Sök:

Sökresultat:

204 Uppsatser om Restricted suckling - Sida 1 av 14

Cross-suckling when sows are group housed during lactation : associations with sow productivity and behaviour

Cross-suckling, i.e. when an offspring nurses a female other than their own mother, occurs in pig production systems where sows are group housed during lactation. As production systems where several sows and their litters are housed together during lactation are getting more common, the need of knowledge regarding cross-suckling increases. The overall aims with this thesis was to investigate how sow behaviour and productivity are associated with the occurrence of cross-suckling, and to investigate consistency in sow nursing behaviour related to cross-suckling. The study included information about the first 4 parities of 40 LxY sows kept in outdoor and indoor production environments. Sows were single housed the first 2 weeks after farrowing and group housed (4 or 5 sows per group) from 2 weeks after farrowing until weaning, 7 weeks after farrowing.

Samband mellan tidig ålder vid avskiljning och missriktat diande hos föl :

By tradition horses are weaned at an age of 5-6 months. This study illuminates weaned foals misdirected suckling behaviour, which means that they try to suckle another foal. Since no information about this issue is presented, we decided to perform a behaviour study on weaned foals. The misdirected suckling behaviour was studied on a group with 7 foals, with both fillies and colts. In the group the weaning age varied between 147 days and 215 days, and the first time we observed them, they had been separated from the mares for 12 days.

Påverkar suggors grymtande under digivningen smågrisarnas tillväxt? :

The pig is unique in the way that it gives birth to a large number of newborns in each litter. Because of this the sow has developed a special behaviour during suckling to ensure that not only a part of the litter gets all the milk. Milk is only available during milk letdown. The piglets have to massage the udder for a long time before letdown and the more piglets at the udder the sooner the milk comes. The sow has developed a special grunting pattern to let the piglets know when she is ready for suckling and to signal milk letdown. Our aim with this study was to investigate if sows have individual grunting patterns repeated over time. We also wanted to know if sows with a more distinct grunting pattern have better growth in their litters.

Traditional milk production in cattle in a semi-arid area in Kenya

Livestock of pastoralists provide meat, milk, blood, dung and are useful for transportation purposes. In semi-arid and arid areas with very low precipitation the herder must often walk far distances to feed the livestock. This affects the animals? production, especially of milk. Previous studies have investigated how to improve milk production in terms of milking strategies in cattle.

När och varför dör smågrisarna under diperioden?

The purpose of this study was to compile when and why piglets die during the suckling peri-od. Piglet mortality is an important factor influencing the profitability of piglet production. There are many factors that play a role and interact whit each other. This study summarizes when the piglets die during the suckling period and reasons why the piglets die. The infor-mation given is crushed, illness, management/environmental, genetic influence and piglet birth weight/farrowingprocess.

Kalvens beteende i olika uppfödningssystem :

The purpose of this literature review was to investigate how the rearing systems influence the behaviour of dairy calves. Calves are social animals that form groups within the herd where play and social licking between calves are important social activities. Suckling is a complex behaviour and essential for the calf's survival. In the modern rearing systems the calf is usually separated from its mother soon after birth. Calves are then kept in individual pens, group pens or, more rarely, with a foster cow.

Improvements in milking management through imitation of calf behaviour

Approximately 20% of the milk within the udder of a cow is stored in the cistern and immediately available for milk removal, while activation of the milk ejection reflex is required for removing the remaining milk stored in the alveolar compartment. The aim of this literature review is to describe, evaluate and consider implications of the three different suckling activities that the calf displays during a suckling bout. In terms of milking, these phases are represented by pre-stimulation, stimulation during milking and post-stimulation. Pre-stimulation is commonly performed in order to induce the milk ejection reflex, whereby the hormone oxytocin is released and the alveoli in the secretory tissue are contracted. Time requirements regarding pre-stimulation must be considered in relation to lactation stage and milking interval.

