Evaluation of ketogenic vs. glucogenic substrates as energy sources in starter diets for Holstein dairy calves

2014 ◽  
Vol 94 (4) ◽  
pp. 717-723 ◽  
Author(s):  
H. Beiranvand ◽  
M. Khorvash ◽  
G. R. Ghorbani ◽  
A. Homayouni ◽  
L. Bachmann ◽  
...  

Beiranvand, H., Khorvash, M., Ghorbani, G. R., Homayouni, A., Bachmann, L. and Kargar, S. 2014. Evaluation of ketogenic vs. glucogenic substrates as energy sources in starter diets for Holstein dairy calves. Can. J. Anim. Sci. 94: 717–723. The objective of this study was to investigate the influence of the inclusion of granular sugar and sodium propionate as ketogenic and glucogenic substrates, respectively, in calf starter diets on the performance, weaning age, rumen fermentation characteristics and plasma β-hydroxybutyrate (βHBA). Twenty-one newborn male Holstein calves were housed in individual pens until 10 wk of age, receiving starter ad libitum, fresh water free choice, and fed four liters of pasteurized waste milk daily until weaning. Calves were randomly assigned to one of the following treatments: (1) no supplemental additive (Control); (2) granular sugar (5% of dietary DM; Sugar); and (3) sodium propionate (5% of dietary DM; Propionate). Overall, no differences were observed among treatments for starter intake, average daily gain, feed efficiency, day of weaning, body weight at weaning and at the end of the study. Body measurements including body length, hip height, hip width, and heart girth were remained unchanged among treatments. Ruminal fluid pH (5.36 to 5.58) and concentrations of total volatile fatty acids (93.1 to 101.6 mM), acetate (43.6 to 53.1 mM), propionate (30.5 to 35.1 mM), and ratio of acetate to propionate (1.42 to 1.89) were not affected by treatments over the experimental period. However, the concentration of butyrate was greater at 35 and 70 d of age in calves receiving Sugar compared with calves receiving Propionate, but not compared with the Control. Greater blood βHBA at 45, 60 and 70 d of age was noticed in calves fed Sugar compared with those fed Control and Propionate. In conclusion, according to the concentrations of supplemental ketogenic and glucogenic substrates used in the current experiment, sugar and sodium propionate in starter diets did not improve calf performance.

Animals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3552
Author(s):  
Sabrina de Freitas Vieira ◽  
Sandra Gesteira Coelho ◽  
Hilton do Carmo Diniz Neto ◽  
Hemily Cristina Menezes de Sá ◽  
Barbara Pironi Pereira ◽  
...  

The aim of this study was to evaluate the effects of bulk tank milk (BTM), WM, and PWM on the intake, ruminal parameters, blood parameters, health, and performance of dairy calves. Forty-five male crossbred dairy calves (Gyr × Holstein) were used. On their fourth day of age, animals were grouped according to body weight, serum protein levels, and genetic composition. Three treatments were assessed: BTM (n = 15), WM from cows in antibiotic treatment (n = 15), and PWM via high-temperature, short-time pasteurization (72–74 °C for 16 s) (n = 15). During the experimental period (from 4 to 60 d of age), animals were fed 6 L of milk/d, divided into two equal meals. Water and concentrate were provided ad libitum. Daily measurements were made for milk, concentrate, and water intakes, as well as for fecal and respiratory scores. Rumen fluid and blood were sampled weekly. The following parameters were evaluated: volatile fatty acids (VFAs), pH and ammonia-N in rumen fluid, and β-hydroxybutyrate (BHB) and glucose in blood. Animals were weighed at birth, 4 d of age, and weekly up to 60 d of age. At the end of the experimental period (60 ± 1 d), all animals were euthanized for pulmonary evaluation. The randomized complete design with an interaction between treatment and week was the experimental method of choice for testing the hypothesis of the treatment’s effect on all evaluated outcomes. Animals in the BTM treatment had higher milk dry matter intake (DMI), followed by WM and PWM calves. Concentrate DMI was lower for BTM in comparison to WM and PWM calves. However, total DMI showed no significant differences between treatments. The rumen fluid from calves receiving PWM had higher concentrations of acetate and propionate than that of BTM and WM animals. No differences were observed between treatments for blood glucose and BHB concentrations. Health parameters (fecal and respiratory scores) and pneumonia occurrence showed no significant difference between treatments. No differences were observed for average daily gain (ADG) or body growth. Feeding WM and PWM did not show significant negative effects on the intake, ruminal parameters, blood parameters, health, or performance of dairy calves.


