Effects of feed supplementation on growth, blood parameters and reproductive performance in Sanga and Friesian-Sanga cows grazing natural pasture

2018 ◽  
Vol 50 (8) ◽  
pp. 1739-1746 ◽  
Author(s):  
Frederick Y. Obese ◽  
Kwame Dwumah ◽  
Leonard K. Adjorlolo ◽  
Raphael A. Ayizanga
2020 ◽  
Vol 82 (10) ◽  
pp. 1428-1435
Author(s):  
Naoya SASAZAKI ◽  
Takeshi OBI ◽  
Chiharu ARIDOME ◽  
Yoshikazu FUJIMOTO ◽  
Mizuki FURUMOTO ◽  
...  

2013 ◽  
Vol 17 (2) ◽  
pp. 29-36
Author(s):  
Bohuslav Čermák ◽  
Jana Hnisová ◽  
Eva Petrášková ◽  
Kamila Pejchová ◽  
Miloslav Šoch ◽  
...  

Abstract The two farms were conducted experiments with added preparation Biopolym FZT for rearing calves. Additions were applied in the operating conditions where the first farm was gradually calves continuously supplemented to the barn. On the other farm was loading section, and after three months, the calves are picked once. Experimental groups were added preparation Biopolym FZT to supply water for the entire group. The first attempt to farm the results were not significant due to the occurrence of diarrheal disease. In the second company in the experimental group were found higher weight + 0,141kg/day gains than control groups. Between the detected blood parameters in the control and experimental groups was not statistically significant. The results were within the reference range. The tendency Impairment of copper in the blood heifers are similar within the region and in the future could have an adverse effect on reproductive performance. On the data logger ammonia and carbon dioxide, located in the barn were no significant differences in measured values. Values of N-compounds in the feces of calves in both were statistically significant. There was a certain tendency in reducing the average values of N-compounds in experimental groups of calves.


2015 ◽  
Vol 14 (3) ◽  
Author(s):  
Hosna Hajati ◽  
Ahmad Hassanabadi ◽  
Abolghasem Golian ◽  
Hassan Nassiri-Moghaddam ◽  
Mohammad Reza Nassiri

In this experiment, the effect of hydroalcoholic grape seed extract (GSE) and vitamin C feed supplementation on some blood parameters and heat shock protein 70 (<em>HSP70</em> gene) expression of broiler chickens suffering from chronic heat stress was investigated. Experimental diets included control diet (with no additive), 3 levels of GSE (150, 300, 450 mg/kg), and one level of vitamin C (300 mg/kg). Each diet was fed to 5 replicates of 12 male chicks each, from d 1 to 42. The birds suffered from chronic daily heat stress under 34±1°C temperature with 65 to 70% relative humidity for 5 h from 29 to 42 d of age. Results showed that 300 mg/kg GSE supplementation increased body weight of broilers both before and after heat stress condition (at 28 and 42 d, respectively). Also, birds fed 300 mg GSE/kg diet had higher European production efficiency factor during the whole period of the experiment. Supplementation of GSE decreased the concentration of serum glucose at 28 and 42 d; at 42 d (during heat stress condition) and at 450 mg/kg diet it decreased cholesterol, triglyceride, lowand very low density lipoprotein concentration of serum blood. Vitamin C supplementation decreased serum cholesterol concentration of broilers suffering from heat stress. <em>HSP70</em> gene expression in heart and liver of broilers reduced by GSE and vitamin C supplementation pre- and during chronic heat stress condition.


1990 ◽  
Vol 50 (1) ◽  
pp. 1-10 ◽  
Author(s):  
J. D. Armstrong ◽  
E. A. Goodall ◽  
F. J. Gordon ◽  
D. A. Rice ◽  
W. J. McCaughey

ABSTRACTFive randomized-block experiments were carried out over 2 years using British Friesian cows managed as three separate herds. The effects of offering cows different levels of concentrates, ranging from 0·8 to 7·2 kg/day, in addition to grass silagead libitumduring the winter period on reproductive performance was investigated. The effects of substituting 4 kg/day maize gluten, or 0·8 kg/day fish meal, for part or all of the standard concentrate were also examined.Neither level of concentrates nor the inclusion of maize-gluten meal significantly affected reproductive performance even where milk production and quality was considerably influenced. The inclusion of fish meal improved conception rates to all services (0·64v.0·44;P< 0·05) and reduced the number of services required per conception (1·62v.2·31;P< 0·01).Plasma urea levels were raised consistently by the feeding of fish meal and, with the exception of weeks 2 and 6 of lactation, by the feeding of higher levels of concentrates. From the 6th week of lactation levels of beta-hydroxybutyrate (BHB) in the blood were significantly higher in the group of cows receiving the highest level of concentrates. The BHB level at week 6 was correlated with the number of services required per conception.A number of relationships between production factors and fertility are also presented.


2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 73-74
Author(s):  
Emily G Hayes ◽  
Lauren Stevens ◽  
Shaneqwa Thomas ◽  
Kaylee Hurt ◽  
Richard Browning

Abstract This study examined the influence of creep feeding and sire breed on post-weaning replacement doeling traits. Over 3 years, doelings by Kiko, Myotonic, Spanish and Savanna sires were creep-fed (CF; n = 116) for 60 d or not creep-fed (NC; n = 117). Sire breeds were balanced across creep treatments. Doelings were weighed at 3 mo old (weaning) and various postweaning ages. Doelings entered the breeding herd at 18 mo of age and fitness traits recorded. At 3-, 6-, and 12-mo of age CF (14.7 ± 0.6, 19.3 ± 1.2, and 24.6 ± 0.9 kg, respectively) were heavier (P &lt; 0.05) than NC (13.8 ± 0.6, 17.9 ± 1.2, and 23.6 ± 0.9 kg, respectively). Treatment did not affect 18-mo weights. Sire breed did not affect 3-mo weight. Sire breed influenced (P &lt; 0.05) 6-, 12-, and 18-mo weights. Myotonic-sired doelings were lightest (P &lt; 0.05) and Kiko-sired doelings were heavier (P &lt; 0.05) than Savanna-sired. Breed x treatment interacted (P &lt; 0.05) for survival to 18 mo of age. Kiko-sired CF doelings had a higher (P &lt; 0.05) survival rate than Savanna-sired CF (88.6 ± 6.0% vs. 44.6 ± 11.5%). Breed did not affect survival rate (P&gt; 0.05) within the NC group. As a main effect, CF had a higher (P &lt; 0.05) survival rate than NC (81.5 ± 6.3% vs. 65.6 ± 8.7%). Sire breed affected (P &lt; 0.05) reproductive output. Cumulative kid crop weaned across the first 2 breeding years for the whole weaned doeling population was higher (P &lt; 0.05) for Myotonic- and Kiko-sired (1.4 and 1.2 ± 0.2 kids) does than Savanna-sired (0.5 ± 0.1 kids). Creep feeding did not affect reproductive output. Creep feed supplementation and sire breed influenced post-weaning doeling weights. Only sire breed affected reproductive performance of the young does.


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