scholarly journals Organic supplementation of Cu and Se in the diets of Normande dairy cows

2020 ◽  
Vol 26 (1) ◽  
pp. e1983
Author(s):  
Pedro N. Rodriguez-Hernandez ◽  
Diana Cediel-Devia ◽  
Román David Castañeda-Serrano
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Experimental Period ◽  
Milk Quality ◽  
Blood Metabolites ◽  
Reproductive Parameters ◽  
Mineral Supplementation ◽  
Organic Copper ◽  
Inorganic Mineral ◽  
Organic Minerals

Objective: to evaluate the effects of organic copper (Cu) and selenium (Se) on milk production, milk quality and reproductive parameters of Normande dairy cows. Materials and methods: 36 multiparous cows (BW = 600 ± 32 kg) were used, distributed in completely randomized blocks. Treatments were: T0: without mineral supplementation, T1: inorganic mineral supplementation with Cu and Se, T2: 50% Inorganic supplementation + 50% organic supplementation, with an experimental period of 150 days (30 days before calving and 120 days of lactation). The variables evaluated were milk production and quality (total solids, proteins, fat, somatic cells and MUN), blood metabolites (glucose, betahydroxybutyrate and BUN) and reproductive parameters (open days, days to first service and services per conception). Results: No differences were observed in milk production and quality (P> 0.05). However, open days and services per conception were shorter when cows were supplemented with organic minerals (P <0.05). Conclusions: In this study milk production, milk quality and blood metabolites were not affected by supplementation with Se and Cu. However, the reproductive parameters of the cows improved when supplemented with organic Se and Cu.

scholarly journals Effect of rumen-protected methionine, lysine or both on milk production and plasma amino acids of high-yielding dairy cows

2009 ◽  
Vol 54 (No. 6) ◽  
pp. 239-248 ◽  
Author(s):  
J. Třináctý ◽  
L. Křížová ◽  
M. Richter ◽  
V. Černý ◽  
J. Říha
Keyword(s):  
Amino Acids ◽  
Dairy Cows ◽  
Milk Production ◽  
Latin Square ◽  
Experimental Period ◽  
Blood Metabolites ◽  
Plasma Amino Acids ◽  
Maize Silage ◽  
Beta Casein ◽  
Copolymer Coating

The objective of this study was to determine the effect of supplemental lysine (Lys), methionine (Met) or both amino acids added in the form of rumen-protected (RP) tablets with copolymer coating to a diet of dairy cows on yield and composition of milk and concentration of plasma amino acids (AA). The experiment was carried out on four high-yielding lactating Holstein cows with average milk production of 33.5 kg/day in the form of Latin square design. The four treatments were as follows: C – control without AA supplementation, L – control plus supplement of RP Lys, M – control plus supplement of RP Met and ML – control plus supplement of RP Met and Lys. The experiment was divided into 4 periods. Each period (14 days) consisted of 10-day preliminary period and 4-day experimental period. Cows were fed a diet based on maize silage, lucerne hay and supplemental mixture. Average milk yield recorded in ML was 34.18 kg and was higher than that recorded in L or M (32.46 kg and 32.13 kg, respectively <I>P</I> < 0.05) and tended to be higher than in C (33.33 kg, <I>P</I> > 0.05). The content of protein and casein was higher in L and ML in comparison with C (<I>P</I> < 0.05) and tended to be higher than in M (<I>P</I> > 0.05). Protein yield in ML (1 054 g/day) was higher than that found in C, L or M (990, 998 or 968 g/day, respectively, <I>P</I> < 0.05). The same response was found for casein yield (<I>P</I> < 0.05). Although the proportion of individual casein fractions was not affected by the treatment, the yield of &alpha;- and &beta;-casein differed (<I>P</I> < 0.05) while the yield of &kappa;-casein was not affected by the treatment. Concentrations of blood metabolites, except for betahydroxybutyrate (BHB), were not changed. Plasma Met concentrations were increased (<I>P</I> < 0.05) in the M and ML group. Similar, but insignificant increases (<I>P</I> > 0.05) were also observed in plasma Lys in the L and ML group.

