Encyclopedia Of Animal Science - Q ppt

... r Recombinant mQ 0.5 r Parental mq 0.5(1 Àr) The progeny of the sire that receive the M marker allele from their sire will be of two types: MQ and Mq. 760 Encyclopedia of Animal Science DOI: 10.1081/E ... by example, using the basic half-sib sire-family QTL mapping design. Let M be a marker locus and Q a nearby linked QTL, with alleles M and m and Q and q, respectively, where...

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... U.S.A. INTRODUCTION Traditionally thought of as part of the art of husbandry, the welfare of farm animals has become a critical area of livestock production and animal science. The notion of welfare is derived from ... bilateral, round structures sur- rounded by the infundibulum, which is a part of the oviduct, and is attached to the dorsal wall of the peritoneal 398 Encyc...

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... study of animal behavior is important in day-to-day livestock management and veterinary medicine. Ethology, or the study of animal behavior, can answer basic ethological questions or questions of ... dis- sociation of b-casein from the casein micelle or solubili- zation of calcium phosphate under cold storage. [11] Yield of cheese from sheep milk is dependent on: breed of sh...

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... the concept of value- based marketing. Animal scientists have desired the ability to determine the carcass traits of composition and quality in live animals as aids in selection of breeding stock ... terms of distance and tissue depth. EARLY EQUIPMENT The ultrasonic reflectance technique A-mode was used for the evaluation of fat thickness of swine [1] in the late 1950s. The ultr...

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... the mid-20th century when academic departments of animal husbandry changed their names to departments of animal science. As the textbooks put it, animal science became ‘‘the application of industrial ... aspects of animal care are the fundamental principles of animal Adaptation and Stress: Animal State of Being 3 Adaptation and Stress: Animal State of Being Stan...

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... taurus breeds. UTILIZATION OF BREEDS Significant levels of heterosis are maintained by use of rotational cross breeding systems [5] or by use of 74 Encyclopedia of Animal Science DOI: 10.1081/E EAS ... of quality, the eating quality or overall palatability of the beef is of primary concern when dealing with ‘‘quality.’’ USDA Quality Grades are assigned to beef carcasses...

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... daily energy requirement. Factors such as temperature, energy content of the feed, breed as strain of the hen, and rate of egg production affect this requirement. The energy-to- amino acid (methionine) ... use of beta-apo-8 1 carotenoid produced a pleasing yellow color, but cantha- xanthin produced an orange-to-red color that was not acceptable. It was reported [9] that different comb...

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... However, al- though free stalls can offer several advantages relative to tie stalls in terms of cow state of being, each free-stall design and each farm is unique, and animal state of being may ... degradable protein (RDP) was 9.9% of total DM. The cow producing 55 kg of milk had a predicted DMI of 30.2 kg. The TMR had an NE-l value of 1.58 Mcal/kg of DM. RDP was 9.6% of t...

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... standardized because of more competition. Local direct deliveries may cost 15 to 25 cents or more per dozen due to the profile of purchases, the quantity of eggs per drop-off, the number of stops per ... to maximize the health status of livestock is critical to both animal productivity and animal well-being. A major influence of the health status of livestock is how each ind...

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... the linear alignment of genes or seg- ments of DNA as they reside on a chromosome in posi- tions based on units of DNA nucleotides or chromosomal Encyclopedia of Animal Science 459 DOI: 10.1081/E ... produce 25 50 g of down and 95 130 g of feathers. Encyclopedia of Animal Science 453 DOI: 10.1081/E EAS 120019645 Copyright D 2005 by Marcel Dekker, Inc. All rights rese...

Ngày tải lên: 02/07/2014, 00:20