Tvåstegsavvänjning av köttraskalvar med hjälp av nosbricka :

When beef calves are weaned abruptly at 5 to 6 months of age this triggers a strong stress reaction, since the animals have not yet untied the bonds to their mothers or stopped suckling. This is displayed as extensive vocalization and restlessness. Attempts to diminish the negative effects of weaning on sucking calves have been showing varying results. The study presented here emanates from the observation that when calves are weaned without human interference they are only prevented from suckling, but are still allowed to have social contacts with their mothers. The hypothesis was that calves weaned in two steps would be calmer, gain more weight, and be healthier than animals that were abruptly weaned. To investigate this, 15 calves where weaned in two stages (Group 2), by fitting the calves with nose tags that prevented them from suckling during 5 days prior to the separation of the cows and calves.

Samband mellan digivning, avvänjning och mjölkens sammansättning med fokus på mjölkfett

Sammansättningen och kvalitén på mjölken som produceras är betalningsgrundande och därmed är det viktigt ur en ekonomisk synvinkel att producera mjölk som håller en hög standard. Syftet med denna litteraturstudie var att undersöka om samband finns mellan typ av digivning respektive avvänjning och mjölkens sammansättning. Fokus ligger på mjölkfettet samt fettsyrorna. De produktionssystem som tas upp är begränsad digivning och artificiell uppfödning. Begränsad digivning innebär att avkomman får gå med moderdjuret vissa timmar av dygnet fram till en senare avvänjning jämfört med artificiell uppfödning där avkomman skiljs från moderdjuret strax efter förlossningen.

Manuell kontanthantering i begränsad omfattning : Strategi och styrning på funktionsnivå inom bankbranschen

In today?s ever-evolving society the use of cash is replaced by digital services in the banking sector. Some local banks restrict manual cash handling while others remove it completely. This essay examines how management accounting is affected by restricted cash handling. The theory clarifies that management accounting strategies create guidelines and provides specific framework for employees and managers in the organization.

Utfodring av föl före och efter avvänjning :

Swedish horse breeders have generally very few mares producing a few foals a year and the breeders have relatively few traditions, little knowledge and experience to breed foals successfully. It is therefore important to provide adequate information about new findings in horse nutrition. However, there is not much research about feeding the suckling foal to ensure a sound growth. Current feeding recommendations in the literature seems to be different. This gives a confusing message and the information is difficult to apply. This paper reviews some publications in the area of feeding the suckling and weaning foal. Most authors stress that it?s important to start feeding the foal early in life.

Jämförelse av två metoder för att avgöra om en honkatt har äggstockar

Restricted to only library staff until 1 of June 2014.


Svenskdidaktik i (o)jämlikhetens landskap : en studie om språkutveckling, rasifiering och klass

Symbolic resources transform in to social power and material resources through the educational system. This entails that all students should have equal access to it.The essay compares Swedish didactics in ?immigrant? and ?white? schools, all situated in socio-economically underprivileged areas, analysing interviews with eight Swedish teachers about their didactics regarding restricted and elaborated language code.Understanding teacher?s work in the class room requires attention to the intersections between race and class, and of both to the distribution of symbolic resources in general.The essay finds that the practice of the? immigrant? school teachers differs from the ?white? school teachers?. The former are active, providing intellectual tools, scaffolding and driving force while the later choose a more passive attitude, letting students decide for themselves what to do and what goals to reach. Consequently ?white? schools allow the reproduction of unequal distribution of symbolic resources while practice in immigrant schools aim to compensate for disadvantages.Practice seems to win legitimacy by different sets of conceptualisations.

Returbiljett till apornas planet : En studie om primär och sekundär adaption

The purpose of this essay is to study two film adaptations of the original Planet of the Apes novel and see what kind of relationship the two adaptations have with each other. The main question is if the secondary film adaptation is restricted by the primary and if the relationships between these two are as two separate adaptations or as a remake of an adaptation. What the results of the study show is that the secondary adaptation can not be seen as a remake even though it gets some of its inspiration from both the original story as well as the primary adaptation. The secondary adaptation is, however, restricted in what it can adapt due to the primary adaptation having the first pick, at least if the secondary adaptation wishes to be a whole new adaptation and not a remake of the primary. The study shows also that the fidelity in the secondary adaptation is not necessarily to either the original or the primary but to the knowledge the audience has about the Planet of the Apes universe which they have gathered from all of the important versions of the story.

1 Nästa sida ->