Rice water in feeding of Holstein dairy cattle

2002 ◽  
Vol 2002 ◽  
pp. 154-154
Author(s):  
Teimouri Yansari A. ◽  
R. Valizadeh ◽  
A. Nasserian
Keyword(s):  
Dairy Cattle ◽  
Dairy Cows ◽  
Milk Production ◽  
Large Volume ◽  
Blood Metabolites ◽  
Gross Energy ◽  
Animal Feeding ◽  
Rice Water

Nearly 2.4 million tons of rice is consumed by Iranian(37kg/person/year). Generally, in rice cocking process the grain is boiled and drained and a large volume of rice water is produced. Rice water is content of 5%DM, 0.43% CP, 3.75% NFE and almost 2 Mcal/KgDM gross energy. This liquid as a product of drained processing can be utilized in animal feeding (Valizadeh et al. 2000). Two studies carried out to evaluated the differences levels of rice water and its effects on milk production, rumen and blood metabolites of dairy cows.

scholarly journals PSXI-1 Effects of mineral supplementation during summer on physiological variables and milk production in Holstein dairy cows

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 389-389
Author(s):  
Andrea Dahnae del Rio-Aviles ◽  
Abelardo Correa-Calderon ◽  
Leonel Avendaño-Reyes ◽  
Milton G Thomas ◽  
R Mark Enns ◽  
...  
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Milk Production ◽  
Treatment Time ◽  
Holstein Cows ◽  
Productive Performance ◽  
Negative Effects ◽  
Physiological Variables ◽  
Northwest Mexico ◽  
Mineral Supplementation

Abstract Summer season in northwest Mexico is characterized by hot-humid weather conditions that lead to heat stress and affect physiological and productive performance of lactating Holstein cows. Mineral supplementation has been proposed as strategy to alleviate negative effects of heat stress in dairy cattle. Thus, the objective of this study was to evaluate the effect of an injectable mineral supplement on physiological variables and milk production in Holstein cows managed during summer. Sixteen cows were randomly assigned to 1 of 2 experimental groups: Mineral-treated (TRT; n = 8) or control (CON; n = 8). The TRT group received 3 injections of Fosfosan® (10 ml, i.m., Virbac, Uruguay), on days 0, 7 and 17, considering summer onset as day 0 (June 21st), whereas group CON was untreated. Physiological variables such as respiratory rate (RR), vaginal temperature (VT) and skin-surface temperature (SST), were registered twice a week (0500-1700 h) during 6 weeks. Ambient temperature and humidity were collected to calculate the daily temperature and humidity index (THI). Data were analyzed using a mixed model with repeated measures, which included fixed effects of treatment, time and treatment*time, and sire as random effect. According to the THI, Holstein cows were exposed to heat stress during the experiment (&gt;72 units). Cows in the TRT group showed higher (P &lt; 0.05) milk production than CON cows (17.93±0.47 vs 17.02±0.51 kg/day) and lower (P &lt; 0.01) VT (39.14±0.11 vs 39.46±0.15 °C). Relative to CON cows, treated cows also had lower RR (63.16±0.65 vs 64.47±0.76 breaths/min) and lower SST (33.75±0.15 vs 34.02±0.16 °C). All physiological variables showed a significant effect of time (P &lt; 0.01). In conclusion, mineral supplementation during summer appears to improve physiological and productive performance in heat-stressed milking dairy cows; therefore, we suggest to consider this management as strategy to reduce negative effects of summer and heat stress on the dairy industry in northwest Mexico.

scholarly journals Effect of Harvest Time and Microbial Anaerobic Fermentation at Ruminal Degradability, In Vitro Digestibility to Milk Production and Milk Quality for Whole Plant Zhang Hybrid Millet in Dairy Cows

Animals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 749
Author(s):  
Yujia Tian ◽  
Xuewei Zhang ◽  
Shengli Li ◽  
Kai Liu ◽  
Peng Guo
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Anaerobic Fermentation ◽  
Milk Quality ◽  
In Vitro Digestibility ◽  
Harvest Time ◽  
Ruminal Degradability ◽  
Alternative Feedstock

This study assessed whether harvest time and microbial anaerobic fermentation could affect ruminal degradability and intestinal digestibility of whole Zhang hybrid millet, and estimate the effect of microbial anaerobic fermented whole Zhang hybrid millet as feedstuff on milk yield and milk quality. Protein degradation and intestinal digestion were determined using in situ nylon bag technique and three-step in vitro method, respectively. Results showed that harvest time, microbial anaerobic fermentation, or their interaction significantly affected EDDM, EDCP, and EDNDF (p < 0.05). In vitro fermentation was significantly influenced by harvest time. Early harvested samples appeared to have higher Total volatile fatty acid (TVFA) and lower acetate: propionate ratio than late harvested ones (p < 0.01). However, significant effect of harvest time and fermentation was failed to find in the estimation of rumen-undegradable protein (RUP) (p > 0.05). Microbial anaerobic fermented whole Zhang hybrid millet as feedstuff provided similar milk compositions compared with controls, and it significantly reduced SCC (p = 0.04). Milk yield was numerically higher in whole Zhang hybrid millet groups. In conclusion, harvest time and microbial anaerobic fermentation could further improve ruminal utilization of whole Zhang hybrid millet. Whole Zhang hybrid millet could be an alternative feedstock for dairy cows with acceptable safety profile and potential benefit in milk production.

