Eight 4-ha mixed warm-season grass pastures in southwestern Arkansas (33°40'4″ N, 93°35'24″ W, and elevation 107 m) were stocked with either large mature size (571 kg [SD 55.2] BW) or small mature size (463 kg [SD 58.2] BW) spring-calving cows at 4 stocking rates (SR; 1, 1.5, 2, or 2.5 cow-calf pairs/ha) over 4 yr to test the effects of SR and mature body size on cow and calf performance and sy...

Abstract The purpose of the study was to determine accessibility ease or difficulty cow farmers in obtaining animal feed. research conducted Air Tenang Village, Karang Baru District, Aceh Tamiang Regency, Province, from January-December 2019. method purposive sampling is a taking with specific purpose, considering that breeder’s sample has necessary information for its research. Respondents wer...

Agolin&#174 Ruminant (Agolin) is a blend of essential oils developed to improve feed efficiency while at the same time reducing rumen enteric methane production. Studies have shown that product improves lactational performance, but range results has been varied. This experiment evaluated effects additive Agolinon milk production in high-component (fat and protein) dairy herd when provided for a...

In contrast to nonruminants, forage-fed ruminants normally absorb very little glucose from their feed. However, glucose supply is still crucial for maintenance and productive functions in ruminants, such as growing and lactating cattle. Glucose supply is especially important for the lactating dairy cow because of the demands of milk synthesis for glucose. Glucose requirements of ruminants are l...

The periparturient cow undergoes a transition from non-lactating to lactating at calving. The animal is tremendously challenged to maintain calcium homeostasis. Those that fail can develop milk fever, a clinical disorder that is life threatening to the cow and predisposes the cow to a variety of other disorders. Less dramatic sub-clinical hypocalcemia can also reduce productivity of cattle by r...

Considerable progress has been made over the last 30 years in the United States to develop systems that describe protein requirements and protein adequacy of diets for dairy cows. Ration formulation systems have moved from balancing diets for crude protein (CP) and digestible protein to the use of nutritional models (e.g., NRC, 2001; CNCPS, CPM-Dairy, and Amino Cow) that recognize that the cow ...

The concept of extended lactation should improve cow health and productivity while reducing greenhouse gas emissions per kg milk produced in high-yield organic dairy herds. This is achieved through fewer calvings per year and hence production of fewer replacement heifers. Combined with fewer days dry per cow per year, this will reduce the annual herd requirement for feed while maintaining milk ...

BACKGROUND The addition of sub therapeutic doses of antibiotics to cattle feed for growth promotion is a contributory factor to antibiotic resistance, thus an alternative to antibiotics is needed in animal feed additives. OBJECTIVE To determine the antimicrobial activity of cow's intestinal Lactic acid bacteria (LAB) against enteric commensals. METHOD Escherichia coli, Klebsiella species (s...