Determination of Milk Production Characteristics, Phenotypic, Genetic and Environmental Trends in Jersey Cattle

In order to kick-start milk production and upgrade genetic base of local zebu cattle at the University of Ibadan, four in-calf Jersey heifers and one bull were acquired in September 2012, from a pure herd of Jersey cattle maintained on a private farm in Shonga, Kwara State, Nigeria. Management at Shonga was based on an intensive, zero-grazing system. The animals were apparently in a good state of health at the time of procurement. At the University of Ibadan, management was also intensive, with partial grazing, fortified grass silage and concentrates supplementation. Health management of Jersey cattle involved preventive and curative measures. Calving occurred within 7 and 156 days of arrival at Ibadan. Two out of four heifers calved successfully while two had still-births. Calves were allowed to suckle their dams for 14 days after calving and bottle-fed from milk collected from their dams afterwards. Milking was done twice daily at 7am and 4pm using a portable milking machine. Milk yield averaged 8.8 kg/cow/day with lactation length ranging between 93 and 246 days. Average composition of milk was 13.69, 3.60, 4.73, 0.65 and 4.71% for total solids, protein, fat, ash and carbohydrate respectively. In order to maximize milk production from Jersey cattle under the humid tropical condition of Ibadan, there is need to maintain a high plane of nutrition, adopt a preventive healthcare system and incorporate a cooling system to ameliorate the effects of high ambient temperatures.Key words: calving age, dairy cattle, lactation length, milk composition, milk yield

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Single Nucleotide Polymorphism in the Promoter Region of the IGF-1 Gene is Associated with Milk Production in Holstein and Jersey Cattle – Is the Aspect of Present Research Still Relevant in the Era of Genomic Selection?

Pakistan Journal of Zoology ◽

10.17582/journal.pjz/20191208211212 ◽

2020 ◽

Author(s):

Ewa Czerniawska-Piątkowska

Keyword(s):

Single Nucleotide Polymorphism ◽

Genomic Selection ◽

Milk Production ◽

Promoter Region ◽

Nucleotide Polymorphism ◽

Single Nucleotide ◽

Jersey Cattle

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Effects of plant density and proportion on the interaction between wheat with alexandergrass plants

Bragantia ◽

10.1590/s0006-87052011000100007 ◽

2011 ◽

Vol 70 (1) ◽

pp. 40-45 ◽

Cited By ~ 4

Author(s):

Leonardo Bianco de Carvalho ◽

Pedro Luis da Costa Aguiar Alves ◽

José Valcir Fidelis Martins

Keyword(s):

Growth And Development ◽

Plant Density ◽

Block Design ◽

Dry Mass ◽

Wheat Crop ◽

Replacement Series ◽

Mixture Experiment ◽

Randomized Complete Block Design ◽

Production Characteristics

Determination of competitive relationships among plant species requires appropriate experimental designs and method of analysis. The hypothesis of this research was that two species growing in coexistence show different growth and development due to their relative competitiveness. This research aims to measure the relative competitiveness of wheat crop compared to Alexandergrass by the interpretation of plant density and proportional effects using replacement series experiments. Monocultures were cultivated in densities of 1, 3, 5, 10 and 15 plants per pot and analyzed by regression of dry mass data. Mixture experiment was cultivated in wheat:Alexandergrass proportions of 0:6, 1:5, 2:4, 3:3, 4:2, 5:1 and 6:0 plants per pot and analyzed by graphical interpretation of growth and production characteristics. Both experiments were carried out in randomized complete block design with four replicates. Alexandergrass was more sensitive to intraspecific competition than wheat. Alexandergrass was lightly more competitive than wheat. Number and weight of spikes and number of tillers were the wheat characteristics more affected by Alexandergrass interference.

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The production characteristics of the indigenous Imroz and Kivircik sheep breeds in Turkey

Animal Genetic Resources Information ◽

10.1017/s1014233900001735 ◽

2004 ◽

Vol 34 ◽

pp. 57-66 ◽

Cited By ~ 5

Author(s):

A. Yilmaz ◽

M. Ozcan ◽

B. Ekiz ◽

A. Ceyhan ◽

A. Altine

Keyword(s):

