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drymatterintake, etc ; Holstein; body weight; feeds; forage; mastication; sward; technology; Show all 8 Subjects
Abstract:
... Bite mass is the dry matter ingested per prehension bite. It has previously been reported that sward characteristics such as herbage height, density and allowance can affect bite mass in grazing cows. Animal characteristics such as liveweight and incisor arcade breadth may also affect bite mass. Understanding factors that influence bite mass can lead to an improvement in the estimate of dry matter ...
drymatterintake, etc ; cellulose; digesta; energy; experimental diets; ileum; titanium dioxide; Show all 7 Subjects
Abstract:
... Two experiments were conducted to investigate the influence of age and dietary cellulose levels on the ileal endogenous energy losses (IEEL) in broiler chickens. In experiment 1, a glucose-based purified diet was used to determine the IEEL. Titanium dioxide (5.0 g/kg) was added to the diet as an indigestible marker. Six groups of broiler chickens aged 1 to 7, 8 to 14, 15 to 21, 22 to 28, 29 to 35 ...
drymatterintake, etc ; alfalfa; animals; body weight; cafeterias; excretion; females; forage; Show all 8 Subjects
Abstract:
... Twelve female New Zealand White rabbits were randomly divided into six pairs, based on their body weight. One animal from each pair was allotted to one of the two groups, viz. control and test and housed in the separate cages. All the rabbits were fed concentrate made from left-over of cafeteria and green alfalfa fodder. In test group, 15% concentrate was replaced with the fresh moringa pod. Sitti ...
drymatterintake, etc ; dairy cattle; dairy science; energy; neutral detergent fiber; Show all 5 Subjects
Abstract:
... The objective of this study was to compare the application of iterative linear programming (iteLP), sequential quadratic programming (SQP), and mixed-integer nonlinear programming-based deterministic global optimization (MINLP_DGO) on ration formulation for dairy cattle based on Nutrient Requirements of Dairy Cattle (NRC, 2001). Least-cost diets were formulated for lactating cows, dry cows, and he ...
drymatterintake, etc ; data collection; feed conversion; meat quality; sheep; weight gain; Show all 6 Subjects
Abstract:
... The objective was to evaluate the performance, carcass and meat quality of 40 lambs classified by RFI (residual feed intake) and RIG (residual intake and gain). Dry matter intake (DMI) was recorded to calculate the RFI and RIG, classified as efficient, moderately or inefficient. After the confinement period, they were slaughtered and the carcass and meat quality were determined. The efficient anim ...
Louise F. Martin; Nicole L. Ackermans; Troy N. Tollefson; Patrick R. Kircher; Henning Richter; Jürgen Hummel; Daryl Codron; Jean‐Michel Hatt; Marcus Clauss
drymatterintake, etc ; Oryctolagus cuniculus; diet; herbivores; particle size; regrowth; sand; tooth wear; Show all 8 Subjects
Abstract:
... Among the different factors thought to affect dental wear, dietary consistency is possibly the least investigated. To understand tooth wear of herbivorous animals consuming different dietary consistencies with different abrasive potential, we fed 14 rabbits (Oryctolagus cuniculus) exclusively with a timothy grassmeal‐based diet in either pelleted or extruded form, or the same diets with an additio ...
drymatterintake, etc ; Holstein; cannabinoids; catheters; energy intake; energy metabolism; homeostasis; milk yield; Show all 8 Subjects
Abstract:
... Among the endocannabinoids, N-arachidonylethanolamide (AEA; anandamide) plays a key role in regulating energy homeostasis and energy intake. Recent studies suggest the existence of a peripheral mechanism by which AEA increases feed intake in the short term and modulates whole-body energy metabolism in dairy cows. Here, we aimed to test the hypothesis that AEA has a long-lasting central effect in i ...