Effect of substituting barley with glycerol as energy feed on feed intake, milk production and milk quality in dairy cows in mid or late lactation

2018 ◽  
Vol 209 ◽  
pp. 25-31 ◽  
Author(s):  
Charlotte Gaillard ◽  
Martin Tang Sørensen ◽  
Mogens Vestergaard ◽  
Martin Riis Weisbjerg ◽  
Mette Krogh Larsen ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Feed Intake ◽  
Milk Quality

The effect of delaying the introduction of concentrates on the summer milk production of hay-fed dairy cows

1969 ◽  
Vol 9 (36) ◽  
pp. 66
Author(s):  
JC Radcliffe
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Experimental Period ◽  
Percentage Composition ◽  
Treatment Groups ◽  
Basal Ration ◽  
Friesian Cows

From November 23, 1965, concentrates were introduced successively at two-week intervals to five treatment groups of grade Friesian cows that were being fed a basal ration of cereal hay in the paddock. The yield of milk, butterfat, solids-not-fat, and protein rose significantly as the supplements were introduced but almost no significant effect of concentrate feeding was observed on the weekly percentage composition tests of the milk. A comparison of the total covariance corrected yield results for the experimental period from November 23, 1965, to March 15, 1966, showed that the group of cows receiving concentrates throughout produced 30 per cent more milk, and 29 per cent more solids-not-fat, but only 24 per cent more protein and butterfat than the group receiving concentrates from January 18, 1966. However, the additional milk production would be uneconomic where milk is purchased on a butterfat basis.

scholarly journals In vivo effect of diflubenzuron, administered via mineral salt supplementation, against Haematobia irritans and Rhipicephalus microplus parasitizing cattle

2018 ◽  
Vol 27 (4) ◽  
pp. 545-554
Author(s):  
Breno Cayeiro Cruz ◽  
Lucas Vinicius Costa Gomes ◽  
Willian Giquelin Maciel ◽  
Gustavo Felippelli ◽  
Isabella Barbosa dos Santos ◽  
...  
Keyword(s):  
Experimental Design ◽  
Experimental Period ◽  
Field Trials ◽  
Rhipicephalus Microplus ◽  
Mineral Salt ◽  
Reproductive Parameters ◽  
Main Trial ◽  
Haematobia Irritans ◽  
Mineral Supplementation

Abstract This study involved two field trials with the aim of evaluating the efficacy of diflubenzuron, via mineral supplementation, against Haematobia irritans parasitizing cattle. Concomitantly with the main trial, a stall test was conducted to ascertain the effects of a different formulation with the same active ingredient against Rhipicephalus microplus, along with the action of diflubenzuron on the reproductive parameters of R. microplusfemales that had naturally detached from cattle. Against H. irritans, it was observed that the efficacy indexes fordiflubenzuron were low (≤ 31.3% or 44.6%) or null (0.0%) throughout the study. The anti- R. microplus efficacy of diflubenzuron, at weekly intervals, ranged from 0.0 to 13.7% over the entire experimental period. Null efficacy (0.0%) was registered for diflubenzuron in relation to the reproductive parameters of R. microplusfemales that had naturally detached from cattle. The different diflubenzuron formulations, administered via mineral salt supplementation, did not show satisfactory efficacy indexes against H. irritans and R. microplus parasitizing cattle, within the experimental design of the present study. In addition, this agent did not present any deleterious effects on the reproductive parameters of R. microplus females.

scholarly journals Effects of Feed Delivery Time on Feed Intake, Milk Production, and Blood Metabolites of Dairy Cows

2008 ◽  
Vol 91 (11) ◽  
pp. 4249-4260 ◽  
Author(s):  
A. Nikkhah ◽  
C.J. Furedi ◽  
A.D. Kennedy ◽  
G.H. Crow ◽  
J.C. Plaizier
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Feed Intake ◽  
Blood Metabolites ◽  
Delivery Time

scholarly journals The effect of incomplete milking or nursing on milk production, blood metabolites, and immune functions of dairy cows

2012 ◽  
Vol 95 (11) ◽  
pp. 6503-6512 ◽  
Author(s):  
E. Carbonneau ◽  
A.M. de Passillé ◽  
J. Rushen ◽  
B.G. Talbot ◽  
P. Lacasse
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Blood Metabolites ◽  
Immune Functions
Sign in / Sign up

Export Citation Format

Share Document