Growth Rate ◽

Body Weight ◽

Milk Production ◽

Growth Rates ◽

Survival Rates ◽

Growth Characteristics ◽

Marmara Region ◽

Sheep Breeds ◽

Survival And Growth ◽

Production Characteristics

SummaryThis study was carried out to investigate the fertility, milk production and body weight of ewes and the survival and growth characteristics of lambs of the indigenous Imroz and Kivircik sheep breeds. The Imroz and Kivircik sheep breeds are included among the genetic resources in the project for the conservation of the indigenous breeds in Turkey.Conception rates for Imroz and Kivircik ewes were 57.6% and 81.7% respectively, litter sizes were 1.2 and 1.2 respectively, milk yields were 89 kg and 62 kg respectively and average live weights (2–7 years of age) were 43 kg and 55 kg, respectively. Imroz and Kivircik lambs had survival rates at weaning (90th day) of 98% and 96%, birth weights of 3.3 kg and 4.1 kg and weaning weights of 19.8 kg and 28.0 kg, respectively.The results showed that the Kivircik sheep were heavier and the lambs had a better growth rate until weaning than the Imroz breed. However, the milk production of the Imroz ewes was higher than that of Kivircik. The lambs of both breeds had a satisfactory survival and growth rates until weaning and these results might be regarded as a desired adaptation of the Imroz and Kivircik lambs to the environmental conditions of the Marmara Region.

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The comparison between nylon bag and gas production method, use of regression equations in determination of feedstuffs nutritive value

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200021141 ◽

2007 ◽

Vol 2007 ◽

pp. 211-211

Author(s):

Ali Mahdavi ◽

Ali Nikkhah ◽

Fatemeh Alemi

Keyword(s):

Nutritive Value ◽

Production Method ◽

Gas Production ◽

Chemical Components ◽

Regression Equations ◽

Evaluation Systems ◽

Ruminal Degradation ◽

Production Characteristics

The in situ technique forms the basis of many feed evaluation systems for ruminants. Although this method is widely used, the NBT is very laborious, time-consuming, and incubations and analyses of the feed residues often last several weeks. Therefore, several other techniques have been investigated to measure and predict ruminal degradation of various chemical components of feedstuffs. The aim of this study is to investigate the possibilities of estimating in situ degradation characteristics of DM, CP, ADF and NDF in several feedstuffs by gas production characteristics and chemical composition.

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Management Practices and Milk Production in Dairy Donkey Farms Distributed Over the Italian Territory

Macedonian Veterinary Review ◽

10.1515/macvetrev-2017-0016 ◽

2017 ◽

Vol 40 (2) ◽

pp. 131-136 ◽

Cited By ~ 6

Author(s):

Francesca Dai ◽

Giulia Segati ◽

Emanuela Dalla Costa ◽

Faith Burden ◽

Andrew Judge ◽

...

Keyword(s):

Animal Welfare ◽

Milk Production ◽

Management Practices ◽

Southern Europe ◽

Limited Information ◽

Animal Management ◽

Single Person ◽

Tactile Contact ◽

Italian Territory ◽

Production Characteristics

AbstractLimited information is available about the actual management characteristics of dairy donkeys in Southern Europe. The aim of the present study is to describe animal management of dairy donkey farms in Italy. Twelve farmers were asked to answer a questionnaire on the management of their animals and their farms distributed over the Italian territory. Six farms grouped their animals in paddocks according to the production characteristics (e.g. lactating, dry, stallions); three farms housed the stallions in single boxes. Most of the visited farms were family run and the number of animals cared for by a single person varied from five to 103 animals. All the farms but one performed mechanical milking with a modified goat milkmaid. Vaccinations were regularly performed only on two farms. All the foals received colostrum and suckled from their own mothers. Foals were nursed by their mother until 6-12 months old. During the separation period before milking, foals were usually (83%) housed in paddocks near their mothers with the possibility of visual and/or tactile contact, however such separations could be for up to 12 hours (17%). Even though the assessed sample was small, considerable differences were seen between farms, likely due to lack of uniform information available for the farmers. The adoption of scientific based procedures is suggested in order to improve both animal welfare and milk quality.

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Production characteristics of the Jamaica Hope breed of dairy cattle

The Journal of Agricultural Science ◽

10.1017/s002185960001755x ◽

1970 ◽

Vol 74 (3) ◽

pp. 463-468 ◽

Cited By ~ 5

Author(s):

K. E. Wellington ◽

P. Mahadevan ◽

K. L. Roache

Keyword(s):

Dairy Cattle ◽

Milk Production ◽

Milk Yield ◽

Reproductive Performance ◽

Production Performance ◽

Tropical Environment ◽

Calving Interval ◽

Considerable Potential ◽

Production Characteristics

SUMMARYThis study is the first comprehensive estimation of breed parameters for the Jamaica Hope breed of dairy cattle. It has shown that the breed has considerable potential for milk production undser good husbendry in a tropical environment. Improvements in reproductive performance may be achieved, without prejudice to production performance, by using milk yield per day of calving interval (which has a moderatoly high repestability) as a criterion for selection.

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