Three experiments were conducted to determine the maximal amount of concentrate and forage that could be replaced with a new wet corn milling product. The corn milling product contained 23.1% crude protein, 9.9% ruminally undegradable protein, 13.7% acid detergent fiber, 40.3% neutral detergent fiber, and 2.6% ether extract (% of dry matter; DM). In experiment 1, 16 Holstein cows were assigned ...

Genetic and phenotypic (co)variances for mature equivalent yield of 4% FCM and calving interval were simultaneously estimated by REML for grade Holstein cows in first and second parity. Data were 305d mature equivalent lactation records and calving dates for 299,441 daughters of 2489 AI sires first calving from 1970 to 1985 in California, New York, or Texas. Data were divided into three time pe...

Infusion experiments were conducted with nine lactating dairy cows of the German Black and White breed in mid-stages of lactation, with a daily milk production averaging 20–25 kg fat-corrected milk (FCM). The cows were fitted with rumen and duodenal cannulae. The objective of the study was to investigate the cows’ requirements for leucine and methionine at zero N-balance as supply to the duoden...

This study was conducted to determine a proper feeding regime for lactating Holstein cows during the warm season in Taiwan. In Feeding Trial, 21 lactating Holstein cows were randomly allotted into three feeding regimes in a Completely Randomized Design. The feeding regimes were roughage fed ad libitum along with concentrate fed either twice daily (2C) or four times daily (4C), and total mixed r...

The effects of unsteady electricity supply (power cuts) to an automatic milking system (AMS) on cattle behaviour caused by load management, are crucial for the success of the future farming technologies summarized by ―Integrated Dairy Farming –Stable 4.0‖. The influence of simulated power cuts on adrenocortical activity was assessed by a non-invasive stress monitoring method determining faecal ...

Twenty lactating Ossimi ewes were randomly distributed according to weight and their average milk yield into 4 groups, (5 each). One group fed berseem hay (BH) (Triforum alxanderinum); the second fed, quinoa (QH);  third corn silage(CS), while fourth was  fed silage (QS). All groups offered similar amounts of barley grains (500 g/h/d) as concentrate feed, or ad lib. Results showed that characte...

An experiment was conducted in order to assess the effect of level of RDP:UDP ratio and level of feeding concentrate on milk yield, milk composition and nutrient utilization in lactating crossbred cattle. Twenty four medium producing (~10 kg/d, 45 to 135 days postpartum) lactating crossbred cows were divided into four groups of six animals each in a 2×2 factorial completely randomized design. T...

Holstein cows (n = 58, 21 primiparous), fed corn and wilted grass silages (63:37, DM basis) for free choice consumption, were assigned to control concentrate or supplemented concentrate during wk 1 to 16 postpartum with linted whole cottonseed (15% of projected DMI) alone or with Megalac (.54 kg/d). Our objective was to examine the effects of fatty acids on energy and N balances, total tract di...

this study was conducted to evaluate production response of early lactating cows to rumen protected fats. twelve (nine multiparous and three primiparous) holstein cows (26±4 d in milk) were empolyed in a replicated 3×3 latin square design of 21-d periods. each period consisted of 14 days of adaptation and 7 days of sampling. cows received diets containing either one of two types of protected fa...

The nutritional status and proximate composition, fatty acid profile and mineral composition of milk from 26 wives of army personnel of low income group from Rawalpindi was investigated. The body mass index ranged from 13.5 to 23.7, hemoglobin from 8.6 to 14.8 G/dl, serum protein from 4.8 to 7.5 G and serum albumin from 3.3 to 4.8 G%. Milk protein content varied from 0.6 to 2.4%, fat from 1.0 t...