Search results
Results from the WOW.Com Content Network
A typical precocial mammal has a gestation period almost four times longer than a typical altricial mammal of the same body size. [20] Precocial mammal species generally have greater adult body weights than altricial mammals as precocial mammals have markedly longer gestation periods than altricial mammals. [21]
However, horses with a low body condition score lack the fat reserves for strenuous work and also may lack lean muscle. [10] Horses with a very high body condition score carry too much weight, which interferes with stamina and biomechanics. Some studies addressed the relationship of body condition score and endurance performance in endurance races.
The horse is considered a "thin animal" (with little fat), whose weight is divided into approximately 11% bone, 50% muscle and 9% fat; [2] but a large number of factors influence its weight. Some breeds ( draft horses ) are naturally heavier than others ( ponies ), and differ in size and bone structure, so the weight range of horses is highly ...
It is possible for high compensatory growth rates to result in overcompensation, where the organism exceeds normal weight and often has excessive fat deposition. [9] An organism can recover to normal weight without additional time. [1] Sometimes when the nutrient restriction is severe, the growth period is extended to reach the normal weight. [1]
As of 2011 in the US, broiler chickens has an FCR of 1.6 based on body weight gain, and mature in 39 days. [25] At around the same time the FCR based on weight gain for broilers in Brazil was 1.8. [25] The global average in 2013 is around 2.0 for weight gain (live weight) and 2.8 for slaughtered meat (carcass weight). [26]
The duration of this period varies between species. For most species, the amount a fetus grows before birth determines the length of the gestation period. Smaller species normally have a shorter gestation period than larger animals. [2] For example, a cat's gestation normally takes 58–65 days while an elephant's takes nearly 2 years (21 ...
Female cattle, also referred to as "heifers" in agriculture, will gradually enter standing estrus, or "standing heat," starting at puberty between 9 and 15 months of age. The cow estrous cycle typically lasts 21 days. [5] Standing estrus is a visual cue which signifies sexual receptivity for mounting by male cattle.
Horses require substantial amounts of clean water every day. Water makes up between 62-68% of a horse's body weight and is essential for life. [15] Horses can only live a few days without water, [14] becoming dangerously dehydrated if they lose 8-10% of their natural body water. [15]