre Protein Fat Vitamin Mineral Fig 1. Constituent breakdown of concentrate feed. Energy is the most limiting nutrient in sheep rations. Always ask for the energy content of the ration, before purchase The breeding percentage is calculated using the animals you opened with at the start of the financial year that produce offspring such as MA ewes, 2ths and ewe hoggets. If you want to override the system generated percentages, for example you might buy or sell in lambs ewes part-way through the year, use the Milking/Breeding animals field to.