2015 ◽  
Vol 153 (8) ◽  
pp. 1506-1513 ◽  
Author(s):  
A. R. DAVARMANESH ◽  
M. H. FATHI NASRI ◽  
A. R. KALANTARI FIROUZABAD ◽  
M. B. MONTAZER-TORBATI

SUMMARYThe effect on performance of adding calcium (Ca)-butyrate and Oleobiotec (a flavouring agent) additives to dairy calf starter diet was investigated. Thirty-two newborn Holstein calves (16 males and 16 females) were used in a completely randomized design with four treatments as: (1) diet with no additives, (2) diet containing Ca-butyrate, (3) diet containing Oleobiotec and (4) diet containing Ca-butyrate plus Oleobiotec. Milk of calves was supplemented with additives in the first 20 days of the study and then additives were top-dressed into the starter. Calcium-butyrate had no effect on starter and alfalfa intake during pre-weaning, post-weaning and over the whole trial period but it significantly increased the average daily gain and feed efficiency of calves during post-weaning and the whole trial period. Adding Oleobiotec did not change calf performance significantly. Furthermore, no synergistic effect of experimental additives on calf performance was observed.


2020 ◽  
Vol 50 (3) ◽  
pp. 442-451
Author(s):  
M. Niroumand ◽  
K. Rezayazdi ◽  
M. Ganjkhanlou

This study aimed to investigate various levels of crude protein (CP) in starter diets and their supplementation with amino acids (AAs) on efficiency, health, and serum metabolites of dairy calves. Ninety-six newborn Holstein calves were allocated to eight treatments, namely T1) 18% CP unsupplemented starter, T2) T1 supplemented with additional 20% methionine, T3) T1 with additional 20% lysine and 20% methionine, T4) T1 with additional 20% lysine, T5) 22% CP unsupplemented starter, T6) T5 supplemented with additional 20% methionine, T7) T5 supplemented with additional 20% lysine and 20% methionine, and T8) T5 supplemented with additional 20% lysine. Consumption of the starter was not influenced by the level of CP. Calves that received the unsupplemented 22% CP starter had higher average daily gain (ADG) and final weight. But no significant differences among diets were found in feed efficiency. Skeletal growth did not exhibit a clear trend. Calves that received T3 had fewer bouts of diarrhea and reduced body temperature. However, there were no significant dietary effects on immunoglobin G (IgG) or total protein concentration in blood. T1–T3 decreased serum urea concentration. Thus, use of T3 resulted in an improved amino acid balance, and was less expensive than the 22% CP starter.Keywords: amino acid, feed intake, immunity, pre-ruminant calf


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 173-174
Author(s):  
Tianyu Chen ◽  
Jianxin Xiao ◽  
Tingting Li ◽  
Jing Ma ◽  
Zhijun Cao