Enyew Negussie; Oscar González-Recio; Mara Battagin; Ali-Reza Bayat; Tommy Boland; Yvette de Haas; Aser Garcia-Rodriguez; Philip C. Garnsworthy; Nicolas Gengler; Michael Kreuzer; Björn Kuhla; Jan Lassen; Nico Peiren; Marcin Pszczola; Angela Schwarm; Hélène Soyeurt; Amélie Vanlierde; Tianhai Yan; Filippo Biscarini
drymatterintake, etc ; algorithms; body weight; data collection; diet; methane; milk; milk fat; models; prediction; Show all 10 Subjects
Abstract:
... Direct measurements of methane (CH₄) from individual animals are difficult and expensive. Predictions based on proxies for CH₄ are a viable alternative. Most prediction models are based on multiple linear regressions (MLR) and predictor variables that are not routinely available in commercial farms, such as dry matter intake (DMI) and diet composition. The use of machine learning (ML) algorithms t ...
drymatterintake, etc ; Hereford; Holstein; ad libitum feeding; alfalfa silage; bins (containers); methane; portion size; Show all 8 Subjects
Abstract:
... The objective of the current study was to determine the relationship of daily CH₄ emissions estimated during mealtime compared with measured daily CH₄ emissions, and determine the relationship with feeding behavior, in growing heifers fed alfalfa silage in respiration chambers. Data from 8 growing cattle (Hereford × Holstein-Friesian) individually housed in 4 respiration chambers and fed ad libitu ...
drymatterintake, etc ; Holstein; automation; barley; barns; cows; free stalls; milk; milk composition; milk yield; motivation; Show all 11 Subjects
Abstract:
... Provision of a palatable feed in automated milking systems (AMS) is considered an essential motivating factor to encourage voluntary visits to the milking stall. Although the quantity and composition of AMS concentrates have been previously investigated, the form of the concentrate has not been extensively evaluated. The objective of this study was to evaluate the effects of feeding pelleted (PB; ...
drymatterintake, etc ; alfalfa; average daily gain; beef; corn silage; diet; feed conversion; growth performance; pastures; Show all 9 Subjects
Abstract:
... Over 2 years, 207 steers were fed an alfalfa/corn silage diet to determine growing phase (GP) residual feed intake (RFI) classification (low, medium, and high) for individual cattle. Steers were then allocated to two finishing management regimens (MR): MR 1 cattle gradually adjusted to an 84.7% concentrate (dry matter (DM) basis) diet; MR 2 included backgrounding on pasture before finishing using ...
drymatterintake, etc ; Angus; animal performance; beef; beef cattle; cow-calf operations; cows; hay; profitability; North Dakota; Show all 10 Subjects
Abstract:
... A 4-yr study was conducted to evaluate bale grazing as a winter-feeding system under central North Dakota winter conditions. Two winter-feeding systems, bale grazing (BG) paddocks or dry lot (DL) pen feeding, were compared over 4 winters using nonlactating pregnant Angus cows (2016/2017, n = 32, average BW = 590 ± 69 kg; 2017/2018, n = 40, 609 ± 61 kg; 2018/2019, n = 40, 635 ± 49 kg; 2019/2020, n ...
drymatterintake, etc ; Melia; body weight; diet; ecology; economic analysis; feed conversion; growth performance; pulp; stone fruits; Show all 10 Subjects
Abstract:
... An experiment was conducted to evaluate the effect of replacing basal diet of goat kids with 20% and 40% of Melia dubia Cav. drupe dry pulp to ascertain its effect on body weight, dry matter intake (g day⁻¹), and growth rate, feed conversion ratio and economics of feeding. Twenty four goat kids (average 121 days old and 6.49 kg live weight) were assigned randomly to 0%, 20%, or 40% M. dubia dry pu ...
drymatterintake, etc ; Holstein; automation; body weight; calves; dairy science; forage; grass hay; milk consumption; whole milk; Show all 10 Subjects
Abstract:
... The objective of this study was to assess the effects of intake-based weaning methods and forage type on feeding behavior and growth of dairy calves. Holstein dairy calves (n = 108), housed in 12 groups of 9, were randomly assigned to 1 of 3 weaning treatments: milk reduction based on age (wean-by-age), individual dry matter intake (DMI; wean-by-intake), or a combination of individual DMI and age ...
