Sheep were used to determine the effects of dietary supplementation with readily-fermentable carbohydrates on Mg, Ca, K and P utilization. In each of two metabolism trials, 15 mature, crossbred wethers (average weight, 49.2 kg) were allotted to five dietary treatments consisting of 800 g/d of orchardgrass (Dactylis glomerata, L.) hay alone, or supplemented with 450 g/d of either glucose, sucros...

The aim of this review is to summarize the current knowledge of methane (CH4) production from ruminants. The objectives are to identify the factors affecting CH4 production. Methane is a potent greenhouse gas (GHG). Ruminant livestock constitute worldwide the most important source of anthropogenic emissions of methane. There are two main factors influencing global warming change, an increase in...

A TOTAL of 28 crossbred wethers were used in two experiments to determine the digestibilty of hydrogenated tallow-, saturated fatty acidsand soybean oil-supplemented diets. Digestibility values for individual fats were determined by subtracting from total dietary lipid and fecal output the dietary and fecal lipids measured with basal diets. In the first experiment addition of 3% flaked, hydroge...

Texel sheep were imported from Finland and Denmark for evaluation as a terminal sire population relative to the Suffolk breed. The objective was to estimate effects of sire breed on fitness, growth, and compositional traits of crossbred progeny that were serially slaughtered at 63, 105, 147, and 189 d of age. A total of 325 lambs, sired by 19 Texel and 20 Suffolk rams, were born to mature, half...

The objectives of the present study were to evaluate the effects of scrotal insulation on sperm production, semen quality, and testicular echotexture in Bos indicus and Bos indicus x Bos taurus crossbred bulls. In one experiment, B. indicus bulls (n=12) were allocated to control and whole-scrotum insulation groups, while in a second experiment, crossbred bulls (n=21) were allocated into control...

Breeding intact boars is a promising alternative to surgical castration of piglets. Genetic selection should enable farmers to solve problems due to boar taint and aggressiveness while taking into account potential consequences on other traits of interest. The aim of the study was to estimate genetic relations between sexual development, boar taint, health, and aggressiveness. About 1,600 Pietr...

the study was carried out on 120 crossbred holstein × shahiwal dairy cows for a period of 150 days to quantify the influence of dietary energy and protein intake on yield and composition of milk. total 12 dairy farms having similar housing systems and holding at least 20 dairy cows in between mid to late lactation were selected for study purposes. the farms were located in the peri-urban and ur...

Population genetic parameters, direct and maternal breeding value, the trend in weaning weight of Limousin beef cattle calves were estimated period 1992-2019. Data 19 764 (15 437 purebred 4 327 crossbred) computed. Crossbred sired by bulls from Simmental dams. Calves question came 37 herds 240 sires Hungary. DFREML MTDFREML software was used for estimation population BLUP animal model value est...

Our research aimed to analyse the current state of sheep industry in Ukraine, highlight geographical location genetic resources, describe breeding work, and form proposals for development this branch future. The date from State register farms 2005-2019 statistical reporting were used analysis. It is shown that Ukraine has good natural climatic preconditions, as well customer demands industry. I...