Abstract To determine the appropriate time to feed hay to calves, 210 healthy Holstein calves at d 2 were randomly divided into 3 groups: feeding basic diet (starter) without hay (CON), inclusion of oat hay from the second week (H2) or fourth week (H4) in addition to the basic diet. All calves were weaned on d 56 and raised in the same hutches until the end of the experiment (d 70). Calf starter intake and fecal score were recorded daily throughout the experimental period. Body weight, body size, blood and rumen fluid samples were collected every 2 weeks before weaning and once a week after weaning. Inclusion of oat hay in the basic diet (H2 and H4) resulted in increased body weight (P < 0.01) and average daily gain (P < 0.01) throughout the experiment when compared to the basic diet (CON) only. Calves fed oat hay from 2 weeks of life had the highest starter intake (P < 0.01), average daily gain (P < 0.01) in the pre- and post-weaning periods. Body length and heart girth was similar between treatments. The H2 calves had lower diarrhea frequency (P < 0.05) and diarrhea days (P < 0.05) during the post-weaning period. Compared to the CON calves, inclusion of hay increased the rumen pH (P < 0.01), while decreasing the NH3-N (P < 0.01) and tend to decrease the total VFA (P < 0.06) during the entire trial. Calves in H2 treatment spent more time ruminating (P < 0.01), but less time standing (P < 0.05), eating starter (P < 0.01) and engaging in abnormal behaviors (P < 0.01). In conclusion, calves supplemented with oat hay improved growth rate and rumen fermentation when compared with calves fed only starter, and adding hay from 2 weeks of calves life may be the best choice for the farm to have the greatest growth and health performance.


2020 ◽  
Vol 60 (8) ◽  
pp. 1018
Author(s):  
S. Yuste ◽  
Z. Amanzougarene ◽  
A. de Vega ◽  
M. Fondevila ◽  
M. Blanco ◽  
...  

Context Good transition from suckling to high-concentrate diets is essential to avoid nutritional disorders during the fattening period of beef calves. Aims Assessing the optimal feeding strategies during the preweaning period of beef calves for an adequate adaptation to high-concentrate diets. Methods A total of 30 female beef calves (15 Parda de Montaña and 15 Pirenaica), managed under restricted suckling, were assigned to three preweaning diets (milk only [MO], milk plus hay [MH], milk plus concentrate [MC]), fed from the third month until weaning at 5 months. During the subsequent transition period (1 month), all animals received a fattening concentrate plus wheat straw ad libitum. Key results Milk intake did not differ among diets; solids intake was similar for MH and MC calves. Preweaning supplementation improved performance at the end of the suckling period (MC > MH > MO). During transition, concentrate intake was lower for MO calves; MH calves showed the lowest feed efficiency. At the end of transition, MC calves showed the highest liveweight and average daily gain (MC > MH = MO). Rumen pH at weaning did not differ from that at the end of transition in MC calves, whereas MH and MO animals showed lower values at the latter. Supplemented calves showed higher volatile fatty acids concentration than MO calves at weaning; MC calves showed the lowest values at the end of the transition period. Ammonia and lactic acid concentration at weaning was the highest for MO and MC calves respectively, with no differences between diets at the end of transition. Glucose and non-esterified fatty acids concentrations were only affected by age; urea and β-hydroxybutyrate were affected by the interaction between diet and age. Economic profitability at weaning was higher for supplemented calves (MH = MC > MO), and ranked MC > MO > MH at the end of the transition. Gains during the suckling period, and hence the economic margin, were higher for Parda de Montaña than for Pirenaica calves; during transition the economic margin was similar. Conclusions Preweaning supplementation with concentrates is the most interesting option in terms of performance and profitability. Implications Preweaning solid supplementation increases calf performance and provides better rumen development, essential for a smooth transition to fattening diets.


Animals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2854
Author(s):  
Jackeline Thais Silva ◽  
Evangelina Miqueo ◽  
Thaís Manzoni Torrezan ◽  
Nathalia Brito Rocha ◽  
Giovana Simão Slanzon ◽  
...  

