Target weights for dairy heifers

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August undefined, 2024

WebCalving first-lactation cows at 22 to 24 months of age with an optimal body weight is most favorable for decreasing feed costs for heifer rearing and increasing productive life.2 Calving at this age requires adequate growth rates to attain target weights at breeding and calving. The desired weights at breeding, precalving, and postcalving WebDec 19, 2024 · Holstein heifers should reach 750 to 800 pounds and 48 to 50 inches by breeding age (13 to 15 months). After calving, heifers should weigh 1,137 to 1,296 pounds and measure 52 to 55 inches at the withers. …

Dairy - Target weights for replacement heifers - Teagasc

WebThe weight calculator tool will let you enter the current weight and the target weight of your heifers and will help calculate the growth rate required to achieve your target weight. The … WebMay 1, 2024 · These targets include: 30% of their adult body weight by 6 months-of-age. 60% of their adult body weight at bulling (15 months). 90% of adult body weight when they first … pic of a balanced diet

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Webmortality in preweaned dairy heifers in 1992 and 2007. In these two studies, morbidity was reported at 36.1 and 38.5 percent, respectively, and mortality was reported at 8.4 and 7.8 percent, respectively.1,5 Morbidity and mortality estimates from both studies were higher than the target rates established by the Dairy Calf and Heifer Association ... Webillustrates breeding and calving weight targets for heifers of differing mature size based on desired age at first calving. Table 1. Target weights for dairy animals of differing mature … WebFeb 8, 2016 · In research trials a decade or so ago, they began demonstrating that in commercial conditions, heifers can be managed to a target weight of 55% without … top beach hotels gulf coast florida

The Importance of Meeting Target Weights Zoetis AU

Target weights for dairy heifers

WebFurther, heifers should be weighed at birth, weaning, 6 months, 12 months, pre-calving, and post-calving to determine average daily gain and to ensure heifers are achieving the target weight relative to MBW. Breeding-age heifers should be inseminated quickly when they reach 55% MBW. WebJan 18, 2011 · 4 minute read. Europe. To achieve this target, feeding management must ensure that heifers reach target live weights for breeding at 13.5-15 months of age. Monitoring heifer growth is key to making informed management decisions. A survey of heifer rearing practices undertaken by AFBI and the College of Agriculture, Food and Rural …

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WebApr 11, 2024 · In fact, dairy beef has been a great contributor to the USDA Prime grade. Before the recent increase in carcasses grading USDA Prime (now around 7% to 8%), when native cattle would grade around 3% ... WebOct 15, 2024 · In the dairy industry, we’ve known that a cow gets close to maximum size from 48-54 months. In a 2015 study (see chart), Canadian researchers put the mature size of Holsteins at 1562 lbs. Using 55% of mature weight as a target for breeding, that would lead to a target of 859 lbs. at 13.6 months. The current popular literature has done a great ...

WebOct 25, 2024 · For example, if average cow weight is 1400 lbs and 60% of mature weight by breeding is the goal, heifers need to weigh 840 lbs at breeding. Taking target weight minus current weight divided by feeding period will give you average daily gain needed to reach said target weight. Table 1 completes the example based on a June 1st breeding date. http://pubs.nmsu.edu/_b/B118/

WebWeighing systems and weigh scales are essential for heifer management. Good practice for weighing is every 4-8 weeks, a minimum of every 12 weeks. Younger heifers can benefit … WebAfter calving, heifers should be at 85 to 90% mature body weight and should have achieved 95% of mature structural growth. Knowing your herd’s average weight and height will allow you to accurately set a target weight and height for your growing heifers.

WebIn dairy cows, milk production is positively correlated with size (Lin et al., Reference Lin, Lee, McAllister, Batra, Roy, Vesely, ... Mulliniks and Roberts 2013) concluded that a somewhat lighter-than-usual target weight at breeding (50% to 57% compared with 60% to 65%) reduced rearing costs without impairing future fertility. They thought ...

WebJan 14, 2024 · Posted: 14 Jan,2024 by agriking Category: Dairy Nutrition Tags: heifer body weight, heifer rearing. By Grace Thomas, M.Agr.Sc. P.A.S. ... The target weight for each stage of life is based on the percentages of the mature bodyweight of the animal. The target percentage of the mature body weight versus the age of the heifer is listed in Table 1. pic of abbaWebHeifer liveweight targets. 30% of mature weight at 6 months of age. 60% of mature weight at 15 months (mating) 90% of mature weight at 22 months (pre-calving) Because body … top beach hotels in houstonWebHeifers on Target Calculator. As a rule of thumb, growth rates of 0.6-0.8 kg/day are fairly easy to achieve from pasture alone. Growth rates above 0.8 kg/day may require … pic of abc\u0027sWebJan 25, 2024 · Heifer fertility benchmarks. Target. Age at first breeding. 13.5 months. Weight at breeding. 397 kg. Height at withers. 127 cm. Age at first calving. 24 months. Heifer submission rate >80%. Heifer ... pic of a basketballWebApr 16, 2024 · Frequent weighing of dairy heifers and comparison to target weights is critically important and should be a major component of every farm’s rearing plan. The major targets to benchmark your heifers’ performance is at 6 months (30% of mature bodyweight), 15 months (60% of mature bodyweight) and 22 months (90% of mature bodyweight). top beach hotels in puerto ricoWebPre-calving heifers: 90 to 94% of the dairy herd’s mature body weight; Post-calving (1 st lactation): 80 to 84% of the dairy herd’s mature body weight; Fresh heifers need to be 80 to 84% of the herd’s mature body weight post-calving. This means if the herd’s average body weight of the 3 rd or greater lactation cows over 100 days in milk ... pic of a bearcatWebTarget weight is assumed to be the weight of a heifer at various stages of her growth to achieve a weight at calving which will maximise her productivity and longevity. Research has shown that the desirable weight at first calving is 85% of mature liveweight. Therefore for a herd with an optimal mature weight of 600 kg, the ideal heifer is 510 ... top beach hotels in portugal