Etekcity Food Kitchen Scale EK6015, Digital Grams and Ounces, 11 lb

Why a food scale is on an orthopedic site

Because it is the only purchase on this page that a controlled trial actually supports for hips.

In a lifelong paired-feeding study of 48 Labrador Retrievers, reported in the veterinary literature in 1992 and again in 2006, puppies were paired by sex and weight at six weeks; from eight weeks, one dog in each pair was fed 25% less than whatever its pair-mate ate freely, for life. At two years, using the OFA method on the hip-extended film, 7 of the 24 restricted dogs were graded dysplastic against 16 of the 24 free-fed dogs. Followed to the end of life, the restricted group's median age at first radiographic sign of hip osteoarthritis was 12 years; the free-fed group's was 6.

Nothing in the joint-supplement aisle has a result like that, and the whole intervention was a weighed ration.

What "25% less" does not mean

It does not mean cut your dog's food by a quarter. The restricted dogs ate 25% less than a free-fed littermate, and free-fed Labradors eat a great deal. The target for your dog is a body condition, agreed with your vet and re-checked on a scale monthly. The kitchen scale is the instrument that lets you move the ration in 10 g steps and know the step happened.

The cup problem, measured

The reason the instrument matters was measured in 2019. One hundred dog owners were randomly given a one-cup dry-food measuring cup, a two-cup graduated liquid cup, or a two-cup commercial scoop, and asked to measure a quarter, half and one cup of kibble. Checked against a gram scale, individual accuracy ranged from 47.83% under to 152.17% over, and both the device and the volume changed the error. A dog fed "one cup, twice a day" by the scoop is being fed a different amount by each adult in the house, and possibly by the same adult on different days.

For the puppy whose hips were found loose at 16 weeks

The feeding trial and the only surgery aimed at heading off dysplastic arthritis overlap in time, and that is worth being precise about. The restricted Labradors were fed from eight weeks of age, and the difference showed early: "independent of age at which the radiography was done, there was less subluxation of the femoral heads in the limit-fed dogs," with the first films at 30 weeks. The ration was changing how loose the growing hip was, not only how arthritic the old one became. Juvenile pubic symphysiodesis works on the same growing hip by a different route, fusing a pelvic growth plate so the socket rotates over the ball, and it has to be done before about 18 weeks; the decision is set out on the JPS page. Neither replaces the other. Seven of the 24 restricted dogs were still dysplastic at two years, so feeding did not prevent the disease in a puppy predisposed to it; and no JPS study fed its puppies to a body condition, so the surgery's results were produced without the one lever the household controls. A puppy who qualifies for the surgery gets both. A puppy who is 21 weeks old and missed it gets the scale, which was on time from eight weeks and still is.

The ration moves the grade; it does not move the index

One more result from the same 48 Labradors, published in 2012 after the dogs had lived out their lives, belongs on the page of anyone who has just been handed a hip certificate. Hip-extended films were scored yearly by OFA criteria, a PennHIP distraction index was measured at two years, and the hips were examined under the microscope at natural death. The authors' conclusion: the OFA-criteria score "was profoundly influenced by environmental factors, such as diet restriction and age, reducing its value as a selection criterion," while "DI measurements were not influenced by dietary treatment."

Read plainly: the grade on the certificate is partly a grade of how the dog was fed, and the laxity index is not. Two consequences. A Fair on a lean dog and a Fair on a heavy dog may not be the same hip, so when a breeder's page shows a Good, ask how the dog was raised as well as which scheme scored it. And for your own dog, the ration is the single household variable with a measured effect on the word that ends up in the file. The scale does not choose the ration, and the caveats on this page all still hold, the study was Labradors bred to express the disease and funded by a food company, but the direction of the effect is the one you want.

Who should not buy it

Anyone who already owns a scale with a tare button and gram resolution. Anyone feeding a raw or wet diet in pre-portioned packs, where the portion is already weighed. And anyone hoping the scale will tell them the right amount: it will not, and the bag's feeding chart is a starting point at best.

For a German Shepherd puppy: what the growth curve says

The breed grows fast in its first year and males plateau heavier than females. In the UK primary-care dataset of 12,146 German Shepherds, bodyweight curves built from 24,301 measurements of 4,030 females and 25,420 of 4,052 males showed rapid growth through year one, with a median adult weight of 40.1 kg for males (interquartile range 36.0 to 45.5) and 34.8 kg for females (30.6 to 39.5). Two things follow for the person holding the scale. First, the ration a puppy needs changes every few weeks in that year, so "one cup twice a day" set in March is a different fraction of the dog by June; the gram figure has to be re-set each time the vet re-scores body condition, not once. Second, the upper end of those weight ranges is not a goal: the same population had overweight or obesity recorded as its fourth most common disorder, at 5.18%, and in a separate study of 50,787 neutered dogs, overweight German Shepherds carried a 1.35-fold hazard of death against normal-condition ones. A lean Shepherd at the bottom of the range is the dog the hip data reward. The full breed numbers, including the feeding trial in context, are on the German Shepherd hip dysplasia data page.

Head to head: this scale against the free alternative

The free alternative is the bathroom scale, monthly: weigh yourself, weigh yourself holding the dog, subtract. That tracks the outcome and is worth doing regardless. What it cannot do is make the daily input repeatable, and it fails above about 40 lb of dog for most people's arms. The two are not competitors; the bathroom scale is the monthly check, the kitchen scale is the daily one.

For the dog who cannot get up: the water bowl is the measurement

This is a different job from the ration, and on a dog who cannot walk it may be the more urgent one. A dog who can reach his bowl drinks to thirst and nobody needs to count. A dog who cannot drinks only when someone brings the bowl to his head, which is what the spinal cord injury consortium's nursing tables tell owners to do, and the chronic-phase table sets a floor: water intake of "minimum 50 mL/kg". The tables are titled for hospital management and the floor carries no time unit; we read it as per day, the unit the Merck Veterinary Manual uses for the 44 to 66 mL/kg most mammals need. The Royal Canin Academy review of supportive care for spinal patients explains why the floor matters after a spinal injury: dehydration may reduce blood flow to a cord whose circulation is already compromised at the injury.

The scale turns that floor into a reading. It lists mL as one of its units, and water weighs a gram per millilitre, so either mode gives the same number.

The method: put the filled bowl on, write the number beside the bladder time, and at the next handling weigh it again. The difference is what he drank, less whatever went onto the pad, so look at the pad under the bowl before you write it down. A measuring jug does the same thing for free, and if the house already has one, use it; what the scale adds is that it is one step at 6 in the morning rather than pouring the leftover back out and reading a line. The whole method, including the position he should be in to drink and the signs that something went down the wrong way, is on the page about feeding and water for a dog who cannot stand.

What it cannot do here is weigh the dog. The consortium also asks for his body weight weekly for the first three months, and an 11 lb ceiling rules that out for all but the smallest dogs. That is a bathroom scale (weigh yourself holding him, then subtract) for a dog your surgeon has cleared you to lift, and the clinic scale for everyone else.