This study aimed to evaluate the performance and metabolic changes in dairy calves fed in a step-up/step-down program and supplemented with lysine and methionine in a milk replacer (MR) or starter concentrate (SC). Male Holstein calves (n = 45) were blocked and distributed in the control without supplementation (1) and with lysine and methionine supplementation in the SC to achieve an intake of 17 and 5.3 g/d, respectively (2), and in the MR to achieve the same daily intake (3). MR was fed 4 L/d until the 2nd week, 8 L/d from the 3rd to 6th week, and 4 L/d from the 7th to 8th week, when calves were weaned. The calves were followed until the 10th week of age. Feed intake was measured daily. Weight and body measurements were registered weekly, and blood samples were collected biweekly. The lysine and methionine intake during the whole period was higher when supplementation occurred via MR. There was a supplementation effect for average daily gain after weaning, and the animals supplemented in the MR had lower BW than those that were not supplemented. Supplementation in MR decreased starter intake at the 10th week and total intake (g DM/d) after weaning. Supplementation with lysine and methionine in the MR or the SC did not benefit the performance or metabolism of dairy calves in the step-up/step-down program. Further studies are needed to understand the effects of amino acid supplementation on feed intake.


2020 ◽  
Vol 98 (7) ◽  
Author(s):  
Jianping Wu ◽  
Jinsheng Guo ◽  
Ting Liu ◽  
Hao Chen ◽  
Yan Bai ◽  
...  

Abstract Gut health is critically important for growing neonatal calves, and nutritional technologies are needed to prevent disease and stress challenges. Previous work feeding monensin (MON) in combination with an oregano, prebiotic, and cobalt-lactate (EOC) blend had demonstrated improved calf gut health and growth performance. The objective of this study was to evaluate the growth performance of calves fed MON and EOC alone or in combination. Eighty (80) newborn Holstein (37) female and (43) male calves were randomly assigned to one of four treatments arranged in a 2 × 2 factorial (MON and EOC). Treatments were: 1) Control: without MON or EOC added to the calf starter (CS); 2) MON: 50.8 mg/kg CS (Elanco, Greenfield, IN); 3) EOC: 44.1 mg/kg CS (Rum-A-Fresh, Ralco Inc. Marshall, MN); 4) MON + EOC: MON and EOC added to CS. Calves were fed colostrum followed by whole milk through weaning at 42 d, while CS was fed ad libitum through the 70-d experimental period. The MON by EOC interaction was found to be nonsignificant (P > 0.41) for growth performance. Calves fed without or with MON demonstrated similar (P > 0.70) body weight (BW; 68.7 and 68.9 kg without and with MON, respectively), while calves fed EOC demonstrated greater (P < 0.01) BW (67.3 and 70.4 kg without and with EOC, respectively) compared with calves fed without EOC. Calves fed a CS containing MON were similar (P > 0.47) in average daily gain (ADG; 0.88 and 0.91 kg/d) compared with calves fed without MON; however, feeding calves a CS with EOC increased (P < 0.01) ADG (0.84 and 0.95 kg/d) by 13% through the 70-d experimental period compared with calves not fed EOC. Frame measurements indicated that the greater ADG was due to increased (P < 0.10) frame growth for calves fed essential oils (EO) compared with calves fed without EO. A MON by EOC interaction (P < 0.01) for serum propionate concentration demonstrated calves fed MON + EOC and EOC were greater (P < 0.05) compared with calves fed Control, while calves fed MON were intermediate and different (P < 0.05). Feeding calves a CS with EOC increased (P < 0.04) immunoglobulin A, immunoglobulin G, and immunoglobulin M concentrations compared with calves fed without EOC. A MON by EOC interaction was detected (P < 0.01) for total tract starch digestibility for calves fed EOC or MON + EOC demonstrating greater (P < 0.05) starch digestibilities than Control-fed calves. These data demonstrate that EOC and MON fed in combination was not beneficial for enhancing the growth performance, but that calf growth performance can be improved with EOC compared with MON.