Gabriela B. Oliveira; Daniel M. Polizel; Analisa V. Bertoloni; Marcos V. C. Ferraz; Alexandre A. Miszura; José P. R. Barroso; André S. Martins; Letícia F. Pasqualino; Janaina S. Biava; Evandro M. Ferreira; Alexandre V. Pires
drymatterintake, etc ; average daily gain; corn; diet; digestibility; feed conversion; fermentation; hay; ionophores; narasin; rumen fermentation; Show all 11 Subjects
Abstract:
... Context Ionophores improve rumen fermentation efficiency, average daily gain (ADG) and feed efficiency. However, the effects of providing ionophores to grazing animals are extremely variable, primarily due to infrequent supplement intake. Aim This study aimed to evaluate the effect of frequency of narasin intake on ruminal fermentation, nutrient digestibility and growth of lambs. Methods In Experi ...
drymatterintake, etc ; body weight; early lactation; energy; lactose; milk; milk yield; parturition; research; secretion; visceral fat; Show all 11 Subjects
Abstract:
... This study aimed to quantify the mobilization of body energy of alpine goats slaughtered at fixed time intervals from parturition to 56 days of lactation. Fifty-one multiparous Alpine dairy goats were used to determine the body composition of the animals. Three goats were slaughtered to estimate the initial body composition of the animals that remained in the experiment. Forty-eight goats were ass ...
drymatterintake, etc ; Eimeria; Hura crepitans; blood; body weight; coccidiostats; creatinine; excretion; oocysts; quantitative analysis; urea; weight gain; Show all 12 Subjects
Abstract:
... To evaluate the anticoccidial effect of the Hura crepitans seed, 21 cross-breed lambs, 23 ± 3 kg live weight (PV) and 70 ± 6 days old, were used. Animals were housed individually in raised wire-mesh pens, with individual water troughs and feeders. Lambs were randomly divided into three groups (n = 7) that received different doses of Hura crepitans seeds: 4 g/kg B.W. (group 1), 6 g/kg B.W. (group 2 ...
drymatterintake, etc ; Holstein; crude protein; digestibility; feed conversion; high carbohydrate diet; milk; milk proteins; nitrogen; rumen; yeasts; Show all 11 Subjects
Abstract:
... Fifteen multiparous rumen-cannulated Holstein cows were assigned to one of five treatments in a replicated 5 × 5 Latin square design. The treatments were low-starch (LS) (22.8 ± 1% of dry matter; DM) without autolyzed yeast (AY; LS0, control), high-starch (HS) (31.2 ± 4% of DM) without AY (HS0), and HS with either 15 g (HS15), 30 g (HS30), or 45 g (HS45) of AY supplementation. Cows in HS0 had incr ...
... Two experiments were conducted to evaluate the merit of wood chips (WCH, Exp. 1) or rice hulls (RH, Exp. 2) as the sole fiber source in a high-concentrate diet fed to early-weaned calves as well as their method of delivery (hand-feeding versus self-feeder). Rations were formulated to contain similar concentrations of N, energy and NDF and were offered ad libitum. In Exp. 1, 36 Hereford calves (84. ...
Hugo Batista Lima; Roberto Germano Costa; Tairon Pannunzio Dias-Silva; George Rodrigo Beltrão da Cruz; Francisco Fernandes Ramos de Carvalho; Ricardo Romão Guerra; Neila Lidiany Ribeiro; José Teodorico de Araújo Filho; Alfredo J. Costa Teixeira
drymatterintake, etc ; absorption; animal health; average daily gain; body weight; feed conversion; intestinal absorption; intestines; morphometry; restricted feeding; Show all 10 Subjects
Abstract:
... A study was carried out to evaluate the performance and ruminal and intestinal morphology of Santa Inês sheep subjected to feed restriction followed by refeeding. A total of 40 uncastrated lambs with an approximate age of 120 ± 15 days and mean body weight (BW) of 17.04 ± 1.18 kg were randomly divided into two groups of BW (20 and 25 kg of BW), which were subjected to different levels of feed rest ...