1988 ◽  
Vol 68 (4) ◽  
pp. 1155-1161
Author(s):  
H. DEBOER ◽  
R. R. HACKER ◽  
S. LEESON ◽  
V. WAGEMANS

A new commercial hexane-extracted fish meal, Conmar 80, (80% CP) and soy flour were used as protein sources in milk replacer diets for young dairy calves. Three milk replacers, identical in composition except for the diet protein source, were offered in two experiments to Holstein Friesian male calves. The three treatments were: 50% skim milk (SM), 27% whey (W); 22% SM, 47% W, 9% Conmar 80; and 22% SM, 42% W, 15% soy flour. The first experiment compared calf performance parameters and a second experiment compared digestibility parameters for the three diets. A total of 132 Holstein calves were involved in trial 1 and 12 Holstein calves in trial 2. Calf performance, feed efficiency and mortality were not different from controls when Conmar 80 was included as a protein source (36%) in milk replacer. Partial replacement of skim milk powder with soy flour as 37% of the protein source gave lower average daily gains, a higher feed conversion and mortality rate. The digestibility data for all rations were similar. The results indicated that approximately one-third of the protein in milk replacer could be provided by fish protein concentrate in place of skim milk powder without any reduction in calf performance. Key words: Dairy calves, milk replacer, performance, Conmar 80


Animals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 443 ◽  
Author(s):  
Rong Zhang ◽  
Wei-bing Zhang ◽  
Yan-liang Bi ◽  
Yan Tu ◽  
Yves Beckers ◽  
...  

We investigated the effects of different types of early feeding on rumen fermentation parameters and the bacterial community in calves. Fifty-four Holstein calves were assigned to three treatments and fed whole milk (M), pasteurized waste milk (WM), or milk replacer (MR). Male calves were slaughtered at the age of two months to measure the stomach masses. The female calves were followed for six months to determine the body weight, blood indices, rumen fermentation, and ruminal bacterial community. At the age of two months, the average daily gain was lower, but the concentration of total volatile fatty acids was greater in the MR group. Starter intake and stomach mass were lower, but the isovalerate molar proportion was greater in the WM group. The blood indices and ruminal bacterial community of the WM group differed from those of the other groups. At the age of six months, the ruminal propionate molar proportion was lower, but the ruminal pH and acetate/propionate ratio were greater in the MR group. In conclusion, calves fed WM had different rumen fermentation and bacterial community during the weaning period, whereas feeding MR produced a long-lasting effect on the rumen environment.


2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 228-228
Author(s):  
Da Jin Sol Jung ◽  
Jae Sung Lee ◽  
Do Hyun Kim ◽  
Beak Seok-Hyeon ◽  
Soo Jong Hong ◽  
...  

Abstract This study investigated effects of regrouping and oral meloxicam and chromium administration on growth performance, blood cortisol concentrations, and behaviors in dairy calves. Fifty Holstein calves (average age 196 ± 24.7 days, average body weight 198kg ± 32.7 kg) were equally divided into five groups: no regrouping with lactose monohydrate administration (NL), regrouping with lactose monohydrate administration (GL), regrouping with Cr administration (GC), regrouping with meloxicam administration (GM), and regrouping with both meloxicam and Cr administration (GMC). Blood was collected before regrouping and at 3h, 9h, 24h, 1w, and 2w after regrouping. Behaviors have been monitored from d1 to d7. Regrouping did not affect average daily gain (ADG), and the administrations of both meloxicam and chromium increased (P < 0.02) ADG compared to NL group during 2 weeks. Regrouping increased (P < 0.05) plasma cortisol concentrations in GL group, and both meloxicam and chromium and its combination treatments decreased cortisol concentrations compared to GL group at 24h, but not at other times. Regrouping increased (P < 0.05) fight, duration of eating time, head bunt, drinking time, and standing time behaviors in GL group at d1, d2, d2, d3, and d4 respectively. Regrouping also increased (P < 0.05) displacement at eating place in GL group from d3 to d6, but this effect was not significant (P < 0.05) at d7. In conclusion, regrouping caused elevation of plasma cortisol concentrations and abnormal behaviors. Meloxicam, chromium, and/or its combined administrations improved growth performance and reduced circulating cortisol concentrations in regrouped dairy calves, suggesting a feasible strategy to alleviate regrouping stress.


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